subject:(Microgrids)

Queens University

1. Seidi Khorramabadi, Sima. Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems .

Degree: Electrical and Computer Engineering, 2014, Queens University

URL: http://hdl.handle.net/1974/12615

► Control of microgrids, as the main building blocks of the future smart power grid, is an important problem which has initiated many research activities in… (more)

▼ Control of microgrids, as the main building blocks of the future smart power grid, is an important problem which has initiated many research activities in recent years. The microgrid should appear to the power grid as a single united entity, in which the majority of distributed energy resources are interfaced through voltage source converters (VSCs). In dynamic situations, specific structure, natural nonlinearity, and low physical inertia of VSCs may lead to higher sensitivity to network disturbances and power oscillations and in occasions result in violation of overall stability; hence the need for fast and flexible control techniques in the microgrid is evident. The design simplicity and easy implementation of PI controllers have resulted in their popularity in controlling VSCs; however their application is associated with a number of drawbacks such as poor harmonics attenuation and unsatisfactory operation in case of load changes and high penetration of distributed generators. In this Ph.D. thesis, three different control algorithms are proposed for VSCs in microgrid systems. The control systems are based on the adaptive critic-based control concept and employ an element called critic whose task is to evaluate the credibility of the performance and compare it with the desired goals. The critic’s evaluations are then used in an on-line procedure to update the controller parameters during dynamic transients. The critic-based control idea is used in conjunction with PI and neuro-fuzzy controllers. With the proposed approach, the need for precise design of the controller is removed, and because of the supervisory role of the critic, no complicated mathematical calculations are required for its design. This fact increases the degree of intelligence and adaptivity against changes such as high penetration of distributed generators and dynamically demanding situations like presence of motor loads and results in a self-tuning and non-model-based control system with high computational speed. The simulation results verify that the application of the proposed approach significantly improves the dynamic performance by reducing the convergence time, output oscillations, tracking error, and unwanted current harmonics and confirm the effective control in case of high penetration of distributed generators.

Subjects/Keywords: Power Electronics ; Fuzzy Logic ; Microgrids

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APA (6^th Edition):

Seidi Khorramabadi, S. (2014). Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12615

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Seidi Khorramabadi, Sima. “Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems .” 2014. Thesis, Queens University. Accessed March 07, 2021. http://hdl.handle.net/1974/12615.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Seidi Khorramabadi, Sima. “Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems .” 2014. Web. 07 Mar 2021.

Vancouver:

Seidi Khorramabadi S. Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems . [Internet] [Thesis]. Queens University; 2014. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1974/12615.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Seidi Khorramabadi S. Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems . [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12615

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

2. Laudiero, Nico (author). Stochastic Control Strategies for Residential Microgrids: Potential Benefits of Micro-CHP Installation in Multifamily Buildings.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:5b3305dc-61d7-49e7-94f2-274b0ffd3c3c

► Fast depleting fossil fuels and growing awareness for environmental protection have led us to the urgency of a long-term energy planning where reduction of emissions,… (more)

▼ Fast depleting fossil fuels and growing awareness for environmental protection have led us to the urgency of a long-term energy planning where reduction of emissions, integration of renewable supply, and energy efficiency improvement represent the main targets of a ‘smarter’ employment of primary resources. Research is needed nowadays to drive a transient phase towards the construction of future ‘smart grids’, where multiple actors will be able to communicate with each other and efficiently adapt their production/consumption with respect to the dynamic evolution of the increasingly complex power network. In this scenario, operational management of small, local electricity networks (microgrids) and their two-way interconnection to the main grid are creating new opportunities and, at the same time, new technological challenges. Advanced control schemes are being investigated to smoothen the integration of distributed generation and to achieve optimal operation at microgrid level, through coordination and dispatching of power generation, flexible loads, and storage elements. The residential sector is responsible for about 30% of the global energy consumption and has historically played a passive role in the unidirectional centralised power infrastructure. A residential microgrid that utilises controllable prime movers, such as gas engines, to compensate fluctuating demand and output of renewable energy would represent a fundamental step towards a more economic, efficient, and environment friendly energy infrastructure. This MSc thesis project focuses on the design of energy management systems in residential buildings where micro-Combined Heat and Power (CHP) generators are installed. Micro-CHP technology is able to produce electrical energy locally in a controllable way, having at the same time the advantage of efficiently employing by-product heat to satisfy thermal demand of the building where it is located. The purpose of our work is an economic analysis regarding the profitability of investment in distributed energy resources for Dutch households and a subsequent investigation about the benefits that advanced control techniques would lead to microgrid operation on the long run. For this reason, specific case studies are built based on real data of thermal and electric consumption, which have been collected through smart meters in various Dutch houses. Two different versions of the microgrid are considered: a first case only involves micro-CHP and thermal energy storage, whereas a second one is expanded to include solar panels. Advanced techniques employed for supervisory control of power flows in microgrids generally aim to take into account relevant information about the consequences of choosing specific actions, by considering future predictions of system evolution. Model Predictive Control (MPC) is a well-known, established and widely used control technique that is often considered as a natural approach to adopt in microgrids. Its main strength is the ability to turn a control problem into an optimisation… Advisors/Committee Members: Pippia, Tomas (mentor), De Schutter, Bart (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: MPC; Stochastic Process; CHP; Microgrids

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APA (6^th Edition):

Laudiero, N. (. (2018). Stochastic Control Strategies for Residential Microgrids: Potential Benefits of Micro-CHP Installation in Multifamily Buildings. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5b3305dc-61d7-49e7-94f2-274b0ffd3c3c

Chicago Manual of Style (16^th Edition):

Laudiero, Nico (author). “Stochastic Control Strategies for Residential Microgrids: Potential Benefits of Micro-CHP Installation in Multifamily Buildings.” 2018. Masters Thesis, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:5b3305dc-61d7-49e7-94f2-274b0ffd3c3c.

MLA Handbook (7^th Edition):

Laudiero, Nico (author). “Stochastic Control Strategies for Residential Microgrids: Potential Benefits of Micro-CHP Installation in Multifamily Buildings.” 2018. Web. 07 Mar 2021.

Vancouver:

Laudiero N(. Stochastic Control Strategies for Residential Microgrids: Potential Benefits of Micro-CHP Installation in Multifamily Buildings. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:5b3305dc-61d7-49e7-94f2-274b0ffd3c3c.

Council of Science Editors:

Laudiero N(. Stochastic Control Strategies for Residential Microgrids: Potential Benefits of Micro-CHP Installation in Multifamily Buildings. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:5b3305dc-61d7-49e7-94f2-274b0ffd3c3c

Delft University of Technology

3. Tagliapietra, Michele (author). A Geographic Information Systems-based approach for the planning and evaluation of remote DC micro-grid topologies for rural electrification.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:a0ba73b5-8e05-48c1-9b5e-ebb55af4ae14

► Even if renewable energy generation is improving and diffusing rapidly, reliable energy access is still a major issue for a consistent part of the global… (more)

▼ Even if renewable energy generation is improving and diffusing rapidly, reliable energy access is still a major issue for a consistent part of the global population, with more than 1 billion people still lacking energy access globally. The vast majority of this share of population is living in remote rural areas of developing countries, experiencing major issues in terms of living conditions. While consistent efforts have been done in the past decades to solve the problem, still a lot of work has to be done and novel approaches need to be implemented. In the past, most of the new energy connections were achieved through national grid extension, which is proving to be a non-adequate short-term solution for a consistent share of the remaining part of the population living in rural areas. This is the reason why decentralised solutions, such as Solar Home Systems and DC micro-grids, are becoming more appealing as alternative ways to improve energy access in developing countries. In this framework, this Master's thesis will focus on DC solar micro-grids as a solution to the energy access problem. More specifically, the aim will be to develop a methodology to gather, process and analyse data, for planning and evaluation of remote DC micro-grid networks in rural areas of developing countries. One of the main novelty aspects of this proposed methodology is the integrated implementation of Geographic Information Systems and concepts derived from the mathematical field of Graph Theory, together with an electrical analysis. The methodology is clearly divided into three consecutive steps. The first step focuses on gathering and processing ground-level data using GIS, to compare different micro-grid layouts in term of geometrical length. The second step consists of a graph theory-based dual-objective optimisation algorithm to design meshed micro-grids from a set of starting topologies. The third step implements a DC power flow tool to analyse the operational behaviour of the optimised layouts. The proposed methodology is explained in detail throughout the report, with an example of its application to a sample of villages in different world-wide locations. The results of this first application of the proposed methodology allow to draw some conclusions on the methodology itself and on the comparison of different micro-grid topologies. First of all, the huge potential of the combination of GIS tools and graph theory applied to micro-grid planning is shown. The results of the layout comparison show how typically implemented micro-grid layouts are generally outperformed by micro-grids designed using novel concepts and this integrated approach. Nonetheless, each specific case studies has peculiar characteristics and conditions that need to be taken carefully into account and can lead to totally different kinds of optimal solutions. It is hence of vital importance to have a methodology which is at the same time well-structured and flexible to adapt to changes and modification of parameters in order to perfectly reflect… Advisors/Committee Members: Bauer, Pavol (mentor), Narayan, Nishant (mentor), Qin, Zian (mentor), Heijnen, Petra (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Microgrids; GIS; graph theory

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APA (6^th Edition):

Tagliapietra, M. (. (2019). A Geographic Information Systems-based approach for the planning and evaluation of remote DC micro-grid topologies for rural electrification. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a0ba73b5-8e05-48c1-9b5e-ebb55af4ae14

Chicago Manual of Style (16^th Edition):

Tagliapietra, Michele (author). “A Geographic Information Systems-based approach for the planning and evaluation of remote DC micro-grid topologies for rural electrification.” 2019. Masters Thesis, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:a0ba73b5-8e05-48c1-9b5e-ebb55af4ae14.

MLA Handbook (7^th Edition):

Tagliapietra, Michele (author). “A Geographic Information Systems-based approach for the planning and evaluation of remote DC micro-grid topologies for rural electrification.” 2019. Web. 07 Mar 2021.

Vancouver:

Tagliapietra M(. A Geographic Information Systems-based approach for the planning and evaluation of remote DC micro-grid topologies for rural electrification. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:a0ba73b5-8e05-48c1-9b5e-ebb55af4ae14.

Council of Science Editors:

Tagliapietra M(. A Geographic Information Systems-based approach for the planning and evaluation of remote DC micro-grid topologies for rural electrification. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:a0ba73b5-8e05-48c1-9b5e-ebb55af4ae14

Georgia Tech

4. Street, Michael. Integrated performance based design of communities and distributed generation.

Degree: PhD, Architecture, 2016, Georgia Tech

URL: http://hdl.handle.net/1853/56258

► The vertically integrated utility market within the U.S. is undergoing rapid changes due to the rise of small-scale distributed power generation known as microgrids, which… (more)

▼ The vertically integrated utility market within the U.S. is undergoing rapid changes due to the rise of small-scale distributed power generation known as microgrids, which are local networks of power generation and distribution typically serving a demand less than 40 MW. Primary drivers for microgrid investment are the performance benefits these systems return to their owners, which include increased reliability, reduced emissions and reduced operating costs. We define a novel modeling methodology to represent the microgrid as an integrated system of the demand and supply. Previous work to develop an integrated system model does not adequately model the building thermal demand, incorporate a modeler’s knowledge of the grid’s availability or allow for a user to model their tolerance for unmet demand. To address these modeling issues, we first demonstrate a technique for representing a building stock as a reduced order hourly demand model. Next, as demand side measures are typically defined at the building level as discrete options, we demonstrate a technique for converting a large discrete optimization problem into a simplified continuous variable optimization problem through the use of Pareto efficient cost functions. The reduced problem specification results in 90% fewer function evaluations for a benchmark optimization task. Then, we incorporate two new features into the Distributed Energy Resource Customer Adoption Model (DER-CAM) developed by Lawrence Berkeley National Laboratory (LBNL) that allow users to define grid outage scenarios and their limit of expected energy demand not served. Applying the integrated model to a microgrid design scenario return solutions that exhibit on average an 8% total annual cost reduction and 18% reduction in CO2 emissions versus a Supply Only case. Similarly, the results on average reduce total annual cost by 5% and annual emissions by 17% for a Demand First case. In summary, we present a modeling methodology with application to joint decision making that involve renewable power supply, building systems and passive building design measures and recommend this model for performance based microgrid design. Advisors/Committee Members: Augenbroe, Godfried (advisor), Brown, Jason (committee member), Jackson, Roderick (committee member), Stadler, Michael (committee member), Grijalva, Santiago (committee member).

Subjects/Keywords: Microgrids; Reliability; Integrated system

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APA (6^th Edition):

Street, M. (2016). Integrated performance based design of communities and distributed generation. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/56258

Chicago Manual of Style (16^th Edition):

Street, Michael. “Integrated performance based design of communities and distributed generation.” 2016. Doctoral Dissertation, Georgia Tech. Accessed March 07, 2021. http://hdl.handle.net/1853/56258.

MLA Handbook (7^th Edition):

Street, Michael. “Integrated performance based design of communities and distributed generation.” 2016. Web. 07 Mar 2021.

Vancouver:

Street M. Integrated performance based design of communities and distributed generation. [Internet] [Doctoral dissertation]. Georgia Tech; 2016. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1853/56258.

Council of Science Editors:

Street M. Integrated performance based design of communities and distributed generation. [Doctoral Dissertation]. Georgia Tech; 2016. Available from: http://hdl.handle.net/1853/56258

Texas A&M University

5. Ramos-Ruiz, Jorge Alfonso. Advanced Power Electronics Topologies and Control for Electric Distribution and Microgrid Applications.

Degree: PhD, Electrical Engineering, 2020, Texas A&M University

URL: http://hdl.handle.net/1969.1/191834

► The importance of power electronics is increasingly evident as the world economy becomes more electrified. Power electronics play a key role in enabling renewable energy… (more)

▼ The importance of power electronics is increasingly evident as the world economy becomes more electrified. Power electronics play a key role in enabling renewable energy generation growth. Every year the capacity of electricity generation using renewable sources of energy increases worldwide, this growth is expected to continue for several decades. Power electronic converters are needed to make the integration of such resources a reality. Renewable energy sources such as, solar photovoltaic (PV), wind turbines and micro-turbines are being installed even at distribution centers such as residential areas, industrial locations, etc. When the power generated by these distributed energy resources (DERs) is higher than the local load demand, it is nowadays possible to supply power to the utility grid from the distribution centers and store the excess energy in battery energy storage systems (BESS) for peak shaving and capacity smoothing. Additionally, the possibility of transacting energy between peers in the near future has received increased attention. As DERs penetration increases, the control of the system becomes more challenging for the distribution system operator (DSO), as the intermittent nature of renewable sources can result in grid instability and voltage magnitude variations, limiting the maximum amount of DERs that can be connected to the grid significantly. Therefore, this dissertation presents cutting edge power electronics topologies to enable the increased penetration of DERs in the distribution grid. The first topology accurately controls the voltage magnitude and phase combining phase shifting transformer techniques with AC/AC converters to achieve active and reactive power flow control. This accurate control enables the use of a modified angle droop control scheme, also proposed in this dissertation. The second topology is a self organizing power electronics converter with control intelligence at the edge of the distribution network, intended for residential applications. This topology significantly improves the traditional residential distribution network, allowing massive levels of PV penetration in residential systems, even 100%, promoting further investment on renewables. Every topology includes a suggested application to demonstrate their value for the electrical grid, as well as simulation results. Experimental results are also included for the second topology. Advisors/Committee Members: Enjeti, Prasad (advisor), Xie, Le (committee member), Bhattacharyya, Shankar P (committee member), Xie, Zhizhang (committee member).

Subjects/Keywords: Power Electronics; Microgrids; Solar energy

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APA (6^th Edition):

Ramos-Ruiz, J. A. (2020). Advanced Power Electronics Topologies and Control for Electric Distribution and Microgrid Applications. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/191834

Chicago Manual of Style (16^th Edition):

Ramos-Ruiz, Jorge Alfonso. “Advanced Power Electronics Topologies and Control for Electric Distribution and Microgrid Applications.” 2020. Doctoral Dissertation, Texas A&M University. Accessed March 07, 2021. http://hdl.handle.net/1969.1/191834.

MLA Handbook (7^th Edition):

Ramos-Ruiz, Jorge Alfonso. “Advanced Power Electronics Topologies and Control for Electric Distribution and Microgrid Applications.” 2020. Web. 07 Mar 2021.

Vancouver:

Ramos-Ruiz JA. Advanced Power Electronics Topologies and Control for Electric Distribution and Microgrid Applications. [Internet] [Doctoral dissertation]. Texas A&M University; 2020. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1969.1/191834.

Council of Science Editors:

Ramos-Ruiz JA. Advanced Power Electronics Topologies and Control for Electric Distribution and Microgrid Applications. [Doctoral Dissertation]. Texas A&M University; 2020. Available from: http://hdl.handle.net/1969.1/191834

University of Illinois – Urbana-Champaign

6. Cady, Stanton T. Architectures and Algorithms for Distributed Generation Control of Microgrids.

Degree: PhD, Electrical & Computer Engr, 2016, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/90729

► Microgrids and the control challenges they pose have recently received significant attention in a wide array of research communities. While the potential to increase efficiency,… (more)

▼ Microgrids and the control challenges they pose have recently received significant attention in a wide array of research communities. While the potential to increase efficiency, reliability, and adaptability of the utility grid is a primary motivation for their development, microgrids can also be used to meet the growing electric power demands in numerous applications. Compared with large power systems, microgrids may rely on inertia-less generators such as photovoltaic arrays that are interfaced through an inverter. Although the lack of inertia and other microgrid characteristics pose control challenges, microgrids are amenable to new control paradigms, e.g., those that rely on distributed computations rather than a centralized processor. We address the problem of distributed generation control in islanded ac microgrids with and without inertia. In the case of microgrids comprising heterogeneous generators, some of which have inertia, we propose a control architecture for frequency regulation and optimal dispatch designed to take advantage of microgrid-specific properties. For microgrids with no inertia, we propose a control architecture that is designed to drive the average frequency error to zero while ensuring that the frequency at every bus is equal and that the operating point that results is stable. In both cases, we also propose an implementation of each control architecture that relies on distributed algorithms that eliminate the need for a centralized processor with global information. For the architecture we propose for microgrids with inertia, we provide analytical and experimental results that verify the effectiveness of the proposed architecture, and illustrate the performance of the distributed algorithms on which it relies under a variety of scenarios. We verify the proposed control architecture for inertia-less microgrids by analytically showing that the resulting closed-loop system is stable; we also illustrate the features of the architecture using numerical simulations of three test cases applied to six- and 37-bus networks. Advisors/Committee Members: Dominguez-Garcia, Alejandro D. (advisor), Dominguez-Garcia, Alejandro D. (Committee Chair), Hadjicostis, Christoforos N. (committee member), Sauer, Peter W. (committee member), Vaidya, Nitin H. (committee member).

Subjects/Keywords: Power systems; Microgrids; Distributed control; Islanded microgrids; Frequency regulation; Optimal dispatch

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APA (6^th Edition):

Cady, S. T. (2016). Architectures and Algorithms for Distributed Generation Control of Microgrids. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/90729

Chicago Manual of Style (16^th Edition):

Cady, Stanton T. “Architectures and Algorithms for Distributed Generation Control of Microgrids.” 2016. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 07, 2021. http://hdl.handle.net/2142/90729.

MLA Handbook (7^th Edition):

Cady, Stanton T. “Architectures and Algorithms for Distributed Generation Control of Microgrids.” 2016. Web. 07 Mar 2021.

Vancouver:

Cady ST. Architectures and Algorithms for Distributed Generation Control of Microgrids. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2142/90729.

Council of Science Editors:

Cady ST. Architectures and Algorithms for Distributed Generation Control of Microgrids. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/90729

University of Alberta

7. Radwan, Amr A A. Modeling, Analysis and Stabilization of Converter-Dominated Power Distribution Grids.

Degree: MS, Department of Electrical and Computer Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/8k71nh35s

► The energy sector is moving towards extensive use of power electronic (PE) converters to interface distributed generation (DG) units and modern converter-interfaced loads (CILs). Therefore,… (more)

Subjects/Keywords: Constant Power; Microgrids; Converters; Stabilization; Nyquist

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Radwan, A. A. A. (2011). Modeling, Analysis and Stabilization of Converter-Dominated Power Distribution Grids. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/8k71nh35s

Chicago Manual of Style (16^th Edition):

Radwan, Amr A A. “Modeling, Analysis and Stabilization of Converter-Dominated Power Distribution Grids.” 2011. Masters Thesis, University of Alberta. Accessed March 07, 2021. https://era.library.ualberta.ca/files/8k71nh35s.

MLA Handbook (7^th Edition):

Radwan, Amr A A. “Modeling, Analysis and Stabilization of Converter-Dominated Power Distribution Grids.” 2011. Web. 07 Mar 2021.

Vancouver:

Radwan AAA. Modeling, Analysis and Stabilization of Converter-Dominated Power Distribution Grids. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Mar 07]. Available from: https://era.library.ualberta.ca/files/8k71nh35s.

Council of Science Editors:

Radwan AAA. Modeling, Analysis and Stabilization of Converter-Dominated Power Distribution Grids. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/8k71nh35s

Penn State University

8. Austin, Peter Miller. Developing a Stability Assessment Method for Power Electronics-based Microgrids.

Degree: 2015, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/27190

► Modern microgrids with microsources and energy storage are dependent on power electronics for control and regulation. Under certain circumstances power electronics can be destabilizing to… (more)

Subjects/Keywords: microgrids; power electronics stability; negative incremental impedance

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APA (6^th Edition):

Austin, P. M. (2015). Developing a Stability Assessment Method for Power Electronics-based Microgrids. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/27190

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Austin, Peter Miller. “Developing a Stability Assessment Method for Power Electronics-based Microgrids.” 2015. Thesis, Penn State University. Accessed March 07, 2021. https://submit-etda.libraries.psu.edu/catalog/27190.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Austin, Peter Miller. “Developing a Stability Assessment Method for Power Electronics-based Microgrids.” 2015. Web. 07 Mar 2021.

Vancouver:

Austin PM. Developing a Stability Assessment Method for Power Electronics-based Microgrids. [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Mar 07]. Available from: https://submit-etda.libraries.psu.edu/catalog/27190.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Austin PM. Developing a Stability Assessment Method for Power Electronics-based Microgrids. [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/27190

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

9. Rigaut, Tristan. Time decomposition methods for optimal management of energy storage under stochasticity : Méthodes de décomposition temporelle pour la gestion optimale de stockages énergétiques sous incertitudes.

Degree: Docteur es, Mathématiques, 2019, Université Paris-Est

URL: http://www.theses.fr/2019PESC2015

► L'évolution du stockage d'énergie permet de développer des méthodes innovantes de gestion de l'énergie à une échelle locale. Les micro réseaux électriques sont une forme… (more)

▼ L'évolution du stockage d'énergie permet de développer des méthodes innovantes de gestion de l'énergie à une échelle locale. Les micro réseaux électriques sont une forme émergente de petits réseaux électriques munis de production locale, de stockage d'énergie et en particulier d'un système de gestion de l'énergie (EMS pour Energy Management System). De nombreuses études et recherches scientifiques ont été menées pour proposer diverses stratégies d'implémentation de ces EMS. Néanmoins il n'existe pas à ce jour d'articulation claire et formelle de ces méthodes permettant leur comparaison. L'une des principales difficultés pour les EMS, est la gestion des dynamiques des différents systèmes énergétiques. Les variations de courant vont à la vitesse de l'électron, la production d'énergie solaire photovoltaïque varie au gré des nuages et différentes technologies de stockages peuvent réagir plus ou moins vites à ces phénomènes imprévisibles. Nous étudions dans ce manuscrit, un formalisme mathématique et des algorithmes basés sur la théorie de l'optimisation stochastique multi-étapes et la Programmation Dynamique. Ce formalisme permet de modéliser et de résoudre des problèmes de décisions inter-temporelles en présence d'incertitudes, à l'aide de méthodes de décomposition temporelle que nous appliquons à des problèmes de gestion de l'énergie. Dans la première partie de cette thèse, "Contributions à la décomposition temporelle en optimisation stochastique multi-étapes", nous présentons le formalisme général que nous utilisons pour décomposer en temps les problèmes d'optimisation stochastique avec un grand nombre de pas de temps. Nous classifions ensuite différentes méthodes de contrôle optimal au sein de ce formalisme. Dans la seconde partie, "Optimisation stochastique de stockage d'énergie pour la gestion des micro réseaux", nous comparons différentes méthodes, introduites dans la première partie, sur des cas réels. Dans un premier temps, nous contrôlons une batterie ainsi que des ventilations dans une station de métro récupérant de l'énergie de freinage des trains, en comparant quatre algorithmes différents. Dans un second temps, nous montrons comment ces algorithmes pourraient être implémentés sur un système réel à l'aide d'une architecture de contrôle hiérarchique de micro réseaux électrique en courant continu. Le micro réseaux étudié connecte cette fois ci de l'énergie photovoltaïque à une batterie, une super-capacité et à une charge électrique. Enfin nous appliquons le formalisme de décomposition par blocs temporels présenté dans la première partie pour traiter un problème de gestion de charge de batterie mais aussi de son vieillissement long terme. Ce dernier chapitre introduit 2 algorithmes basés sur la décomposition par blocs temporels qui pourraient être utilisés pour le contrôle hiérarchique de micro réseaux ou les problèmes d'optimisation stochastique présentant un grand nombre de pas de temps. Dans la troisième et dernière partie, "Logiciels et expériences", nous présentons DynOpt.jl un paquet développé en langage… Advisors/Committee Members: Bourquin, Frédéric (thesis director), Chancelier, Jean-Philippe (thesis director).

Subjects/Keywords: Micro réseaux; Énergie; Optimisation; Microgrids; Energy; Optimization

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APA (6^th Edition):

Rigaut, T. (2019). Time decomposition methods for optimal management of energy storage under stochasticity : Méthodes de décomposition temporelle pour la gestion optimale de stockages énergétiques sous incertitudes. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2019PESC2015

Chicago Manual of Style (16^th Edition):

Rigaut, Tristan. “Time decomposition methods for optimal management of energy storage under stochasticity : Méthodes de décomposition temporelle pour la gestion optimale de stockages énergétiques sous incertitudes.” 2019. Doctoral Dissertation, Université Paris-Est. Accessed March 07, 2021. http://www.theses.fr/2019PESC2015.

MLA Handbook (7^th Edition):

Rigaut, Tristan. “Time decomposition methods for optimal management of energy storage under stochasticity : Méthodes de décomposition temporelle pour la gestion optimale de stockages énergétiques sous incertitudes.” 2019. Web. 07 Mar 2021.

Vancouver:

Rigaut T. Time decomposition methods for optimal management of energy storage under stochasticity : Méthodes de décomposition temporelle pour la gestion optimale de stockages énergétiques sous incertitudes. [Internet] [Doctoral dissertation]. Université Paris-Est; 2019. [cited 2021 Mar 07]. Available from: http://www.theses.fr/2019PESC2015.

Council of Science Editors:

Rigaut T. Time decomposition methods for optimal management of energy storage under stochasticity : Méthodes de décomposition temporelle pour la gestion optimale de stockages énergétiques sous incertitudes. [Doctoral Dissertation]. Université Paris-Est; 2019. Available from: http://www.theses.fr/2019PESC2015

Delft University of Technology

10. Oudshoorn, Kaj (author). Game Theoretic Stable Microgrid Formation in the Electricity Grid.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:5a3dedef-fa1e-4d79-8d4e-5fbd7f0e9875

► The current architecture of the power grid is outdated and will not provide the means to deal with the decentralization of energy sources. The smart… (more)

Subjects/Keywords: Microgrids; Stable Graph Partitioning; Coalition Theory; Algorithm

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APA (6^th Edition):

Oudshoorn, K. (. (2017). Game Theoretic Stable Microgrid Formation in the Electricity Grid. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5a3dedef-fa1e-4d79-8d4e-5fbd7f0e9875

Chicago Manual of Style (16^th Edition):

Oudshoorn, Kaj (author). “Game Theoretic Stable Microgrid Formation in the Electricity Grid.” 2017. Masters Thesis, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:5a3dedef-fa1e-4d79-8d4e-5fbd7f0e9875.

MLA Handbook (7^th Edition):

Oudshoorn, Kaj (author). “Game Theoretic Stable Microgrid Formation in the Electricity Grid.” 2017. Web. 07 Mar 2021.

Vancouver:

Oudshoorn K(. Game Theoretic Stable Microgrid Formation in the Electricity Grid. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:5a3dedef-fa1e-4d79-8d4e-5fbd7f0e9875.

Council of Science Editors:

Oudshoorn K(. Game Theoretic Stable Microgrid Formation in the Electricity Grid. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:5a3dedef-fa1e-4d79-8d4e-5fbd7f0e9875

University of New South Wales

11. Wu, Shunxiang. User-centric peer-to-peer energy system for residential microgrids.

Degree: Electrical Engineering & Telecommunications, 2019, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/64869 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:62816/SOURCE02?view=true

► The development of distributed energy resources (DERs) and the increasing affordability of residential solar power has meant that more and more families are now supplying… (more)

▼ The development of distributed energy resources (DERs) and the increasing affordability of residential solar power has meant that more and more families are now supplying their own domestic electricity with small-scale generating systems. This brings enormous opportunities and challenges to the energy market. The chance to develop new business models that give residential customers different options to deal with their excess generation, is one such opportunity. At this point, the choice made by most is to sell the residual energy back to the grid in return for payment of a feed-in-tariff by the network, even though the current level that tariff is only 1/4 or 1/3 of the cost of buying electricity from the grid. This means the potential benefit of installing a domestic solar system has not yet be fully realised and, in the absence of any financial motivation to install solar, it is likely to slow down the speed at which the market transforms to clean energy. It is therefore critical to find a way to maximise the financial efficiency of residential microgrids. A potential and promising solution is peer-to-peer (P2P) energy trading in a residential microgrid.This thesis introduces, explains and compares three different structures for a peer-to-peer energy trading system. The main focus is on finding a solution that maximises both the financial incentive and social welfare. The thesis presented user centric peer to peer energy system and proposed modelling ways. In this model, potential P2P energy trading mechanisms are introduced and two innovative pricing strategies are evaluated. Based on end-user actual net-power demand, a case study is conducted to calculate, analyse and compare the impact of the P2P pricing strategies on a traditional electricity bill. To explore the effect of the two pricing strategies on the decision making of different customers, a P2P energy trading option based on prosumer profile is discussed.In summary, the proposed methods have been successfully demonstrated and compared with existing works. Simulated results were able to verify the efficiency and superiority of the proposed mechanism over other approaches. Advisors/Committee Members: Dong, Joe, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW.

Subjects/Keywords: Distributed energy resources (DERs); Residential microgrids

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APA (6^th Edition):

Wu, S. (2019). User-centric peer-to-peer energy system for residential microgrids. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/64869 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:62816/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Wu, Shunxiang. “User-centric peer-to-peer energy system for residential microgrids.” 2019. Masters Thesis, University of New South Wales. Accessed March 07, 2021. http://handle.unsw.edu.au/1959.4/64869 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:62816/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Wu, Shunxiang. “User-centric peer-to-peer energy system for residential microgrids.” 2019. Web. 07 Mar 2021.

Vancouver:

Wu S. User-centric peer-to-peer energy system for residential microgrids. [Internet] [Masters thesis]. University of New South Wales; 2019. [cited 2021 Mar 07]. Available from: http://handle.unsw.edu.au/1959.4/64869 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:62816/SOURCE02?view=true.

Council of Science Editors:

Wu S. User-centric peer-to-peer energy system for residential microgrids. [Masters Thesis]. University of New South Wales; 2019. Available from: http://handle.unsw.edu.au/1959.4/64869 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:62816/SOURCE02?view=true

University of Waterloo

12. Yazdavar, Ameen. Modelling, Control, and Planning of Microgrids for Power Quality Assurance.

Degree: 2020, University of Waterloo

URL: http://hdl.handle.net/10012/15756

► This thesis considers power quality improvement for microgrids penetrated with nonlinear loads at two levels: 1) at the device level, which is carried out through… (more)

▼ This thesis considers power quality improvement for microgrids penetrated with nonlinear loads at two levels: 1) at the device level, which is carried out through the distributed generators’ (DGs’) controllers on a decentralized basis; and 2) at the system level, in the microgrid planning, taking into account the specific features of microgrids, including the lack of a slack bus, droop-based operation of some DGs, and necessity of voltage support provision. Moreover, given that modelling is an inherent part of power quality studies, the thesis focuses on modelling at two levels: 1) at the device level, in the modelling of nonlinear loads and generators that are commonly used in microgrids; and 2) at the system level, in developing a harmonic power flow algorithm suitable for islanded microgrids to quantify the flow of harmonics as well as voltage distortions. One of the microgrid basic control objectives is to uniformly distribute the loads among different the DGs. For nonlinear loads, their non-fundamental powers should also be evenly shared along with active and reactive powers. The sharing of nonlinear loads among the DGs is always a trade-off between accuracy and voltage quality. The first research point considers a virtual harmonic conductance for each harmonic, as a family of droop characteristics in terms of conductance versus current. Assigning a variable conductance for each harmonic current improves DGs' controllability, thus offering accurate nonlinear load sharing, which is crucial at the near-rated loading, in addition to enhancing the voltage quality. The proposed method also unveils a tuning methodology for the droop characteristics that sets a maximum permissible value for each individual harmonic to comply with international standards. Lastly, a hybrid voltage and current control system is suggested to accurately track the DGs' harmonic conductances designated by the proposed droop characteristics. While the proposed algorithm is capable of accurately distributing common nonlinear loads among DGs, it also enjoys the advantage of supplying local nonlinear loads by their dedicated DGs. As the second research point, the thesis presents a planning platform that simultaneously determines the locations and sizes of DGs and capacitor banks (CBs) for isolated microgrids with a high penetration of nonlinear loads. The proliferation of nonlinear loads along with the capacitors of CBs or DGs' output filters that are distributed throughout microgrids may cause quasi-resonance and severe voltage distortions. Because these issues are affected by the locations and sizes of DGs and CBs, a harmonic analysis should be considered in the planning. For that purpose, a harmonic power flow tool tailored for planning applications is developed that takes into consideration the specific features of isolated microgrids. Given the necessity of supply continuity for isolated microgrids following a contingency, and the fact that frequency and voltage provision cannot be provided by renewable DGs, a reliability constraint…

Subjects/Keywords: microgrids; power quality; modelling; control; planning

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APA (6^th Edition):

Yazdavar, A. (2020). Modelling, Control, and Planning of Microgrids for Power Quality Assurance. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/15756

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yazdavar, Ameen. “Modelling, Control, and Planning of Microgrids for Power Quality Assurance.” 2020. Thesis, University of Waterloo. Accessed March 07, 2021. http://hdl.handle.net/10012/15756.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yazdavar, Ameen. “Modelling, Control, and Planning of Microgrids for Power Quality Assurance.” 2020. Web. 07 Mar 2021.

Vancouver:

Yazdavar A. Modelling, Control, and Planning of Microgrids for Power Quality Assurance. [Internet] [Thesis]. University of Waterloo; 2020. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10012/15756.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yazdavar A. Modelling, Control, and Planning of Microgrids for Power Quality Assurance. [Thesis]. University of Waterloo; 2020. Available from: http://hdl.handle.net/10012/15756

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Wollongong

13. Jayawardena, Athmi Vidarshika. Contributions to the development of microgrids: Aggregated modelling and operational aspects.

Degree: PhD, 2015, University of Wollongong

URL: ; https://ro.uow.edu.au/theses/4447

► Increasing levels of penetration of distributed energy resources (DERs) have trans- formed distribution networks from passive to active networks and introduced the concept of… (more)

▼ Increasing levels of penetration of distributed energy resources (DERs) have trans- formed distribution networks from passive to active networks and introduced the concept of microgrids. Dynamic characteristics of microgrids operating either in grid connected or islanded modes can be different from the traditional distribution networks due to the combination of different DERs. In order to make microgrid operation attractive, the issues associated with microgrids need to be properly anal- ysed. This thesis examines the modelling of microgrids and investigates different aspects of their operation. In the first phase of the work presented in this thesis, dynamic characteristics of microgrids comprising different distributed generators are investigated. The importance of understanding the dynamic behaviour of microgrids is highlighted through a comparative analysis carried out on a hybrid microgrid. A simulation model of a hybrid microgrid comprising a PV system, a doubly-fed induction generator (DFIG) based wind power plant, a mini hydro power plant, and loads is developed for the analysis. This study revealed that the dynamic characteristics of the microgrid are significantly influenced by the characteristics of individual DERs and their control systems. It has been noted that during grid connected mode, features of the external grid also have an impact on microgrid behaviour. The second phase of this thesis is focused on aggregated modelling of grid connected microgrids comprising both inverter interfaced and non-inverter interfaced DERs. For stability analysis, the common practice is to separate the power sys- tem into a study area of interest and external areas. In general, the study area is represented in a detailed manner while external areas are represented by dynamic equivalents. This thesis investigates the applicability of modal analysis as a tool for dynamic model equivalencing of grid connected hybrid microgrids while introducing a new index to identify the dominant modes of the system. The grid connected microgrid is represented as a single dynamic device while retaining the important dynamics. Linearised models of different DERs with control systems and loads are developed for this study. Several case studies are carried out to validate the reduced order dynamic model of the microgrid by testing under different operating conditions. Furthermore, the model equivalencing is applied on microgrids in a multi-microgrid environment to validate the methodology. Similar to the large generators in conventional power systems, grid connected microgrids have the potential to participate in energy markets to achieve technical, financial and environmental benefits. In order to enable such operation, a systematic approach in developing a capability tool for a grid connected microgrid is presented in the next phase of this thesis. A grid connected microgrid can be viewed as a single generator or a load depending on power import or export at the grid supply point. However, unlike in a single…

Subjects/Keywords: Microgrids; aggregated modelling; capability diagrams; distributed generation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jayawardena, A. V. (2015). Contributions to the development of microgrids: Aggregated modelling and operational aspects. (Doctoral Dissertation). University of Wollongong. Retrieved from ; https://ro.uow.edu.au/theses/4447

Chicago Manual of Style (16^th Edition):

Jayawardena, Athmi Vidarshika. “Contributions to the development of microgrids: Aggregated modelling and operational aspects.” 2015. Doctoral Dissertation, University of Wollongong. Accessed March 07, 2021. ; https://ro.uow.edu.au/theses/4447.

MLA Handbook (7^th Edition):

Jayawardena, Athmi Vidarshika. “Contributions to the development of microgrids: Aggregated modelling and operational aspects.” 2015. Web. 07 Mar 2021.

Vancouver:

Jayawardena AV. Contributions to the development of microgrids: Aggregated modelling and operational aspects. [Internet] [Doctoral dissertation]. University of Wollongong; 2015. [cited 2021 Mar 07]. Available from: ; https://ro.uow.edu.au/theses/4447.

Council of Science Editors:

Jayawardena AV. Contributions to the development of microgrids: Aggregated modelling and operational aspects. [Doctoral Dissertation]. University of Wollongong; 2015. Available from: ; https://ro.uow.edu.au/theses/4447

Virginia Tech

14. Hurtt, James William. Residential Microgrids for Disaster Recovery Operations.

Degree: MS, Electrical Engineering, 2013, Virginia Tech

URL: http://hdl.handle.net/10919/19242

► The need for a continuous supply of electric power is vital to providing the basic services of modern life. The energy infrastructure that the vast… (more)

Subjects/Keywords: Microgrids; Distributed Generation; Modeling; Disaster Recovery

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APA (6^th Edition):

Hurtt, J. W. (2013). Residential Microgrids for Disaster Recovery Operations. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/19242

Chicago Manual of Style (16^th Edition):

Hurtt, James William. “Residential Microgrids for Disaster Recovery Operations.” 2013. Masters Thesis, Virginia Tech. Accessed March 07, 2021. http://hdl.handle.net/10919/19242.

MLA Handbook (7^th Edition):

Hurtt, James William. “Residential Microgrids for Disaster Recovery Operations.” 2013. Web. 07 Mar 2021.

Vancouver:

Hurtt JW. Residential Microgrids for Disaster Recovery Operations. [Internet] [Masters thesis]. Virginia Tech; 2013. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10919/19242.

Council of Science Editors:

Hurtt JW. Residential Microgrids for Disaster Recovery Operations. [Masters Thesis]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/19242

University of New South Wales

15. Azim, Mohammad Imran. Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems.

Degree: Engineering & Information Technology, 2017, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/57376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43340/SOURCE02?view=true

► This thesis presents autonomous droop-based control schemes to share power proportionally in inverter-connected islanded microgrids; in which different microgrid structures such as inductive (L-type), resistive… (more)

▼ This thesis presents autonomous droop-based control schemes to share power proportionally in inverter-connected islanded microgrids; in which different microgrid structures such as inductive (L-type), resistive (R-type), and resistive-inductive (RL-type) are considered. The main aim of designing new controllers in this dissertation is to distribute the load change among intermittent distributed generators according to their power ratings.A linearized model of microgrids is used to evaluate the change in powers (real-reactive) of the distributed generators due to the load change, but it is noticed that the linearized modeling of microgrids depends on the distribution line parameters. Thus, proportional power sharing cannot be maintained. Improved droop-based algorithms are developed to share power based on droop gains by including a voltage control law; in which the reference values of the generator voltages are kept the same.A compensation-based droop control is provided by adding a power offset to the real power for balancing the inverter output power during the variation in the output of distributed generation. A derivative term is also included in droop algorithms for damping the oscillatory modes of the controllers so that improved dynamic performance can be ensured.This thesis contains eigenvalue analysis to predict the stability of microgrids. However, it is anticipated that this method may not provide satisfactory results in large inverter-dominated systems as it is based on the quasi-static approximation. In order to overcome this shortcoming, an extended dynamic phasors analysis is described in this dissertation in details to find out a suitable stability range of droop gains for the proposed controllers.Finally, the performance of the designed droop-based power sharing controller is verified on a multi photovoltaic source-based islanded test microgrid and superior dynamic performance is obtained compared with the conventional RL-type droop controller. Advisors/Committee Members: Pota, Hemanshu, Engineering & Information Technology, UNSW Canberra, UNSW.

Subjects/Keywords: Proportional Sharing; Droop Control; Islanded Microgrids

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APA (6^th Edition):

Azim, M. I. (2017). Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/57376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43340/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Azim, Mohammad Imran. “Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems.” 2017. Masters Thesis, University of New South Wales. Accessed March 07, 2021. http://handle.unsw.edu.au/1959.4/57376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43340/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Azim, Mohammad Imran. “Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems.” 2017. Web. 07 Mar 2021.

Vancouver:

Azim MI. Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems. [Internet] [Masters thesis]. University of New South Wales; 2017. [cited 2021 Mar 07]. Available from: http://handle.unsw.edu.au/1959.4/57376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43340/SOURCE02?view=true.

Council of Science Editors:

Azim MI. Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems. [Masters Thesis]. University of New South Wales; 2017. Available from: http://handle.unsw.edu.au/1959.4/57376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43340/SOURCE02?view=true

University of New South Wales

16. Song, Ruihao. Control strategies for distributed energy resources in islanded microgrids.

Degree: Electrical Engineering & Telecommunications, 2018, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/61842 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:57640/SOURCE02?view=true

► Modern power grids are mainly dominated by highly centralized generations (CG) such as thermal power generation. For consideration of construction cost and fuel transportation difficulties,… (more)

▼ Modern power grids are mainly dominated by highly centralized generations (CG) such as thermal power generation. For consideration of construction cost and fuel transportation difficulties, people tend to build centralized power plant instead of distributed installations. However, with the growing concern of environmental issues, renewable energy generations (REGs) such as wind power and photovoltaics (PV), have drawn increasing attention because they have potentials to be the main future power supply source. The key feature of REGs is that they have highly topographic preferences for the location of the power plant, for example, wind power plant can often be found in offshore areas while the large-scale solar farms are usually set up in the rural solar-rich area. The microgrid (MG) concept is proposed to encounter the impact of REGs. This research is focused on islanded operation control of the microgrid because currently microgrid applications are more likely to be found in rural areas where no grid connection is available. The difficulties in microgrids can be categorized into two main aspects: power sharing among distributed generations (DGs) and global voltage regulation. The proposed methods in this thesis are improved versions of conventional linear control systems applied to microgrids. Simulations and experiments are carried out to validate the proposed theory. It is pivotal for the simulation results to match up with theoretical expectations. In this thesis, two innovative methods are presented: a fuzzy logic compensating method for faster voltage restoration after transients, and a virtual cooperative control for power sharing among DGs. The proposed methods successfully alleviate the problems and proved working by computer simulations as well as experiments on a laboratory setup. Thus, they could be potential candidates of solutions for future adoption in practice. Advisors/Committee Members: Hredzak, Branislav, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW, Phung, Toan, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW.

Subjects/Keywords: Microgrids; Distributed generation; Power sharing control

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APA (6^th Edition):

Song, R. (2018). Control strategies for distributed energy resources in islanded microgrids. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/61842 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:57640/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Song, Ruihao. “Control strategies for distributed energy resources in islanded microgrids.” 2018. Masters Thesis, University of New South Wales. Accessed March 07, 2021. http://handle.unsw.edu.au/1959.4/61842 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:57640/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Song, Ruihao. “Control strategies for distributed energy resources in islanded microgrids.” 2018. Web. 07 Mar 2021.

Vancouver:

Song R. Control strategies for distributed energy resources in islanded microgrids. [Internet] [Masters thesis]. University of New South Wales; 2018. [cited 2021 Mar 07]. Available from: http://handle.unsw.edu.au/1959.4/61842 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:57640/SOURCE02?view=true.

Council of Science Editors:

Song R. Control strategies for distributed energy resources in islanded microgrids. [Masters Thesis]. University of New South Wales; 2018. Available from: http://handle.unsw.edu.au/1959.4/61842 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:57640/SOURCE02?view=true

Colorado State University

17. Panwar, Mayank. Operation of electric microgrids under uncertainty.

Degree: PhD, Electrical and Computer Engineering, 2017, Colorado State University

URL: http://hdl.handle.net/10217/181307

► Optimization and decision-making are non-trivial in case of multiple, incommensurable, and conflicting objectives. Decision-making becomes more complicated with uncertainty in inputs. Power system operation with… (more)

▼ Optimization and decision-making are non-trivial in case of multiple, incommensurable, and conflicting objectives. Decision-making becomes more complicated with uncertainty in inputs. Power system operation with electric microgrids subsumes all of the abovementioned aspects. Centralized decision-making in day-ahead dispatch of microgrids with multiple objectives in a grid-connected mode is addressed from the perspective of a power distribution system operator. Uncertainties in the electrical output of variable distributed energy resources and load demand due to forecasting errors are treated statistically by using empirical distributions. Scenarios for simulation are generated using statistics of actual data for solar and load demand forecast. Kantorovich distance measure is used for scenario reduction to maintain computational tractability of the problem. Discrete compromise programming is used for multi-criteria decision-analysis to obtain non-dominated dispatch solutions without generating a computationally expensive Pareto front. Two step look-ahead dynamic program routine is used for dispatch optimization of dispatchable, non-dispatchable solar, and energy storage asset. New performance metrics are developed for reserve management in microgrids using North American Electric Reliability Corporation (NERC) metrics and some previously developed metrics by this researcher. The economic dispatch problem is formulated as a constrained optimization problem with the new metric for reserve as a constraint. Optimization programs are implemented using MATLAB® and power system simulations are performed on standard IEEE 13-node test distribution feeder using the real-time simulation platform—RTDS®. Some potential future developments and applications of performance metrics are presented as future work. Advisors/Committee Members: Suryanarayanan, Siddharth (advisor), Chakraborty, Sudipta (committee member), Hovsapian, Rob O. (committee member), Young, Peter M. (committee member), Zimmerle, Daniel J. (committee member).

Subjects/Keywords: dispatch; microgrids; uncertainty; metrics; decision making; optimization

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Panwar, M. (2017). Operation of electric microgrids under uncertainty. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/181307

Chicago Manual of Style (16^th Edition):

Panwar, Mayank. “Operation of electric microgrids under uncertainty.” 2017. Doctoral Dissertation, Colorado State University. Accessed March 07, 2021. http://hdl.handle.net/10217/181307.

MLA Handbook (7^th Edition):

Panwar, Mayank. “Operation of electric microgrids under uncertainty.” 2017. Web. 07 Mar 2021.

Vancouver:

Panwar M. Operation of electric microgrids under uncertainty. [Internet] [Doctoral dissertation]. Colorado State University; 2017. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10217/181307.

Council of Science Editors:

Panwar M. Operation of electric microgrids under uncertainty. [Doctoral Dissertation]. Colorado State University; 2017. Available from: http://hdl.handle.net/10217/181307

RMIT University

18. Das, S. Autonomous power management of series-cascaded and hybrid microgrids.

Degree: 2019, RMIT University

URL: http://researchbank.rmit.edu.au/view/rmit:162977

► Microgrids with power electronics interfaced Distributed Generation units are gaining high popularity due to its zero emission characteristics. Control and coordination of these generation units… (more)

▼ Microgrids with power electronics interfaced Distributed Generation units are gaining high popularity due to its zero emission characteristics. Control and coordination of these generation units are the most crucial factors that will determine the effective utilisation and flexibility of microgrids. Conventional microgrid structure with droop controlled parallel distributed generation units are being replaced by the series-cascaded structure due to its reduced conversion stages and inherent harmonic sharing capability. This research work first aims to develop a microgrid architecture integrating dispatchable and non-dispatchable distributed generation units in a series-cascaded manner. Existing control strategies for cascaded microgrids focus on dispatchable type generation only. However, adequate power sharing and voltage regulation of a microgrid containing mixed dispatchable and non-dispatchable cascaded generation units demand new control approaches to achieve operational performance and reliability comparable to the conventional parallel-topology microgrid. To ensure maximum utilisation of non-dispatchable units a novel microgrid architecture formed by a dispatchable master unit followed by a set of non-dispatchable slave photovoltaic units in a series-cascaded manner is developed. A fully decentralised control scheme is proposed, which achieves autonomous power balancing and voltage regulation, ensures full utilisation of non-dispatchable generation units, and allows surplus power curtailment under light load conditions. Further, this research work aims to extend the series topological arrangement to form a hybrid microgrid, where low voltage converters are cascaded as a string unit to achieve rated output voltage, and these strings are then paralleled to obtain higher redundancy and power rating. The extension of the arrangement to a hybrid microgrid requires the development of new control strategies, since existing schemes cannot be applied in their original form. As of now hybrid microgrids are controlled using either distributed or centralised schemes to achieve accurate power sharing among the distributed generation units at the cost of complex communication infrastructure. Therefore, a new control scheme is proposed for the hybrid microgrid which aims to achieve accurate power sharing among the paralleled units while maintaining adequate synchronisation among the cascaded converters without any communication link. Fundamental concepts as well as mathematical and simulation models of the existing and proposed control schemes are presented. All the proposed control strategies are validated through extensive simulation results and the series-cascaded microgrid control is validated through matching simulation and experimental results.

Subjects/Keywords: Fields of Research; series-cascaded microgrids; hybrid microgrids; non-dispatchable units; decentralised control; power curtailment

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Das, S. (2019). Autonomous power management of series-cascaded and hybrid microgrids. (Thesis). RMIT University. Retrieved from http://researchbank.rmit.edu.au/view/rmit:162977

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Das, S. “Autonomous power management of series-cascaded and hybrid microgrids.” 2019. Thesis, RMIT University. Accessed March 07, 2021. http://researchbank.rmit.edu.au/view/rmit:162977.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Das, S. “Autonomous power management of series-cascaded and hybrid microgrids.” 2019. Web. 07 Mar 2021.

Vancouver:

Das S. Autonomous power management of series-cascaded and hybrid microgrids. [Internet] [Thesis]. RMIT University; 2019. [cited 2021 Mar 07]. Available from: http://researchbank.rmit.edu.au/view/rmit:162977.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Das S. Autonomous power management of series-cascaded and hybrid microgrids. [Thesis]. RMIT University; 2019. Available from: http://researchbank.rmit.edu.au/view/rmit:162977

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

19. Tamizi, Khaled. Control of multicellular power converters for microgrids and renewable energies applications : Commande de convertisseurs multicellulaires destinés aux microgrids et aux systèmes d'énergies renouvelables.

Degree: Docteur es, Génie électrique, 2018, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2018SACLS212

►

Les convertisseurs multicellulaires DC-DC sont utilisés dans de nombreuses applications et de nombreux systèmes électriques. Ils présentent un intérêt particulier pour des applications spécifiques liées… (more)

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Les convertisseurs multicellulaires DC-DC sont utilisés dans de nombreuses applications et de nombreux systèmes électriques. Ils présentent un intérêt particulier pour des applications spécifiques liées aux énergies renouvelables et aux Microgrids. Leur principal avantage provient de leur capacité intrinsèque à réduire les ondulations liées au découpage des grandeurs électriques en entrée et en sortie du système de conversion. Cette propriété intéressante au niveau système peut être étendue au fonctionnement interne du convertisseur en adjoignant à ce dernier un élément de filtrage par inductances couplées magnétiquement. Ce composant permet d’étendre les propriétés externes de réduction des ondulations au fonctionnement de chaque cellule du convertisseur. Il permet également d’augmenter la dynamique propre du système de conversion. Ces propriétés permettent de réduire significativement le niveau et le volume de filtrage en entrée et sortie du convertisseur et donc d’augmenter de manière importante sa compacité et son rendement énergétique. Cependant, l’ajout de ce dispositif magnétique induit, de par le couplage des équations du système qu’il provoque, une complexification du contrôle de la structure associée également à la nécessité d’augmenter le nombre de capteurs.Ce travail de thèse a pour objectif d’établir et d’évaluer différents modes de contrôle pour les convertisseurs multicellulaires DC-DC. Le point commun aux méthodes proposées est de permettre la gestion aussi bien des grandeurs externes au convertisseur que des grandeurs internes constituées par les courants de circulation entre cellules connectées en parallèle. Ces composantes de courant sont également nommées « courants différentiels ». Trois types de contrôle sont étudiés : Pour le premier, des correcteurs linéaires classiques sont utilisés conjointement avec des techniques de découplage des équations du système. La robustesse de ces méthodes de contrôle vis-à-vis des incertitudes sur la connaissance des paramètres du système fait l’objet d’un focus particulier dans cette partie du travail. Pour le second, une version modifiée de la technique de commande connue sous le nom Model Predictive Control est proposée. Celle-ci permet d’assurer le contrôle de la fréquence de commutation et l’entrelacement des commandes PWM des cellules. Pour le troisième mode, nous étudions une méthode basée sur le contrôle vectoriel direct des courants différentiels.Une implantation sur un système numérique équipé d’un micro-processeur et d’un FPGA est proposée et permet de valider les résultats de l’étude théorique.

The interleaved multicell DC-DC power converters are broadly used in many applications and systems especially in renewable energy systems and microgrids. They reduce the current ripple at the input and output side. Also, an implemented magnetic coupling between cells leads to reduce the current ripple in each of them and to improve the dynamical electrical behavior. These properties involve a reduction on the filtering requirements and so, allow to improve…

Advisors/Committee Members: Labouré, Eric (thesis director), Bethoux, Olivier (thesis director).

Subjects/Keywords: Electronique de puissance; Commande; Énergie renouvelable; Microgrids; MPC; Power Electronics; Control; Renewable Energy; Microgrids; MPC

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tamizi, K. (2018). Control of multicellular power converters for microgrids and renewable energies applications : Commande de convertisseurs multicellulaires destinés aux microgrids et aux systèmes d'énergies renouvelables. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2018SACLS212

Chicago Manual of Style (16^th Edition):

Tamizi, Khaled. “Control of multicellular power converters for microgrids and renewable energies applications : Commande de convertisseurs multicellulaires destinés aux microgrids et aux systèmes d'énergies renouvelables.” 2018. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed March 07, 2021. http://www.theses.fr/2018SACLS212.

MLA Handbook (7^th Edition):

Tamizi, Khaled. “Control of multicellular power converters for microgrids and renewable energies applications : Commande de convertisseurs multicellulaires destinés aux microgrids et aux systèmes d'énergies renouvelables.” 2018. Web. 07 Mar 2021.

Vancouver:

Tamizi K. Control of multicellular power converters for microgrids and renewable energies applications : Commande de convertisseurs multicellulaires destinés aux microgrids et aux systèmes d'énergies renouvelables. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2018. [cited 2021 Mar 07]. Available from: http://www.theses.fr/2018SACLS212.

Council of Science Editors:

Tamizi K. Control of multicellular power converters for microgrids and renewable energies applications : Commande de convertisseurs multicellulaires destinés aux microgrids et aux systèmes d'énergies renouvelables. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2018. Available from: http://www.theses.fr/2018SACLS212

20. Pajot, Camille. OMEGAlpes : outil d’aide à la décision pour une planification énergétique multi-fluides optimale à l’échelle des quartiers : OMEGAlpes : decision support tool for an optimal multi-carriers energy planning at the district scale.

Degree: Docteur es, Génie électrique, 2019, Université Grenoble Alpes (ComUE)

URL: http://www.theses.fr/2019GREAT042

►

Majoritairement responsable du dérèglement climatique, le secteur de l’énergie est particulièrement visé et des politiques de transition énergétique voient le jour, en s’appuyant sur les… (more)

▼

Majoritairement responsable du dérèglement climatique, le secteur de l’énergie est particulièrement visé et des politiques de transition énergétique voient le jour, en s’appuyant sur les principes de sobriété, d’efficacité et de productions énergétiques bas-carbone. Les systèmes énergétiques doivent s’adapter rapidement à ces changements et être conçus de façon à intégrer une approche multi-énergies et des stratégies de gestion de la demande. Dans ce contexte, cette thèse propose de développer une méthodologie et un outil d’aide à la décision associé, offrant aux différents acteurs énergétiques une aide pour concevoir, dimensionner, et gérer les systèmes énergétiques au niveau des quartiers. En premier lieu, une approche de planification énergétique par optimisation sera développée. Une méthodologie, basée sur des bilans de puissance sera ensuite présentée, pour traiter de façon générique des cas d’étude de planification énergétique à l’échelle du quartier, puis illustrée sur un cas de valorisation de chaleur fatale. Des modèles de consommation basés sur des approches statistiques seront ensuite employés, afin de représenter des scénarios de flexibilité temporelle (décalage d’usages). Une alternative à cette approche par les données, basée sur la modélisation physique des bâtiments, sera ensuite présentée à travers l’utilisation de modèles thermiques réduits. Enfin, l’ensemble de ces modèles sera capitalisé au sein d’un outil de génération automatique de modèles d’optimisation, s’appuyant sur une méthodologie de construction de modèles énergétiques à partir d’éléments génériques. Le développement de cet outil open source, en langage Python, et le principe de génération automatique des modèles sera enfin détaillé.

Mostly responsible for climate change, the energy sector is particularly targeted and energy transition policies are emerging, based on the principles of sobriety, efficiency and low-carbon energy production. Energy systems need to adapt quickly to these changes and be designed to consider a multi-energy approach and demand-side management strategies. In this context, this thesis proposes to develop a methodology and an associated decision support tool OMEGAlpes, offering the different energy actors an aid to design, size, and manage energy systems at the district level. First, an optimal energy planning approach will be developed. A methodology, based on power balances will then be presented, to treat generically study cases about energy planning at the district scale, and then illustrated on a case of wasted heat recycling. Consumption models based on statistical approaches will then be used to represent temporal flexibility scenarios (load shifting). An alternative to this data approach, based on the physical modeling of buildings, will then be presented through the use of reduced thermal models. Finally, all of these models will be capitalized within an automatic generation tool for optimization models, based on a methodology for building energy models from generic elements. The development of this…

Advisors/Committee Members: Delinchant, Benoit (thesis director), Maréchal, Yves (thesis director).

Subjects/Keywords: Quartiers énergie positive; Microgrids; Bâtiment intelligent; Flexibilité; Milp; Optimisation; Positive energy distrincts; Microgrids; Smart building; Flexibility; Milp; Optimization; 620

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pajot, C. (2019). OMEGAlpes : outil d’aide à la décision pour une planification énergétique multi-fluides optimale à l’échelle des quartiers : OMEGAlpes : decision support tool for an optimal multi-carriers energy planning at the district scale. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2019GREAT042

Chicago Manual of Style (16^th Edition):

Pajot, Camille. “OMEGAlpes : outil d’aide à la décision pour une planification énergétique multi-fluides optimale à l’échelle des quartiers : OMEGAlpes : decision support tool for an optimal multi-carriers energy planning at the district scale.” 2019. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed March 07, 2021. http://www.theses.fr/2019GREAT042.

MLA Handbook (7^th Edition):

Pajot, Camille. “OMEGAlpes : outil d’aide à la décision pour une planification énergétique multi-fluides optimale à l’échelle des quartiers : OMEGAlpes : decision support tool for an optimal multi-carriers energy planning at the district scale.” 2019. Web. 07 Mar 2021.

Vancouver:

Pajot C. OMEGAlpes : outil d’aide à la décision pour une planification énergétique multi-fluides optimale à l’échelle des quartiers : OMEGAlpes : decision support tool for an optimal multi-carriers energy planning at the district scale. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2019. [cited 2021 Mar 07]. Available from: http://www.theses.fr/2019GREAT042.

Council of Science Editors:

Pajot C. OMEGAlpes : outil d’aide à la décision pour une planification énergétique multi-fluides optimale à l’échelle des quartiers : OMEGAlpes : decision support tool for an optimal multi-carriers energy planning at the district scale. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2019. Available from: http://www.theses.fr/2019GREAT042

Cape Peninsula University of Technology

21. Du Plooy, Henri. Comparative strategies for efficient control and storage of renewable energy in a microgrid .

Degree: 2016, Cape Peninsula University of Technology

URL: http://etd.cput.ac.za/handle/20.500.11838/2486

► Power fluctuations in a microgrid are caused by disturbances due to the connection and disconnection of Distributed Generators (DG’s), as well as the irregular input… (more)

Subjects/Keywords: Renewable energy sources; Energy storage; Microgrids (Smart power grids)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Du Plooy, H. (2016). Comparative strategies for efficient control and storage of renewable energy in a microgrid . (Thesis). Cape Peninsula University of Technology. Retrieved from http://etd.cput.ac.za/handle/20.500.11838/2486

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Du Plooy, Henri. “Comparative strategies for efficient control and storage of renewable energy in a microgrid .” 2016. Thesis, Cape Peninsula University of Technology. Accessed March 07, 2021. http://etd.cput.ac.za/handle/20.500.11838/2486.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Du Plooy, Henri. “Comparative strategies for efficient control and storage of renewable energy in a microgrid .” 2016. Web. 07 Mar 2021.

Vancouver:

Du Plooy H. Comparative strategies for efficient control and storage of renewable energy in a microgrid . [Internet] [Thesis]. Cape Peninsula University of Technology; 2016. [cited 2021 Mar 07]. Available from: http://etd.cput.ac.za/handle/20.500.11838/2486.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Du Plooy H. Comparative strategies for efficient control and storage of renewable energy in a microgrid . [Thesis]. Cape Peninsula University of Technology; 2016. Available from: http://etd.cput.ac.za/handle/20.500.11838/2486

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

UCLA

22. Huang, Rui. Integration of Renewable Distributed Energy Resources into Microgrids.

Degree: Mechanical Engineering, 2015, UCLA

URL: http://www.escholarship.org/uc/item/2m37f7pv

► Although the existing traditional power grid can maintain an instantaneous balance between supply and demand, it is constantly facing many problems such as energy crisis,… (more)

Subjects/Keywords: Mechanical engineering; Distributed Generation; Microgrids; Renewable Energy Resources

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Huang, R. (2015). Integration of Renewable Distributed Energy Resources into Microgrids. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/2m37f7pv

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Huang, Rui. “Integration of Renewable Distributed Energy Resources into Microgrids.” 2015. Thesis, UCLA. Accessed March 07, 2021. http://www.escholarship.org/uc/item/2m37f7pv.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Huang, Rui. “Integration of Renewable Distributed Energy Resources into Microgrids.” 2015. Web. 07 Mar 2021.

Vancouver:

Huang R. Integration of Renewable Distributed Energy Resources into Microgrids. [Internet] [Thesis]. UCLA; 2015. [cited 2021 Mar 07]. Available from: http://www.escholarship.org/uc/item/2m37f7pv.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Huang R. Integration of Renewable Distributed Energy Resources into Microgrids. [Thesis]. UCLA; 2015. Available from: http://www.escholarship.org/uc/item/2m37f7pv

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

23. Martinez Bolaños, Julio Romel. Análise da estabilidade dinâmica em minirredes com controle autônomo de frequência e tensão.

Degree: PhD, Sistemas de Potência, 2012, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3143/tde-03072013-144136/ ;

►

Cargas e fontes elétricas de pequeno porte, integradas através de alimentadores de distribuição de baixa tensão, agrupadas e gerenciadas de tal maneira que se comportem… (more)

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Cargas e fontes elétricas de pequeno porte, integradas através de alimentadores de distribuição de baixa tensão, agrupadas e gerenciadas de tal maneira que se comportem como uma única entidade controlável dentro de um sistema de potência e com a capacidade de operar de forma paralela ou isolada da rede elétrica convencional, constituem-se em um novo tipo de sistema elétrico conhecido como Minirrede. Esta tese aborda o problema relacionado à estabilidade dinâmica de Minirredes com controle autônomo de frequência e tensão, quando operadas de forma isolada da rede convencional. As minirredes analisadas são compostas por combinações de fontes elétricas convencionais e fontes alternativas que não geram naturalmente em 50 ou 60 Hz, sendo necessária a utilização de inversores para sua conexão com a rede elétrica. A análise se realiza no espaço de estados com metodologias baseadas nas teorias que envolvem os autovalores e autovetores da matriz de estado. Para isto, modelos no espaço de estados são desenvolvidos para cada componente da Minirrede, mantendo um compromisso entre precisão e complexidade. O caráter analítico da análise permite investigar a relação entre a estabilidade da Minirrede e os parâmetros do sistema, tais como ganhos dos controladores, dimensionamento da rede, configurações de geração, entre outros. Análises complementares de sensibilidade dos autovalores aos parâmetros elétricos do sistema permitem inferir o comportamento dinâmico de diversas configurações de Minirredes, obtendo-se importantes conclusões à respeito. Os resultados analíticos são verificados através de simulação computacional no ambiente Simulink/Matlab®.

Electrical loads and small power sources, integrated through low voltage distribution feeders, managed in such a way to behave as one controllable entity within in a power system, and with the ability to operate connected or non-connected to the conventional power system is a new kind of electrical system known as Microgrid. This thesis addresses the problem related to dynamic stability of island Microgrids with autonomous control of frequency and voltage. The Microgrids analyzed are composed of combinations of conventional and alternative power sources that do not generate electricity naturally in 50 or 60 Hz, therefore inverters are needed to provide AC network interface. The analysis is performed in the state space with methodologies based on theories involving the eigenvalues and eigenvectors of the state matrix. For this, state-space models are developed for each component of Microgrid, maintaining a compromise between accuracy and complexity. The analytical nature of this study allows investigating the relationship between the stability of Microgrid and parameters of the system, such as controller gains, network design, generation architectures, among others. Complementary sensitivity analyzes of eigenvalues to the electrical parameters of the system allow us to infer the dynamic behavior of various configurations of Microgrids, obtaining important conclusions on the matter. The…

Advisors/Committee Members: Fadigas, Eliane Aparecida Faria Amaral.

Subjects/Keywords: Dynamic stability; Estabilidade dinâmica; Inversores; Inverters; Microgrids; Minirrede

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Martinez Bolaños, J. R. (2012). Análise da estabilidade dinâmica em minirredes com controle autônomo de frequência e tensão. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3143/tde-03072013-144136/ ;

Chicago Manual of Style (16^th Edition):

Martinez Bolaños, Julio Romel. “Análise da estabilidade dinâmica em minirredes com controle autônomo de frequência e tensão.” 2012. Doctoral Dissertation, University of São Paulo. Accessed March 07, 2021. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-03072013-144136/ ;.

MLA Handbook (7^th Edition):

Martinez Bolaños, Julio Romel. “Análise da estabilidade dinâmica em minirredes com controle autônomo de frequência e tensão.” 2012. Web. 07 Mar 2021.

Vancouver:

Martinez Bolaños JR. Análise da estabilidade dinâmica em minirredes com controle autônomo de frequência e tensão. [Internet] [Doctoral dissertation]. University of São Paulo; 2012. [cited 2021 Mar 07]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3143/tde-03072013-144136/ ;.

Council of Science Editors:

Martinez Bolaños JR. Análise da estabilidade dinâmica em minirredes com controle autônomo de frequência e tensão. [Doctoral Dissertation]. University of São Paulo; 2012. Available from: http://www.teses.usp.br/teses/disponiveis/3/3143/tde-03072013-144136/ ;

Texas A&M University

24. Chen, Bo. Black Start Restoration for Electric Distribution Systems and Microgrids.

Degree: PhD, Electrical Engineering, 2017, Texas A&M University

URL: http://hdl.handle.net/1969.1/161665

► Modern power systems face increased risk of wide area blackouts caused by extreme weather events, man-made errors, cyber-attacks, and other threats. In order to promptly… (more)

▼ Modern power systems face increased risk of wide area blackouts caused by extreme weather events, man-made errors, cyber-attacks, and other threats. In order to promptly restore power after a blackout, an efficient black start restoration methodology should be developed. Emerging smart grid technologies such as remote control switches (RCSs) and distributed energy resources (DERs) present significant potential that can be leveraged for developing advanced black start restoration methodologies. In this dissertation research, a new black start restoration (BSR) method, which could be used in distribution management system (DMS) or microgrid control center (MGCC), was presented. The BSR problem was formulated as a dynamic optimization problem in order to coordinate the dispatching actions of DERs and the switching actions of RCSs over multiple decision time steps. Several linearization techniques were presented to reformulate the dynamic optimization model as a mixed-integer linear programming (MILP) model. The rolling-horizon functionality was used to reduce the computation time. The MILP mode was simulated in MATLAB® using YALMIP Toolbox and solved in the IBM CPLEXTM solver. Several case studies were conducted to illustrate how the new BSR method works on the modified IEEE 13 node and 123 node systems installed with dispatchable distributed generations (DGs), renewable DGs, energy storage systems (ESSs), and RCSs. OpenDSS was used to simulate power flow, and PSCAD™/EMTDC™ was used to simulate frequency response. The new BSR method was able to generate black start sequences in response to varying operating conditions such as balanced and unbalanced conditions, cold load pick up (CLPU) conditions, and different fault scenarios. The performance of the new BSR method was analyzed through extensive case studies. It was observed that using properly selected rolling-horizon parameters could reduce the computation time and achieve near-optimal solutions. However, some operating conditions resulted in infeasible solutions, such as limited DG ramp rate and capacity, heavy loading conditions, and excessive fluctuation of renewable DG outputs and load demands. The new BSR method can be further improved by incorporating a method for determining the rolling-horizon parameters without conducting exhaustive case studies and developing an integrated structure to coordinate with DG primary controls. Advisors/Committee Members: Butler-Purry, Karen (advisor), Xie, Le (committee member), Hou, I-Hong (committee member), Butenko, Sergiy (committee member).

Subjects/Keywords: black start restoration; distribution systems; microgrids; dynamic optimization

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APA (6^th Edition):

Chen, B. (2017). Black Start Restoration for Electric Distribution Systems and Microgrids. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/161665

Chicago Manual of Style (16^th Edition):

Chen, Bo. “Black Start Restoration for Electric Distribution Systems and Microgrids.” 2017. Doctoral Dissertation, Texas A&M University. Accessed March 07, 2021. http://hdl.handle.net/1969.1/161665.

MLA Handbook (7^th Edition):

Chen, Bo. “Black Start Restoration for Electric Distribution Systems and Microgrids.” 2017. Web. 07 Mar 2021.

Vancouver:

Chen B. Black Start Restoration for Electric Distribution Systems and Microgrids. [Internet] [Doctoral dissertation]. Texas A&M University; 2017. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1969.1/161665.

Council of Science Editors:

Chen B. Black Start Restoration for Electric Distribution Systems and Microgrids. [Doctoral Dissertation]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/161665

Penn State University

25. Chandrayan, Ameya Pradeep. Multi-agent Based Intelligent Distributed Control Of A Hardware-in-the-loop Microgrid Test-bed .

Degree: 2015, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/26265

► The structure of conventional electric power systems is changing its course from few centralized entities to numerous distributed energy systems, leading to technological challenges in… (more)

▼ The structure of conventional electric power systems is changing its course from few centralized entities to numerous distributed energy systems, leading to technological challenges in three key aspects – sustainability, flexibility, and reliability. Penetration of renewable energy resources into the power system seems to magnify these challenges, and requires tremendous efforts to develop new control and protection methodologies, and market policies. Various interest groups including the government, electric utilities, academic and research institutions, as well as consumers are actively working towards the goal of a new intelligent grid – ‘smart grid’. This research focuses on the development of an operation and control scheme for a laboratory-scale hardware-in-the-loop microgrid system. The main features of this microgrid system include integrated renewable energy systems, battery storage, smart loads to realize demand-side energy management for various load patterns, advanced digital relays, as well as smart energy metering devices interfaced through various communication channels and protocols. Conventional generating units synchronized to an AC bus are coupled to the energy storage and the PV system through a DC bus. In real-life microgrid systems, various synchronous, asynchronous and static sources of power generation are dispersed geographically but relatively close to the demand side. An implementation of conventional power grid control and operation methods would presumably demand very high speed central processing platforms to perform extensive computations required for such a dispersed system. On the other hand, distributed control methods allocate these number crunching operations to asynchronous and autonomous control platforms, which operate in harmony to provide reliability, flexibility and resiliency in the microgrid environment. Therefore, the distributed approach for control using Multi-Agent System (MAS) concepts becomes the primary focus of this research. Various agents in the MAS platform offer advantages of being autonomous or self-organized, social, and pro-active as opposed to the existing distributed control systems. The framework for MAS is designed using Java Agent DEvelopment (JADE), a FIPA-standard compliant and open source java based platform. The need for inter-operability between different vendors is also arising as a result of growing activities and interactions between customers, market operators and utilities. The OPC (OLE for Process Control) Classic specifications, inherited from Object Linking and Embedding (OLE) – a proprietary technology developed by Microsoft, offer a complete range of solutions for process data access (DA), alarms & events (A&E), and historical data access (HDA) from different proprietary PLC and SCADA systems. In this research, the OPC DA (Data Access) Server is employed to act as an interface between PLC systems tied to the microgrid hardware layer and open source JADE platform which resides on the computer platform. Advisors/Committee Members: Peter Idowu, Thesis Advisor/Co-Advisor, Scott Van Tonningen, Thesis Advisor/Co-Advisor, Seth Wolpert, Thesis Advisor/Co-Advisor, Jeremy Joseph Blum, Thesis Advisor/Co-Advisor.

Subjects/Keywords: Smart Grids; Microgrids; Multi-agent system; distributed control

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APA (6^th Edition):

Chandrayan, A. P. (2015). Multi-agent Based Intelligent Distributed Control Of A Hardware-in-the-loop Microgrid Test-bed . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/26265

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chandrayan, Ameya Pradeep. “Multi-agent Based Intelligent Distributed Control Of A Hardware-in-the-loop Microgrid Test-bed .” 2015. Thesis, Penn State University. Accessed March 07, 2021. https://submit-etda.libraries.psu.edu/catalog/26265.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chandrayan, Ameya Pradeep. “Multi-agent Based Intelligent Distributed Control Of A Hardware-in-the-loop Microgrid Test-bed .” 2015. Web. 07 Mar 2021.

Vancouver:

Chandrayan AP. Multi-agent Based Intelligent Distributed Control Of A Hardware-in-the-loop Microgrid Test-bed . [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Mar 07]. Available from: https://submit-etda.libraries.psu.edu/catalog/26265.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chandrayan AP. Multi-agent Based Intelligent Distributed Control Of A Hardware-in-the-loop Microgrid Test-bed . [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/26265

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Toronto

26. Singh, Amrit. Phasor Measurement Unit Enabled Power Dispatch and Autonomous Black Start of AC Microgrids.

Degree: 2018, University of Toronto

URL: http://hdl.handle.net/1807/89531

►

The aim of this thesis is to develop a mathematical model and control for black start and power dispatch of AC microgrids powered by converter… (more)

Subjects/Keywords: ac microgrids; black start; Phasor measurement units; 0544

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APA (6^th Edition):

Singh, A. (2018). Phasor Measurement Unit Enabled Power Dispatch and Autonomous Black Start of AC Microgrids. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/89531

Chicago Manual of Style (16^th Edition):

Singh, Amrit. “Phasor Measurement Unit Enabled Power Dispatch and Autonomous Black Start of AC Microgrids.” 2018. Masters Thesis, University of Toronto. Accessed March 07, 2021. http://hdl.handle.net/1807/89531.

MLA Handbook (7^th Edition):

Singh, Amrit. “Phasor Measurement Unit Enabled Power Dispatch and Autonomous Black Start of AC Microgrids.” 2018. Web. 07 Mar 2021.

Vancouver:

Singh A. Phasor Measurement Unit Enabled Power Dispatch and Autonomous Black Start of AC Microgrids. [Internet] [Masters thesis]. University of Toronto; 2018. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1807/89531.

Council of Science Editors:

Singh A. Phasor Measurement Unit Enabled Power Dispatch and Autonomous Black Start of AC Microgrids. [Masters Thesis]. University of Toronto; 2018. Available from: http://hdl.handle.net/1807/89531

Victoria University of Wellington

27. Akinyele, Daniel. Techno-Economic and Life-Cycle Impact Analysis of Solar Photovoltaic Microgrid Systems for Off-Grid Communities.

Degree: 2016, Victoria University of Wellington

URL: http://hdl.handle.net/10063/5450

► This thesis proposes Solar Photovoltaic Microgrids (SPMs) for six different remote communities in Nigeria, one from each of the country’s geopolitical zones. The research analysis… (more)

▼ This thesis proposes Solar Photovoltaic Microgrids (SPMs) for six different remote communities in Nigeria, one from each of the country’s geopolitical zones. The research analysis is presented based on the basic load demand of 24 households within each of the selected communities. The arrangements of the houses are obtained from the community’s layout provided by a building consortium. The study first presents the intended users’ basic energy needs and their daily energy usage. The available solar energy resources of the different locations are also carefully examined, in relation to their disparities, intermittent characteristics and seasonal variations. The research also emphasises the possibility of load growth. With such consideration, more practical electrification solutions can be achieved. The study considers users’ electricity demand growth of 25 to 75% of the baseline value of 175 kWh/d. The photovoltaic microgrid systems are modelled in the DIgSILENT PowerFactory environment. The lengths of the lines running from the electric power plant to the households are obtained from the community’s layout. This information is included in the model, coupled with the solar energy data and the technical configurations of the PV arrays. The effectiveness of the proposed SPMs is evaluated by first comparing the techno-economic and environmental assessment results with those of a diesel power plant. This is also done by comparing the results with some existing related outputs in the literature, which are reported for solar photovoltaic systems in different regions of the world. The research results indicate that it is possible to develop practical, cost-effective and reliable clean energy systems for the specified communities based on solar photovoltaic technology. The SPMs have the capability to compete with conventional electricity options – diesel/petrol generators with which some households are already familiar. Furthermore, even though the diesel plant’s initial capital cost is as low as ~ 10 - 17% of those of the SPMs, its life cycle costs are ~ 2 - 2.3 times the life cycle costs of the proposed SPMs for the six locations. Over the 25-year project life span, the SPMs clearly provide a significant economic benefit. The battery average SoC probability distribution values of >98% above the minimum set point of 30% were also achieved. The reliability indices, i.e. LOEP of < 5%, availability of > 95% achieved in this study for the SPMs, are also comparable with the existing results in the literature. The SPM’s estimated emission rate is ~57 gCO₂/kWh, which is lower than the values of 576 - 695 gCO₂/kWh obtained for diesel systems. The SPM system’s GWP ranges from 3,409 to 7,945 kgCO₂-eq. Also, the system’s EPBTs and EROIs range from 1.11 to 1.6 years and 15.63 to 22.52, respectively, of the specified locations. The proposed SPM model is based on the global engineering standards and best practices and has very considerable practical applications. These can provide a reference point for governments, policymakers,… Advisors/Committee Members: Rayudu, Ramesh, Nair, Nirmal, Tan, Rodney.

Subjects/Keywords: Solar microgrids; Solar PV life-cycle impact; Techno-economic analysis

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Akinyele, D. (2016). Techno-Economic and Life-Cycle Impact Analysis of Solar Photovoltaic Microgrid Systems for Off-Grid Communities. (Doctoral Dissertation). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/5450

Chicago Manual of Style (16^th Edition):

Akinyele, Daniel. “Techno-Economic and Life-Cycle Impact Analysis of Solar Photovoltaic Microgrid Systems for Off-Grid Communities.” 2016. Doctoral Dissertation, Victoria University of Wellington. Accessed March 07, 2021. http://hdl.handle.net/10063/5450.

MLA Handbook (7^th Edition):

Akinyele, Daniel. “Techno-Economic and Life-Cycle Impact Analysis of Solar Photovoltaic Microgrid Systems for Off-Grid Communities.” 2016. Web. 07 Mar 2021.

Vancouver:

Akinyele D. Techno-Economic and Life-Cycle Impact Analysis of Solar Photovoltaic Microgrid Systems for Off-Grid Communities. [Internet] [Doctoral dissertation]. Victoria University of Wellington; 2016. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10063/5450.

Council of Science Editors:

Akinyele D. Techno-Economic and Life-Cycle Impact Analysis of Solar Photovoltaic Microgrid Systems for Off-Grid Communities. [Doctoral Dissertation]. Victoria University of Wellington; 2016. Available from: http://hdl.handle.net/10063/5450

Universidad de Chile

28. Marín Collazos, Luis Gabriel. Hierarchical energy management system based on fuzzy prediction intervals for operation and coordination of microgrids.

Degree: 2018, Universidad de Chile

URL: http://repositorio.uchile.cl/handle/2250/170000

► The integration of large numbers of Distributed Energy Resources (DERs) into the distribution system could take place either by reinforcement of the existing network assets,… (more)

▼ The integration of large numbers of Distributed Energy Resources (DERs) into the distribution system could take place either by reinforcement of the existing network assets, or the incorporation of active management of flexible resources into different sections of the distribution network. For active management of a distribution network, the design of control strategies is necessary for an efficient and reliable large-scale integration of DERs. Besides the benefit of supporting the use of renewable energy sources, DERs play an important role in improving the resilience and sustainability of the electricity distribution system and also in the generation of new market opportunities. In this thesis, the active management of DERs is proposed using a hierarchical energy management system (EMS) applied to "Energy Communities". Energy communities are a concept which allows different end users to cooperate in their energy interactions with the aim of maximising their self-consumption, minimising energy costs, reducing peak power levels or a combination of these and other beneficial goals as well. The hierarchical EMS proposed allows incorporating mechanisms to ensure both the realisation of short-term power balancing objectives and long-term energy management, benefiting the microgrid owner and the distribution network operator. The hierarchical EMS is designed in two levels: main grid level and microgrid level. At the microgrid level, a real-time local rule-based controller is proposed and at the higher level, a Robust model predictive control (MPC) is used to manage the uncertainty associated with renewable distributed generation and electricity demand. The uncertainty is incorporated into the Robust MPC controller based on fuzzy prediction interval models in order to help the system to be prepared for errors in the predictions that might yield sub-optimal decisions. Several case studies are used to test the performance of the hierarchical EMS for the operation and coordination of microgrids. Robust EMS based on fuzzy prediction interval models is compared to the deterministic EMS and with a basic EMS without energy storage system (ESS). The results show that the deterministic and Robust EMSs provide improvements over the case without ESS, as they offer mechanisms for efficient energy management. The incorporation of an ESS into the energy community benefits both the end user, by reducing energy cost, and the distribution network operator, by limiting the peak power levels and enabling increased penetration of distributed generation (DG). Additionally, the hierarchical EMS is able to keep the community power flow close to the reference power defined by the higher level controller with minimum energy cost, among other benefits. Finally, end users operating as Energy Communities can optimise the use of DG and the size of the ESS required.

Subjects/Keywords: Distribución de energía eléctrica; Redes eléctricas; Control predictivo; Control robusto; Microgrids

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APA (6^th Edition):

Marín Collazos, L. G. (2018). Hierarchical energy management system based on fuzzy prediction intervals for operation and coordination of microgrids. (Thesis). Universidad de Chile. Retrieved from http://repositorio.uchile.cl/handle/2250/170000

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Marín Collazos, Luis Gabriel. “Hierarchical energy management system based on fuzzy prediction intervals for operation and coordination of microgrids.” 2018. Thesis, Universidad de Chile. Accessed March 07, 2021. http://repositorio.uchile.cl/handle/2250/170000.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Marín Collazos, Luis Gabriel. “Hierarchical energy management system based on fuzzy prediction intervals for operation and coordination of microgrids.” 2018. Web. 07 Mar 2021.

Vancouver:

Marín Collazos LG. Hierarchical energy management system based on fuzzy prediction intervals for operation and coordination of microgrids. [Internet] [Thesis]. Universidad de Chile; 2018. [cited 2021 Mar 07]. Available from: http://repositorio.uchile.cl/handle/2250/170000.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Marín Collazos LG. Hierarchical energy management system based on fuzzy prediction intervals for operation and coordination of microgrids. [Thesis]. Universidad de Chile; 2018. Available from: http://repositorio.uchile.cl/handle/2250/170000

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Florida

29. January, Donnelle L. Managing Off-Grid Power Use for Solar Fueled Residences with Smart Appliances, Prices-to-Devices and IoT.

Degree: 2020, University of South Florida

URL: https://scholarcommons.usf.edu/etd/8231

► Electricity availability has a profound impact in day to day life. Activities such as lighting homes, charging cellphones, and running appliances all depend on electricity… (more)

▼ Electricity availability has a profound impact in day to day life. Activities such as lighting homes, charging cellphones, and running appliances all depend on electricity use. Around 1 billion people around the world do not have access to electricity, and the majority of these people hail from developing countries in remote areas. Moreover, many of these remote areas lack utility grid access due to the infeasible cost of extending the grid to remote communities. To combat this, various projects on microgrids have been implemented in order to distribute power to these off-grid areas. Nanogrids are defined as “a single domain for voltage, price, reliability, quality, and administration.” These nanogrids are small microgrids that supply electricity to small remote buildings, given a limited electricity supply. Furthermore, nanogrids provide electricity to remote areas in order to increase the livelihood of people living in these unfavorable conditions. In this thesis, a new method is introduced to nanogrids using a locally determined price shared with devices with a goal to match electricity demand to locally generated supply to reduce the number of blackouts while maximining quality of experience in a nanogrid system. This thesis provides a review of current rural electrification projects done in developing countries, specifically remote areas in Africa and Asia. A series of algorithms is introduced that sets the price for available electricity use in a household, controlling the power consumption of electrical devices. The topics of Internet of Things (IoT), prices to devices and smart appliances are covered in enabling and implementing the proposed algorithms. A simulation model considers various parameters, including the battery charge and discharge rate, weather forecast, time of day, and time of year with respect to price allocation and power consumption. Simulation results display that the nanogrid paradigm using the controlled price algorithm eliminates the occurrence of blackouts in the rainy season with a reduced battery size (the worst case scenario) as compared to the nanogrid paradigm without price control. The outcome of this simulation suggests that the distribution of power using price control levels off the electricity demand with supply and allows for smaller battery and smaller solar panels all the while maintaining a high quality of experience. It shows that a remote household using an off-grid system, with control of electricity use through pricing given a limited power supply, can effectively allocate electricity use and match electricity supply with demand. This reduces the occurrence of unwanted blackouts, positively influencing the economical aspect of remote areas with respect to electricity access in developing countries.

Subjects/Keywords: Control Mechanism; Microgrids; Nanogrids; Rural Electrification; Supply and Demand; Computer Engineering

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APA (6^th Edition):

January, D. L. (2020). Managing Off-Grid Power Use for Solar Fueled Residences with Smart Appliances, Prices-to-Devices and IoT. (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/8231

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

January, Donnelle L. “Managing Off-Grid Power Use for Solar Fueled Residences with Smart Appliances, Prices-to-Devices and IoT.” 2020. Thesis, University of South Florida. Accessed March 07, 2021. https://scholarcommons.usf.edu/etd/8231.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

January, Donnelle L. “Managing Off-Grid Power Use for Solar Fueled Residences with Smart Appliances, Prices-to-Devices and IoT.” 2020. Web. 07 Mar 2021.

Vancouver:

January DL. Managing Off-Grid Power Use for Solar Fueled Residences with Smart Appliances, Prices-to-Devices and IoT. [Internet] [Thesis]. University of South Florida; 2020. [cited 2021 Mar 07]. Available from: https://scholarcommons.usf.edu/etd/8231.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

January DL. Managing Off-Grid Power Use for Solar Fueled Residences with Smart Appliances, Prices-to-Devices and IoT. [Thesis]. University of South Florida; 2020. Available from: https://scholarcommons.usf.edu/etd/8231

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

New Jersey Institute of Technology

30. Ji, Jingchu. Research on MPPT methods for photovoltaic system based on microgrid.

Degree: MSin Electrical Engineering - (M.S.), Electrical and Computer Engineering, 2013, New Jersey Institute of Technology

URL: https://digitalcommons.njit.edu/theses/175

► This thesis introduces some basic concepts about a microgrid. Then it discusses the structure of photovoltaic system (PVS) which contains a solar panel and… (more)

Subjects/Keywords: Microgrids; Photovoltaic system structure; Maximum power point tracking; Electrical and Electronics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ji, J. (2013). Research on MPPT methods for photovoltaic system based on microgrid. (Thesis). New Jersey Institute of Technology. Retrieved from https://digitalcommons.njit.edu/theses/175

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ji, Jingchu. “Research on MPPT methods for photovoltaic system based on microgrid.” 2013. Thesis, New Jersey Institute of Technology. Accessed March 07, 2021. https://digitalcommons.njit.edu/theses/175.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ji, Jingchu. “Research on MPPT methods for photovoltaic system based on microgrid.” 2013. Web. 07 Mar 2021.

Vancouver:

Ji J. Research on MPPT methods for photovoltaic system based on microgrid. [Internet] [Thesis]. New Jersey Institute of Technology; 2013. [cited 2021 Mar 07]. Available from: https://digitalcommons.njit.edu/theses/175.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ji J. Research on MPPT methods for photovoltaic system based on microgrid. [Thesis]. New Jersey Institute of Technology; 2013. Available from: https://digitalcommons.njit.edu/theses/175

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations