You searched for subject:(Adaptive Notch Filter).
Showing records 1 – 8 of
8 total matches.
No search limiters apply to these results.
Queens University
1.
Sadeghian Sorkhabi, Sadaf.
Microgrid Control Based on an Adaptive Notch Filter Power Processor
.
Degree: Electrical and Computer Engineering, 2016, Queens University
URL: http://hdl.handle.net/1974/14086 
► Recent environmental policies and higher needs of energy have led to the huge growth in renewable sources consumptions. Consuming renewable energies however, is not always…
(more)
▼ Recent environmental policies and higher needs of energy have led to the huge growth in renewable sources consumptions. Consuming renewable energies however, is not always free of challenges. Many studies have been done to have a reliable integration and localization of the distributed sources, which have evolved into microgrid concept. These studies are mainly focused on microgrid’s occurrence prediction methods, control schemes and their undeniable part, grid synchronization techniques. The main goal of the studies is to help the microgrid and their distributed sources to ride through the short disturbances in grid-connected and islanded modes. Disturbances and unplanned changes that occur to a microgrid result in voltage and frequency fluctuations. These fluctuations could have destructive effects on power equipments. Therefore the existence of a robust and reliable controller and synchronizer is a must in microgrids.
In this thesis, the focus is on synchronization techniques and control systems. Among different synchronization techniques including PLL-based methods and frequency adaptive methods, the Adaptive Notch Filter (ANF) is selected to be studied in more details. A controller design consisting of an ANF is then proposed to fixate the voltage and frequency of the system while islanded and to ensure the power generation sufficiency. Another important and critical task of the proposed controller is to prepare the islanded microgrid for transitioning to the grid-connected mode. The Fast and accurate synchronization technique is selected and a fast responding control system is proposed to achieve a smooth transition between the two modes.
The ANF synchronization technique along with the proposed PLL-less control design are modeled in Simulink/MATLAB, which their performances in a system with disturbances and occurrences are evaluated. Balanced and unbalanced loads are added to the system and the connection between the microgrid and the grid is established. In this thesis the accuracy of the proposed control system in different conditions is examined and simulation results are presented. The results show that balanced three phase voltages at a fixed frequency are achieved, which also ensures a smooth transition between two modes.
Subjects/Keywords: Adaptive Notch FIlter;
Synchronization;
Control;
Microgrid
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sadeghian Sorkhabi, S. (2016). Microgrid Control Based on an Adaptive Notch Filter Power Processor
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/14086
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sadeghian Sorkhabi, Sadaf. “Microgrid Control Based on an Adaptive Notch Filter Power Processor
.” 2016. Thesis, Queens University. Accessed December 12, 2019.
http://hdl.handle.net/1974/14086.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sadeghian Sorkhabi, Sadaf. “Microgrid Control Based on an Adaptive Notch Filter Power Processor
.” 2016. Web. 12 Dec 2019.
Vancouver:
Sadeghian Sorkhabi S. Microgrid Control Based on an Adaptive Notch Filter Power Processor
. [Internet] [Thesis]. Queens University; 2016. [cited 2019 Dec 12].
Available from: http://hdl.handle.net/1974/14086.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sadeghian Sorkhabi S. Microgrid Control Based on an Adaptive Notch Filter Power Processor
. [Thesis]. Queens University; 2016. Available from: http://hdl.handle.net/1974/14086
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Utah
2.
Jayanthmurthy, Chetan.
Analog adaptive notch filter: carrier canceler.
Degree: MS, Electrical & Computer Engineering, 2015, University of Utah
URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3544/rec/241
► This research work presents a novel way of realizing an adaptive noise canceler as a notch filter completely in the analog domain. The obvious advantage…
(more)
▼ This research work presents a novel way of realizing an adaptive noise canceler as a notch filter completely in the analog domain. The obvious advantage of usingan adaptive notch filter would be the capability of tracking the exact frequency of interference as well as the ability to control the width of the null. The device willhereafter be referred to as the carrier canceler, as it will be used to track and cancel a 54.1 MHz carrier used in the Telescope Array RAdar (TARA) project, in southernUtah, for the detection of cosmic rays.The carrier canceler operates on a dual 5V power supply. The circuit has two inputs: An input from a signal generator that feeds a clean 54.1 MHz carrier referenceand the second input, which is fed from the antenna at the receiver station of the TARA project. The circuit consists of a two tap Least Mean Square adaptive circuitthat tracks the carrier frequency and phase to generate a clean replica of the carrier.This replica is then subtracted from the received signal to remove the carrier from it.The circuit is first tested in controlled conditions in the laboratory and then tested in the field. The results show the circuit has a null depth of 45 dB or better and has a 3 dB bandwidth of 300 Hz. Implementation issues such as DC offset of the multiplier Integrated Circuit (IC) and phase shift of all the ICs are discussed and a solution to rectify them is proposed.
Subjects/Keywords: Adaptive filter; Analog filter; LMS; Noise canceler; Notch filter; TaraA
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jayanthmurthy, C. (2015). Analog adaptive notch filter: carrier canceler. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3544/rec/241
Chicago Manual of Style (16th Edition):
Jayanthmurthy, Chetan. “Analog adaptive notch filter: carrier canceler.” 2015. Masters Thesis, University of Utah. Accessed December 12, 2019.
http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3544/rec/241.
MLA Handbook (7th Edition):
Jayanthmurthy, Chetan. “Analog adaptive notch filter: carrier canceler.” 2015. Web. 12 Dec 2019.
Vancouver:
Jayanthmurthy C. Analog adaptive notch filter: carrier canceler. [Internet] [Masters thesis]. University of Utah; 2015. [cited 2019 Dec 12].
Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3544/rec/241.
Council of Science Editors:
Jayanthmurthy C. Analog adaptive notch filter: carrier canceler. [Masters Thesis]. University of Utah; 2015. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3544/rec/241
Loughborough University
3.
Wheeler, Paul T.
Adaptive notch filtering for tracking multiple complex sinusoid signals.
Degree: PhD, 2015, Loughborough University
URL: https://dspace.lboro.ac.uk/2134/17958
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658295
► This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse…
(more)
▼ This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse response adaptive notch filter capable of tracking multiple complex sinusoid signals. Adaptive notch filters are commonly used in: Radar, Sonar, and Communication systems, and have the ability to track the frequencies of real or complex sinusoid signals; thus removing noise from an estimate, and enhancing the performance of a system. This research programme began by implementing four currently proposed adaptive notch structures. These structures were simulated and compared: for tracking between two and four signals; however, in their current form they are only capable of tracking real sinusoid signals. Next, one of these structures is developed further, to facilitate the ability to track complex sinusoid signals. This original structure gives superior performance over Regalia's comparable structure under certain conditions, which has been proven by simulations and results. Complex adaptive notch filter structures generally contain two parameters: the first tracks a target frequency, then the second controls the adaptive notch filter's bandwidth. This thesis develops the notch filter, so that the bandwidth parameter can be adapted via a method of steepest ascent; and also investigates tracking complex-valued chirp signals. Lastly, stochastic search methods are considered; and particle swarm optimisation has been applied to reinitialise an adaptive notch filter, when tracking two signals; thus more quickly locating an unknown frequency, after the frequency of the complex sinusoid signal jumps.
Subjects/Keywords: 621.382; Complex adaptive notch filter; Notch bandwidth adaptation; Tracking multiple complex sinusoid signals
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wheeler, P. T. (2015). Adaptive notch filtering for tracking multiple complex sinusoid signals. (Doctoral Dissertation). Loughborough University. Retrieved from https://dspace.lboro.ac.uk/2134/17958 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658295
Chicago Manual of Style (16th Edition):
Wheeler, Paul T. “Adaptive notch filtering for tracking multiple complex sinusoid signals.” 2015. Doctoral Dissertation, Loughborough University. Accessed December 12, 2019.
https://dspace.lboro.ac.uk/2134/17958 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658295.
MLA Handbook (7th Edition):
Wheeler, Paul T. “Adaptive notch filtering for tracking multiple complex sinusoid signals.” 2015. Web. 12 Dec 2019.
Vancouver:
Wheeler PT. Adaptive notch filtering for tracking multiple complex sinusoid signals. [Internet] [Doctoral dissertation]. Loughborough University; 2015. [cited 2019 Dec 12].
Available from: https://dspace.lboro.ac.uk/2134/17958 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658295.
Council of Science Editors:
Wheeler PT. Adaptive notch filtering for tracking multiple complex sinusoid signals. [Doctoral Dissertation]. Loughborough University; 2015. Available from: https://dspace.lboro.ac.uk/2134/17958 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658295
Loughborough University
4.
Wheeler, Paul T.
Adaptive notch filtering for tracking multiple complex sinusoid signals.
Degree: PhD, 2015, Loughborough University
URL: http://hdl.handle.net/2134/17958
► This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse…
(more)
▼ This thesis is related to the field of digital signal processing; where the aim of this research is to develop features of an infinite impulse response adaptive notch filter capable of tracking multiple complex sinusoid signals. Adaptive notch filters are commonly used in: Radar, Sonar, and Communication systems, and have the ability to track the frequencies of real or complex sinusoid signals; thus removing noise from an estimate, and enhancing the performance of a system. This research programme began by implementing four currently proposed adaptive notch structures. These structures were simulated and compared: for tracking between two and four signals; however, in their current form they are only capable of tracking real sinusoid signals. Next, one of these structures is developed further, to facilitate the ability to track complex sinusoid signals. This original structure gives superior performance over Regalia's comparable structure under certain conditions, which has been proven by simulations and results. Complex adaptive notch filter structures generally contain two parameters: the first tracks a target frequency, then the second controls the adaptive notch filter's bandwidth. This thesis develops the notch filter, so that the bandwidth parameter can be adapted via a method of steepest ascent; and also investigates tracking complex-valued chirp signals. Lastly, stochastic search methods are considered; and particle swarm optimisation has been applied to reinitialise an adaptive notch filter, when tracking two signals; thus more quickly locating an unknown frequency, after the frequency of the complex sinusoid signal jumps.
Subjects/Keywords: 621.382; Complex adaptive notch filter; Notch bandwidth adaptation; Tracking multiple complex sinusoid signals
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wheeler, P. T. (2015). Adaptive notch filtering for tracking multiple complex sinusoid signals. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/17958
Chicago Manual of Style (16th Edition):
Wheeler, Paul T. “Adaptive notch filtering for tracking multiple complex sinusoid signals.” 2015. Doctoral Dissertation, Loughborough University. Accessed December 12, 2019.
http://hdl.handle.net/2134/17958.
MLA Handbook (7th Edition):
Wheeler, Paul T. “Adaptive notch filtering for tracking multiple complex sinusoid signals.” 2015. Web. 12 Dec 2019.
Vancouver:
Wheeler PT. Adaptive notch filtering for tracking multiple complex sinusoid signals. [Internet] [Doctoral dissertation]. Loughborough University; 2015. [cited 2019 Dec 12].
Available from: http://hdl.handle.net/2134/17958.
Council of Science Editors:
Wheeler PT. Adaptive notch filtering for tracking multiple complex sinusoid signals. [Doctoral Dissertation]. Loughborough University; 2015. Available from: http://hdl.handle.net/2134/17958
University of Southern California
5.
Levin, Jason M.
Practical adaptive control for systems with flexible modes,
disturbances, and time delays.
Degree: PhD, Electrical Engineering, 2009, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/574976/rec/5159
► Control systems are used in a variety of applications where tracking and regulation are required, although there exist numerous problems which can cause detrimental effects…
(more)
▼ Control systems are used in a variety of applications
where tracking and regulation are required, although there exist
numerous problems which can cause detrimental effects for standard
controllers. The field of
adaptive control has been researched and
applied to solve some of these difficulties, usually through the
use of complete
adaptive control strategies. This research proposes
adaptive controllers which may be added to fixed non-
adaptive
controllers to form a single unified scheme. This allows the
traditional control designer some intuition in the development
while reaping the benefits of a controller which can compensate for
unknown or changing dynamics. There are three specific problems
tackled in this research: flexible modes, disturbances, and time
delays. Since each of these may be uncertain or may change over
time, the addition of an
adaptive controller may allow the system
to meet performance requirements or retain stability.; This
research will contribute the design and analytical proof of
adaptive mode suppression schemes to deal with unknown flexible
modes. These modes may be uncertain for a variety of reasons, such
as variation between production units, changes in the surrounding
environment, degradation over lifetime, or wear from use. The
adaptive mode suppression schemes include an
adaptive notch filter
which is able to track and suppress a varying flexible mode.
However, disturbances can also reduce the performance of a control
system, specifically one where precise tracking is paramount. For
this, we contribute an
adaptive neural modeled disturbance rejector
which can be added to a stable control system to enhance tracking
performance. Lastly, many systems in the field of process controls
contain dominant time delays which can change with time, thus
affecting the stability and robustness of the closed loop system.
To solve this problem, we propose an
adaptive Smith predictor which
is able to estimate and compensate for the uncertain time delay. To
show the benefit of the
adaptive controllers, several applications
are presented, such as a hard disk drive (HDD) where unknown high
frequency flexible modes inhibit the achievable bandwidth and
dynamic disturbances degrade the tracking quality. Experimental
results of the
adaptive mode suppression scheme and disturbance
rejection scheme are included. Also simulations of an integrated
scheme with the
adaptive mode suppression scheme and neural modeled
disturbance rejector are done to show an improvement in
performance. Simulations are also conducted on a nonlinear
hypersonic aircraft model which experiences changing elastic modes,
where an
adaptive mode suppression scheme is shown to retain
stability.
Advisors/Committee Members: Ioannou, Petros A. (Committee Chair), Safonov, Michael G. (Committee Member), Flashner, Henryk (Committee Member).
Subjects/Keywords: adaptive control; flexible mode suppression; adaptive notch filter; hard disk drive; fast steering mirror; hypersonic aircraft; adaptive smith predictor
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Levin, J. M. (2009). Practical adaptive control for systems with flexible modes,
disturbances, and time delays. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/574976/rec/5159
Chicago Manual of Style (16th Edition):
Levin, Jason M. “Practical adaptive control for systems with flexible modes,
disturbances, and time delays.” 2009. Doctoral Dissertation, University of Southern California. Accessed December 12, 2019.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/574976/rec/5159.
MLA Handbook (7th Edition):
Levin, Jason M. “Practical adaptive control for systems with flexible modes,
disturbances, and time delays.” 2009. Web. 12 Dec 2019.
Vancouver:
Levin JM. Practical adaptive control for systems with flexible modes,
disturbances, and time delays. [Internet] [Doctoral dissertation]. University of Southern California; 2009. [cited 2019 Dec 12].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/574976/rec/5159.
Council of Science Editors:
Levin JM. Practical adaptive control for systems with flexible modes,
disturbances, and time delays. [Doctoral Dissertation]. University of Southern California; 2009. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/574976/rec/5159
Northeastern University
6.
Li, Haoqing.
Robust interference mitigation methods for GNSS anti-jamming.
Degree: MS, Department of Electrical and Computer Engineering, 2018, Northeastern University
URL: http://hdl.handle.net/2047/D20294247
► Global Navigation Satellite System (GNSS) encompass those positioning systems which are based on a constellation of satellites. In GNSS, there are sometimes strong jamming signals…
(more)
▼ Global Navigation Satellite System (GNSS) encompass those positioning systems which are based on a constellation of satellites. In GNSS, there are sometimes strong jamming signals which would overwhelm the much weaker GNSS signals. There are many ways to mitigate the influence of those interferences and improve the performance of the receiver. In this thesis, a number of interference mitigation methods are investigated and compared. Particularly, adaptive notch filtering is used as a benchmark method which is representative of state-of-the-art Interference Cancellation (IC) methods. The thesis investigates robust statistics and its use in the context of GNSS jamming mitigation. The main hypothesis taken is that jammers can be considered as outliers (either in time of frequency domain) to the received GNSS signal. This is the case of most common jammers. The set of robust methods analyzed include Maximum Likelihood (ML) type-estimators and Huber M-estimator. Two kinds of interferences are analyzed: Continuous Wave (CW) signal and Saw-tooth (ST) signal. In this thesis, we discuss how different robust methods compare to adaptive notch filtering, when dealing with CW and ST signals. The performance of those methods is demonstrated in both acquisition and tracking stages of the receiver. Besides the increased performance in mitigating the jamming signal, robust methods have the feature of avoiding the need for detecting and estimating the interference waveform, as is typical in IC schemes, which makes it particularly appealing for implementation.
Subjects/Keywords: adaptive notch filter; GNSS; jamming; maximum likelihood estimation; m-estimation; robust statistics
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, H. (2018). Robust interference mitigation methods for GNSS anti-jamming. (Masters Thesis). Northeastern University. Retrieved from http://hdl.handle.net/2047/D20294247
Chicago Manual of Style (16th Edition):
Li, Haoqing. “Robust interference mitigation methods for GNSS anti-jamming.” 2018. Masters Thesis, Northeastern University. Accessed December 12, 2019.
http://hdl.handle.net/2047/D20294247.
MLA Handbook (7th Edition):
Li, Haoqing. “Robust interference mitigation methods for GNSS anti-jamming.” 2018. Web. 12 Dec 2019.
Vancouver:
Li H. Robust interference mitigation methods for GNSS anti-jamming. [Internet] [Masters thesis]. Northeastern University; 2018. [cited 2019 Dec 12].
Available from: http://hdl.handle.net/2047/D20294247.
Council of Science Editors:
Li H. Robust interference mitigation methods for GNSS anti-jamming. [Masters Thesis]. Northeastern University; 2018. Available from: http://hdl.handle.net/2047/D20294247
7.
Knežević Jovan.
Novi metod za analizu harmonijskog izobličenja signala kod ocene kvaliteta električne energije.
Degree: 2016, University of Novi Sad
URL: http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146286986787878.pdf?controlNumber=(BISIS)100921&fileName=146286986787878.pdf&id=5566&source=OATD&language=en
;
http://www.cris.uns.ac.rs/record.jsf?recordId=100921&source=OATD&language=en
► Naučna rasprava izložena u ovoj tezi bavi se analizom kvaliteta električne energije. Visok nivo električne energije podrazumeva da su napon napajanja i struja potrošača…
(more)
▼ Naučna rasprava izložena u ovoj tezi bavi se analizom kvaliteta električne energije. Visok nivo električne energije podrazumeva da su napon napajanja i struja potrošača idealne sinusoide sa tačno određenom amplitudom i učestanošću. Bilo kakva odstupanja od idealnog nazivaju se izobličenja i najčešće se karakterišu sa harmonicima. Poslednjih godina dolazi do naglog razvoja poluprovodničkih komponenata. Takve komponente su uticale na ubrzan razvoj snažnih uređaja energetske elektronike. Ti uređaji su nelinearnog karaktera, što dovodi do pojave harmonika u signalima napona i struja elektroenergetskog sistema. Prvi problem kojim se bavi ova teza je analiza talasnih oblika struja ispravljača. Metode primenjene za analizu su wavelet transformacija (VT) i modulated overlapped transformacija (MLT). MLT nadoknađuje nedostatak VT da dekomponuje signal u odgovarajuće podopsege koji mogu sadržati i više harmonika i daje tačnu informaciju o svakom harmoniku. Obe metode su pogodne za offline analizu. Za online analizu predložen je hibridni metod baziran na diskretnoj Furijeovoj transformaciji (DFT) i adaptivnom pojasnom filteru (EPLL). Hibridni metod je zadržao dinamički odziv DFT-a, dok je EPLL obezbedio sinhronizaciju sa osnovnom učestanošću sistema. Hibridni metod daje dovoljno tačnu informaciju o osnovnom i višim harmonicima samo ako su njihove učestanosti ceolobrojni umnožak učestanosti osnovnog harmonika. U slučaju pojave interharmonika, odnosno kada taj odnos više ne važi, hibridni metod ne daje tačne rezultate. Za analizu takvih signala predložen je novi metod, koji je baziran na adaptivnom diskretnom pojasnom filteru (ANF) t.j. metod koristi diskretni pojasni filter za modelovanje harmonijskih komponenata u ulaznom signalu, dok se prošireni Kalmanov filter (EKF) koristi kao adaptivni mehanizam. Novi metod je preuzeo osobinu ANF-a da može adaptivno da prati promene učestanosti i osobinu EKF-a da ima bolji dinamički odziv. Metode su implementirane na digitalnom procesoru za obradu signala i upoređene sa postojećim metodama. Metode pokazuju prednosti u odnosu na druge metode.
Scientific research in this thesis discusses power quality analysis. High power quality assumes that both the voltage power supply and the load current are ideal sinusoidal signals with a precisely defined amplitude and frequency. Any deviations from this ideal vaweform are considered as distortion and are characterised by harmonics. Over the last few decades, there has been a rapid development of semiconductor components. Such components made an impact on the fast development of power electronics devices. These devices are nonlinear, introducing harmonics in both voltage and current of the power grid. The first issue researched in this thesis is the analysis of the rectifier voltage and…
Advisors/Committee Members: Katić Vladimir, Milanović Jovica, Dujić Dražen, Vasić Veran, Strezoski Vladimir.
Subjects/Keywords: Kvalitet električne energije, harmonici, Furijeovatransformacija, adaptivni pojasni filteru; Power quality, harmonics, Fourier transform, adaptive notch filter
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jovan, K. (2016). Novi metod za analizu harmonijskog izobličenja signala kod ocene kvaliteta električne energije. (Thesis). University of Novi Sad. Retrieved from http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146286986787878.pdf?controlNumber=(BISIS)100921&fileName=146286986787878.pdf&id=5566&source=OATD&language=en ; http://www.cris.uns.ac.rs/record.jsf?recordId=100921&source=OATD&language=en
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Jovan, Knežević. “Novi metod za analizu harmonijskog izobličenja signala kod ocene kvaliteta električne energije.” 2016. Thesis, University of Novi Sad. Accessed December 12, 2019.
http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146286986787878.pdf?controlNumber=(BISIS)100921&fileName=146286986787878.pdf&id=5566&source=OATD&language=en ; http://www.cris.uns.ac.rs/record.jsf?recordId=100921&source=OATD&language=en.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jovan, Knežević. “Novi metod za analizu harmonijskog izobličenja signala kod ocene kvaliteta električne energije.” 2016. Web. 12 Dec 2019.
Vancouver:
Jovan K. Novi metod za analizu harmonijskog izobličenja signala kod ocene kvaliteta električne energije. [Internet] [Thesis]. University of Novi Sad; 2016. [cited 2019 Dec 12].
Available from: http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146286986787878.pdf?controlNumber=(BISIS)100921&fileName=146286986787878.pdf&id=5566&source=OATD&language=en ; http://www.cris.uns.ac.rs/record.jsf?recordId=100921&source=OATD&language=en.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jovan K. Novi metod za analizu harmonijskog izobličenja signala kod ocene kvaliteta električne energije. [Thesis]. University of Novi Sad; 2016. Available from: http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija146286986787878.pdf?controlNumber=(BISIS)100921&fileName=146286986787878.pdf&id=5566&source=OATD&language=en ; http://www.cris.uns.ac.rs/record.jsf?recordId=100921&source=OATD&language=en
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
8.
Ronquist, Anton.
Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor.
Degree: Automatic Control, 2016, Linköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554
► Hybrid stepper motors are a common type of electric motor used throughout industry thanks to its low-cost, high torque at low speed and open…
(more)
▼ Hybrid stepper motors are a common type of electric motor used throughout industry thanks to its low-cost, high torque at low speed and open loop positioning capabilities. However, a closed loop control is often required for industrial applications with high precision requirements. The closed loop control can also be used to lower the power consumption of the motor and ensure that stalls are avoided. It is quite common to utilise a large and costly position encoder or resolver to feedback the position signal to the control logic. This thesis has explored the possibility of using a low-cost position sensor based on Hall elements. Additionally, a sensorless estimation algorithm, using only stator winding measurements, has been investigated both as a competitive alternative and as a possible complement to the position sensor. The thesis work summarises and discusses previous research attempts to adequately measure or estimate and control the hybrid stepper motors position and load angle without using a typical encoder or resolver. Qualitative results have been produced through simulations prior to implementation and experimental testing. The readings from the position sensor is subject to noise, owing to its resolution and construction. The position signal has been successfully filtered, improving its accuracy from 0.56° to 0.25°. The output from the sensorless estimation algorithm is subject to non-linear errors caused by errors in phase voltage measurements and processing of velocity changes. However, the dynamics are reliable at constant speeds and could be used for position control.
Subjects/Keywords: Adaptive Notch Filter; Back-EMF; Electric Motor Position Control; Error Modelling; Field-Oriented Control; Hybrid Stepper Motor; Kalman Filter; Load Angle; Magnetic Rotary Position Sensor; Sensorless Control; Sliding Window Discrete Fourier Transform; Stall Detection and Prediction.
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ronquist, A. (2016). Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor. (Thesis). Linköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ronquist, Anton. “Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor.” 2016. Thesis, Linköping University. Accessed December 12, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ronquist, Anton. “Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor.” 2016. Web. 12 Dec 2019.
Vancouver:
Ronquist A. Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor. [Internet] [Thesis]. Linköping University; 2016. [cited 2019 Dec 12].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ronquist A. Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor. [Thesis]. Linköping University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
. 
Open Access Theses and Dissertations
