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You searched for id:"oai:NSYSU:etd-0729117-152514". One record found.

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NSYSU

1. Yang, Meng-Fen. A Polarity-Switched Flyback Conversion Circuit for Battery Charge Equalization.

Degree: Master, Electrical Engineering, 2017, NSYSU

The thesis proposes a charge equalizer with a polarity-switched flyback converter and the arrayed switches for batteries connected in series. By exchanging the arrayed switches, the charger equalizer can select the target battery, which is with the lowest state-of-charge(SOC). The flyback converter utilizes the full power from charger and at the same time allocate a relatively high current to the target battery. The balance charging scheme employs the constant-current constant-voltage(CC-CV) charging method and estimates the batteriesâ SOCs by the loaded voltage method. The balance charging process is accomplished by a regular charging stage, a low-current detection stage, and eventually an individual charging stage. In the first two stages, the balance charging is performed alternately by a detection mode to select a target battery and then a balancing mode to charge it with relatively large current. At the individual charging stage, the series charging current path is cut off and the charge equalizer charges the batteries one by one with CC-CV charging method. Experiment tests are carried out on a battery power bank consisting of four serial lithium iron phosphate batteries with the proposed charge equalizer. Experiment results have shown that the charge imbalance can be effectively reduced after the regular charging stage for most practical cases. With a lower detection current, the balance charging period can be extended to further alleviate the SOC difference among the serial batteries. Eventually, all batteries can be charged to their full capacities with individual charging, even if they are initially with extreme imbalance. Advisors/Committee Members: Yao-Ching Hsieh (chair), Shiang-Hwua Yu (chair), Tzung-Lin Lee (chair), Chin-Sien Moo (committee member), Chih-Chiang Hua (chair).

Subjects/Keywords: Charge equalizer; Flyback converter; Arrayed switches; Constantâcurrent constant-voltage (CC-CV) charging method; Lithium iron phosphate battery; State-of-charge (SOC)

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

APA (6th Edition):

Yang, M. (2017). A Polarity-Switched Flyback Conversion Circuit for Battery Charge Equalization. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729117-152514

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):

Yang, Meng-Fen. “A Polarity-Switched Flyback Conversion Circuit for Battery Charge Equalization.” 2017. Thesis, NSYSU. Accessed November 19, 2017. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729117-152514.

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

MLA Handbook (7th Edition):

Yang, Meng-Fen. “A Polarity-Switched Flyback Conversion Circuit for Battery Charge Equalization.” 2017. Web. 19 Nov 2017.

Vancouver:

Yang M. A Polarity-Switched Flyback Conversion Circuit for Battery Charge Equalization. [Internet] [Thesis]. NSYSU; 2017. [cited 2017 Nov 19]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729117-152514.

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

Council of Science Editors:

Yang M. A Polarity-Switched Flyback Conversion Circuit for Battery Charge Equalization. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729117-152514

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

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