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다중 직렬 연결된 대용량 EDLC 모듈에 적합한 전압 밸런싱 기법에 대한 연구

Title
다중 직렬 연결된 대용량 EDLC 모듈에 적합한 전압 밸런싱 기법에 대한 연구
Other Titles
A Study of Voltage Balancing Method in Series-Connected EDLCs for High Power Applications
Author
고광철
Keywords
Voltage Balancing; Passive Balancing; Series-Connected EDLCs; Zener Diode
Issue Date
2015-07
Publisher
한국조명.전기설비학회
Citation
조명.전기설비학회논문지, v. 29, NO 7, Page. 22-27
Abstract
In this paper, the problem of voltage unbalancing in series-connected multiple electric double-layer capacitors(EDLCs) is studied. Good understanding of this problem is required in order to increase reliability and stability of an energy storage system comprising EDLCs. Existing methods to settle voltage unbalancing cannot mitigate the problem enough for each cell, since most method have been applied to each module. For equalizing between cells, Zener diode which is one of passive method have been well examined in literature. However, Zener have well not used in balancing due to heating problem. In addition, It is difficult to choose Zener diode fitted rating voltage of EDLC, because of its internal resistance. Thus, we proposed passive balancing using Zener diode by analyzing parasitic element of Zener and EDLC. To experimentally confirm the balancing effect, we compared in two occasions which are with and without passive. As a result, proposed passive balancing circuit mitigated unbalanced voltage gap between EDLCs.
URI
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE06387657http://hdl.handle.net/20.500.11754/26492
ISSN
1229-4691; 2287-5034
DOI
10.5207/JIEIE.2015.29.7.022
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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다중 직렬 연결된 대용량 EDLC 모듈에 적합한 전압 밸런싱 기법에 대한 연구.pdfDownload
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