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Jung, Jee-Hoon
Advanced Power Interface & Power Electronics Lab (APIPEL)
Research Interests
  • Power Converter, Wireless Power Transfer, Smart Power Interface, Digital Control System,

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다중권선 변압기를 이용한 능동형 셀 밸런싱 회로의 에너지 전달 효율을 높이기 위한 향상된 스위칭 패턴

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Title
다중권선 변압기를 이용한 능동형 셀 밸런싱 회로의 에너지 전달 효율을 높이기 위한 향상된 스위칭 패턴
Other Titles
Enhanced Switching Pattern to Improve Energy Transfer Efficiency of Active Cell Balancing Circuits Using Multi-winding Transformer
Author
이상중김명호백주원정지훈
Issue Date
2019-08
Publisher
전력전자학회
Citation
전력전자학회 논문지, v.24, no.4, pp.279 - 285
Abstract
This study proposes an enhanced switching pattern that can improve energy transfer efficiency in an active cell-balancing circuit using a multiwinding transformer. This balancing circuit performs cell balancing by transferring energy stored in a specific cell with high energy to another cell containing low energy through a multiwinding transformer. The circuit operates in flyback and buck-boost modes in accordance with the energy transfer path. In the conventional flyback mode, the leakage inductance of the transformer and the stray inductance component of winding can transfer energy to an undesired path during the balancing operation. This case results in cell imbalance during the cell-balancing process, which reduces the energy transfer efficiency. An enhanced switching pattern that can effectively perform cell balancing by minimizing the amount of energy transferred to the nontarget cells due to the leakage inductance components in the flyback mode is proposed. Energy transfer efficiency and balancing speed can be significantly improved using the proposed switching pattern compared with that using the conventional switching pattern. The performance improvements are verified by experiments using a 1 W prototype cell-balancing circuit.
URI
https://scholarworks.unist.ac.kr/handle/201301/27337
URL
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE08762986
DOI
10.6113/TKPE.2019.24.4.279
ISSN
1229-2214
Appears in Collections:
ECE_Journal Papers
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