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YANG Yugang,WANG Jinhai,ZHANG Shuqi,ZHU Enze.Study on Bidirectional DC/DC Converter Based on Asymmetric Coupled Inductors under Control of Interleaving Parallel Magnetic Integration Combined with Soft Switching[J].JOURNAL OF POWER SUPPLY,2018,16(6):34-44
Study on Bidirectional DC/DC Converter Based on Asymmetric Coupled Inductors under Control of Interleaving Parallel Magnetic Integration Combined with Soft Switching
Received:January 12, 2017  Revised:March 12, 2018
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DOI:10.13234/j.issn.2095-2805.2018.6.34
Keywords:asymmetric coupled inductor  interleaving parallel magnetic integration  bidirectional DC/DC converter(BDC)  soft switching
Fund Project:Project Supported by National Natural Science Foundation of China (U1510128) and Fundamental Research Program of Liaoning Province Education Department Key Lab (LZ2015045)
           
AuthorInstitutionEmail
YANG Yugang Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China
WANG Jinhai Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China 18842900939@163.com
ZHANG Shuqi Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China
ZHU Enze Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China
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Abstract:
      To solve the practical problems in a traditional bidirectional DC/DC converter(BDC), such as larger loss and lower efficiency, a control method of interleaving parallel magnetic integration combined with soft switching is proposed in this paper. First, an interleaving parallel magnetically integrated BDC based on asymmetric coupled inductors is taken as the research object, and the three working states of the converter running in phases 1, 2, and 4 are analyzed, respectively. Then, the duration of the inductor's reverse current and dead time are discussed in each working state. Accordingly, the zero-voltage switch(ZVS) conditions for each state are summarized. Finally, the theoretical analy-sis was verified experimentally, showing the practicality of the design scheme.
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