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YANG Yugang,ZHANG Shuqi,MIAO Chuang,WANG Jinhai,LI Xiuju.Design Criterion for Multi-phase Coupled Inductors in Magnetically Integrated Interleaving Bidirectional DC-DC Converter[J].JOURNAL OF POWER SUPPLY,2018,16(3):28-35,53
Design Criterion for Multi-phase Coupled Inductors in Magnetically Integrated Interleaving Bidirectional DC-DC Converter
Received:October 31, 2016  Revised:May 31, 2017
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DOI:10.13234/j.issn.2095-2805.2018.3.28
Keywords:asymmetric coupled inductor  design criterion  bidirectional DC-DC converter  magnetic integration
Fund Project:The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)
              
AuthorInstitutionEmail
YANG Yugang Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China
ZHANG Shuqi Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China sqzhang2010@163.com
MIAO Chuang Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China
WANG Jinhai Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao , China
LI Xiuju Dispatching Control Center, State Grid Huludao Power Supply Company, Huludao , China
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Abstract:
      Due to the structural characteristics of a 4-phase(arranged in parataxis) asymmetrical coupled inductor, its output result is different from that of an symmetrical coupled inductor when they operate in a magnetically integrated interleaving bidirectional DC-DC converter. By analyzing the working modes of 4-phase asymmetrical coupled inductors that are used in the same converter, the converter's performances in steady-and transient-state are studied with different symmetric degrees, duty cycles and coupling coefficients. The design criterion for the 4-phase asymmetric coupled inductors is given, i.e., the selection ranges of parameters are determined using the design formula at first, then the related parameters can be selected accordingly. At last, the theoretical analysis was verified through designs and tests on inductors with this kind of structure.
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