A New Coupled-Inductor Structure for Interleaving Bidirectional DC-DC Converters

作者：Yang, Yugang^*; Ma, Jie; Ho, Carl Ngai-Man; Zou, Yufei

来源：IEEE Journal of Emerging and Selected Topics in Power Electronics, 2015, 3(3): 841-849.

DOI：10.1109/JESTPE.2015.2443178

• Air-gap fringing flux
• bidirectional dc/dc converter
• coupled inductors
• interleaved technique
• magnetic core

A new E(sic)-shape coupled inductor structure and its magnetic circuit models are presented. The proposed E(sic)-shape coupled inductor structure retains the advantages of high power density and tackles the drawback of high air-gap fringing flux losses in conventional E(sic)-shape coupled inductor structure. Besides, the proposed E(sic)-shape structure gives the advantages of shorter winding length and more uniform thermal distribution compared with the conventional E(sic)-shape structure. The proposed E(sic)-shape structure and its magnetic models are successfully simulated by ANSYS and Maxwell 2-D, and implemented to apply to interleaving bidirectional dc/dc converters. The simulated and experimental results show that the proposed E(sic)-shape structure of coupled inductors is superior to the same volume E(sic)-shape structure of coupled inductors in terms of temperature, inductance, losses, inductor ripple currents, and efficiencies. The theoretical prediction and experimental results are in good agreement.

• 出版日期2015-9
• 单位辽宁工程技术大学