A Family of Zero-Voltage-Switching Magnetic Coupling Nonisolated Bidirectional DC-DC Converters

Chen, Guipeng, Deng, Yan, Chen, Luan, Hu, Yihua, Jiang, Lin ORCID: 0000-0001-6531-2791, He, Xiangning and Wang, Yousheng (2017) A Family of Zero-Voltage-Switching Magnetic Coupling Nonisolated Bidirectional DC-DC Converters IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 64 (8). pp. 6223-6233. ISSN 0278-0046, 1557-9948

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Abstract

This paper proposes a family of magnetic coupling nonisolated bidirectional DC-DC converters, which can achieve soft-switching operation in both power flow directions with a simple auxiliary circuit. Compared with conventional zero-voltage-transition converters, the additional resonant inductor is eliminated and magnetic core number is reduced. Therefore, both high efficiency and low cost are achieved. First, a general zero-voltage-switching (ZVS) magnetic coupling structure is proposed for a bidirectional buck/boost converter, based on which 13 different ZVS topologies with different connections of auxiliary circuit are derived. It is very beneficial in practical industrial applications because engineers can choose an optimal one according to converter performance characteristics, and the topology derivation methodology can be easily extended to other bidirectional DC-DC converters. Second, based on the general structure, operation principle and performance characteristics of all proposed topologies are simultaneously obtained, which can facilitate topology comparison and selection processes. Finally, in order to verify the effectiveness of theoretical analysis, design considerations and experiment results of a 500-W prototype circuit are demonstrated.

Item Type:	Article
Uncontrolled Keywords:	Bidirectional dc-dc converters (BDCs), coupled inductor, topology derivation, zero-voltage switching (ZVS)
Depositing User:	Symplectic Admin
Date Deposited:	21 Sep 2017 14:12
Last Modified:	16 Jun 2026 04:18
DOI:	10.1109/TIE.2017.2682007
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3009558
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