A Modularizable High-Frequency Battery Equalizer with Multi-Winding Transformer for Energy Storage Systems  

作　　者：Chihchiang Hua Jianbin Lai Zhewei Zhang Chihchiang Hua;Jianbin Lai;Zhewei Zhang(Department of Electrical Engineering, National Yunlin University of Science and Technology, Yunlin;Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Yunlin)

机构地区：[1]Department of Electrical Engineering, National Yunlin University of Science and Technology, Yunlin [2]Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Yunlin

出　　处：《Open Journal of Applied Sciences》2024年第12期3731-3747,共17页应用科学(英文)

摘　　要：This paper proposes an improved modularizable high-frequency battery equalizer with multi-winding transformer for energy storage systems. The involvement of parasitic components in circuit resonance, along with the addition of a resonant network, enables soft-switching for the power switches to reduce the switch voltage stress due to high frequency switching operation. The proposed circuit is designed to operate at switching frequency of 1 MHz. The detailed analysis of circuit operation is provided. At last, the feasibility and performance of the proposed battery equalizer are demonstrated through the system implementation and experimental tests of a prototype circuit. Experimental results have shown zero voltage switching (ZVS) is achieved on the switches.This paper proposes an improved modularizable high-frequency battery equalizer with multi-winding transformer for energy storage systems. The involvement of parasitic components in circuit resonance, along with the addition of a resonant network, enables soft-switching for the power switches to reduce the switch voltage stress due to high frequency switching operation. The proposed circuit is designed to operate at switching frequency of 1 MHz. The detailed analysis of circuit operation is provided. At last, the feasibility and performance of the proposed battery equalizer are demonstrated through the system implementation and experimental tests of a prototype circuit. Experimental results have shown zero voltage switching (ZVS) is achieved on the switches.

关 键 词：Battery Equalizer High Switching Frequency Multi-Winding Transformer 

分 类 号：TM4[电气工程—电器]