Bidirectional Constant Current String-to-Cell Battery Equalizer Based on L2C3 Resonant Topology

doi:10.1109/TPEL.2022.3205440

	Bidirectional Constant Current String-to-Cell Battery Equalizer Based on L2C3 Resonant Topology
	Wei, Zhengqi1,2 ; Wang, Haoyu1 ; Lu, Yiqing1 ; Shu, Dongdong1 ; Ning, Guangdong1 ; Fu, Minfan1
	2023
发表期刊	IEEE TRANSACTIONS ON POWER ELECTRONICS (IF:6.6[JCR-2023],6.9[5-Year])
ISSN	0885-8993
EISSN	1941-0107
卷号	38 期号:1 页码:1-13
发表状态	已发表
DOI	10.1109/TPEL.2022.3205440
摘要	In battery equalization systems, equalization speed, control complexity and length of energy flow path are the important figures of merits (FoMs). This manuscript presents a novelty bidirectional L2C3 resonant converter in a unique equalizer architecture with constant balancing current and fixed frequency control. The constant balancing current can be customized to achieve a stable balancing speed. The common equalizer unit transfers power bi-directionally between the entire string and any single cell. Design considerations of L2C3-based bidirectional equalizer are analyzed in detail, which ensures zero-voltage switching (ZVS) among all MOSFETs during the equalization process. The circuit was designed with synchronous rectification using the first harmonics approximation (FHA). The key contributions of this manuscript include 1) a new bidirectional resonant topology for battery equalization; 2) bidirectional constant current balancing with open-loop control; 3) simplified synchronous rectification. An equalizer prototype with four lithium-ion battery cells at a balancing current of 500mA is built and tested. The L2C3 circuit operates at 200kHz with a peak efficiency of 89.4 and 90.1 under two balancing modes. Experimental results show the proposed scheme exhibits outstanding balancing performance. IEEE
关键词	Battery management systems Electric rectifiers Lithium-ion batteries Power converters Topology Zero voltage switching Battery Battery equalizer Battery management system Bidirectional control Electric vehicle L2c3 converter Resonant converters Transformer Zero- Voltage Switching
URL	查看原文
收录类别	SCI ; EI
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
EI入藏号	20223812757043
EI主题词	Equalizers
EI分类号	702.1.2 Secondary Batteries ; 713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers ; 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
原始文献类型	Article in Press
Scopus 记录号	2-s2.0-85137861545
来源库	Scopus
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/231993
专题	信息科学与技术学院_博士生信息科学与技术学院_PI研究组_王浩宇组信息科学与技术学院_PI研究组_傅旻帆组信息科学与技术学院_硕士生
通讯作者	Wang, Haoyu
作者单位	1.ShanghaiTech University,Center for Intelligent Power and Energy Systems,School of Information Science and Technology,Shanghai,201210,China 2.City University of Hong Kong,Department of Electrical Engineering,Kowloon Tong,Hong Kong
第一作者单位	信息科学与技术学院
通讯作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Wei, Zhengqi,Wang, Haoyu,Lu, Yiqing,et al. Bidirectional Constant Current String-to-Cell Battery Equalizer Based on L2C3 Resonant Topology[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS,2023,38(1):1-13.
APA	Wei, Zhengqi,Wang, Haoyu,Lu, Yiqing,Shu, Dongdong,Ning, Guangdong,&Fu, Minfan.(2023).Bidirectional Constant Current String-to-Cell Battery Equalizer Based on L2C3 Resonant Topology.IEEE TRANSACTIONS ON POWER ELECTRONICS,38(1),1-13.
MLA	Wei, Zhengqi,et al."Bidirectional Constant Current String-to-Cell Battery Equalizer Based on L2C3 Resonant Topology".IEEE TRANSACTIONS ON POWER ELECTRONICS 38.1(2023):1-13.