A Hierarchical ZVS Battery Equalizer Based on Bipolar CCM Buck-Boost Units

doi:10.1109/ECCE.2018.8558452

	A Hierarchical ZVS Battery Equalizer Based on Bipolar CCM Buck-Boost Units
	Peng, Faxiang; Wang, Haoyu; Yu, Liang
	2018
会议录名称	2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)
ISSN	2329-3721
页码	2120-2126
发表状态	已发表
DOI	10.1109/ECCE.2018.8558452
摘要	Conventional battery equalizers rely on unipolar continuous-conduction mode of power electronic converters. This causes substantial energy losses during the switching transitions. To cope with this issue, this paper proposes a novel hierarchical battery equalizer based on bipolar continuous-conduction mode buck-boost units. In the proposed structure, the inductor current is controlled to enter into the negative region at the end of each switching period. Thus, the body diode of power MOSFET provides a freewheeling path for the inductor current during the dead band. This ensures zerovoltage switching of both power MOSFETs. Therefore, the switching losses are significantly reduced. Meanwhile, the integral of the inductor negative current is precisely controlled to minimize the circulating current. This guarantees both minimized conduction losses and suitable equalization speed. The operation principle and control strategy of the equalizer are analyzed. The comparison of equalization speed between different equalizer is presented. An experimental prototype to balance four series-connected Lithium-ion battery cells is implemented. Both simulation and experimental results validate the functionality and analysis of this battery equalizer.
关键词	battery equalizer bipolar continuous-conduction mode (CCM) buck-boost converter Lithium-ion battery zero-voltage switching (ZVS)
出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
会议地点	Portland, OR
会议日期	23-27 Sept. 2018
URL	查看原文
收录类别	CPCI ; CPCI-S ; EI
语种	英语
资助项目	Shanghai Sailing Program[16YF1407600]
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Electrical & Electronic
WOS记录号	WOS:000455187602079
出版者	IEEE
EI入藏号	20190406420123
EI主题词	Electric inductors ; Energy conversion ; Energy dissipation ; Equalizers ; Lithium-ion batteries ; Power MOSFET ; Static random access storage ; Zero voltage switching
EI分类号	Energy Losses (industrial and residential):525.4 ; Energy Conversion Issues:525.5 ; Electric Components:704.1 ; Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers:713.5 ; Data Storage, Equipment and Techniques:722.1
WOS关键词	REDUCED NUMBER ; CONVERTER
原始文献类型	Proceedings Paper
来源库	IEEE
引用统计	正在获取...
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/28221
专题	信息科学与技术学院_硕士生信息科学与技术学院_PI研究组_王浩宇组
通讯作者	Wang, Haoyu
作者单位	ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China
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	Peng, Faxiang,Wang, Haoyu,Yu, Liang. A Hierarchical ZVS Battery Equalizer Based on Bipolar CCM Buck-Boost Units[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:2120-2126.