储能科学与技术2019，Vol.8Issue(3)：468-476,9.DOI:10.12028/j.issn.2095-4239.2019.0011
基于电力调频的串联锂离子电池组均衡技术分析
Analysis of equalization technology of series lithium-ion battery pack based on power frequency modulation
摘要
Abstract
Lithium-ion batteries have gained rapid development in the field of frequency regulation of energy storage power stations. In order to meet the voltage and power requirements of the frequency modulation power station, a large number of battery cells need to be connected in series, then battery cells imbalance problem may occur. Moreover, the high rate and frequent switching of the charge and discharge state of battery packs in the frequency modulation process increase the degree of inconsistency, which seriously affects the cycle life and safety performance of the battery packs. In view of the problems mentioned above, this paper summarizes the causes of the inconsistency problem of series-connected lithium-ion battery packs, and evaluates the strategies which are used to improve the consistency of the battery packs. Among them, the balancing topologies are sorted according to the energy flow, while the balancing strategies are based on the different objectives. On this basis, the development trend of equalization technology for lithium-ion frequency modulation battery packs is prospected.关键词
调频储能/串联电池组/高倍率/不一致性/均衡技术Key words
frequency modulation energy storage/series-connected lithium-ion battery packs/high rate/inconsistency/equalization technology分类
信息技术与安全科学引用本文复制引用
李佳娜,刘丹丹,朱峰,谢晨,侯洋,陈永翀..基于电力调频的串联锂离子电池组均衡技术分析[J].储能科学与技术,2019,8(3):468-476,9.基金项目
国家自然科学基金(51707181、51707188) （51707181、51707188）
北京市自然科学基金-海淀原始创新联合基金(L172044) （L172044）
