电池组均衡技术研究现状

Research status of equalization technology for series batteries

电池组均衡技术是电池管理系统关键技术之一,可根据电池组状态信息对电池组进行实时均衡管理,避免不一致性的扩大,提高电池组容量利用率,能在一定程度上减缓电池组老化速度。本文深入分析了国内外的电池组均衡方法,按照均衡电路、控制策略以及系统结构3个方面,比较了各种均衡方法的优缺点及其适用场合,列举了不同方法的研究情况,给出了串联电池组均衡技术研究亟待解决的问题与发展方向展望。

Battery equalization management module is one of the most important function modules of battery management system,it can avoid inconsistency by real-time balance management according to the battery status information,which not only improve the battery group capacity utilization rate but also slow down the aging speed of battery group in a certain extent.This paper deeply analyzes the domestic and foreign equalization technology,and compares their advantages and disadvantages as well as applicable occasions according to the equalization circuit,control strategy and system structure of the three aspects ,lists the research status of different methods,combined with the battery equalization technology research problems to be solved in series,the direction of its development is prospected.