双向无损蓄电池均衡系统的设计与实现  

Design & implementation of bidirectional non-dissipative battery balancing system

作　　者：张金龙[1] 夏超英[1] 

机构地区：[1]天津大学自动化学院,天津300072

出　　处：《电工电能新技术》2012年第2期15-18,92,共5页Advanced Technology of Electrical Engineering and Energy

摘　　要：针对磷酸铁锂蓄电池在串联使用时各单体间存在的电压差的问题,本文结合当前流行的均衡策略具体设计实现了一套双向无损均衡系统。硬件方面,本系统通过资源的有效配置实现了信号控制电路与均衡电路的集成;软件方面,则设计了一种模块分组均衡的策略。实验结果表明,该系统可以有效降低电池单体间的不一致性,并具有较快的均衡速度和良好的均衡精度。To solve the un-uniformity problem of each cell voltage when the LiFePO4 batteries operate under series-connected condition,a bidirectional non-dissipative battery balancing system is designed and implemented.Signal processing circuit and balancing circuit are integrated through effective resource allocation;and a novel group-balancing strategy is designed to control the balancing process.It is confirmed by the experimental result that the voltage differences among the battery cells could be effectively restrained;also a fast balancing speed and a good balancing accuracy can be realized.

关 键 词：储能电感 磷酸铁锂电池 双向均衡 分组均衡策略 

分 类 号：TM911[电气工程—电力电子与电力传动] TM912