摘要
针对现有冗余均衡电路不能保证严重不均衡的电池组充分放电的问题,提出一种带有开关电容结构的增强型冗余均衡电路。分析了电路工作原理,研究了相应控制策略,为验证方案的可行性,搭建了实验平台并进行对比实验,结果表明增强型冗余均衡电路具有更好的均衡效果,可使电池组充分放电,延长放电时间。
The existing redundant equalization circuit can’t guarantee the full discharge of the battery pack under severe unbalanced conditions.Aiming at the problem,an enhanced redundant equalization circuit with a switch-capacitor structure is proposed.The working principle of the circuit is analyzed and its corresponding control strategy is studied.An experimental platform is built and comparative experiments are implemented to verify the feasibility of the scheme.Experiment result shows that the enhanced redundant equalization circuit has a better equalization effect,which can fully discharge the battery pack and extend the discharge time.
作者
田芝华
黄迪
董艳丽
雷雨
TIAN Zhi-hua;HUANG Di;DONG Yan-li;LEI Yu(State Grid Chongqing Maintenance Company,Chongqing 400039,China)
出处
《电力电子技术》
CSCD
北大核心
2021年第6期61-63,共3页
Power Electronics
关键词
电池组
均衡电路
控制策略
battery pack
equalization circuit
control strategy
