电动汽车用锂离子动力电池电感主动均衡系统

Inductance based Active Balancing of Lithium ion Batteries for EV Applications

摘要:

研究了一种单体锂离子动力电池电感主动均衡方案，该方案通过相应的开关控制，将高电量电池的多余能量存储到电感中，并通过电感将能量转移到低电量电池中.详细介绍了方案的结构设计、系统仿真及参数选择、优化.以典型车用锂离子电池模块进行均衡方案测试，结果表明，该方案具有较好的均衡效果和较高的均衡效率.

Abstract:

An inductance based active balancing system is studied. With a reasonable control of the switches, the system shifts energy from the cells with higher state of charge (SOC) to those with lower SOCs. The architecture design, simulation analysis together with the determination and optimization of the system parameters are introduced in detail. A typical power Li ion battery module for electric vehicles is used to validate the proposed balancing system, and the test results indicate that the system works effectively with a high balancing efficiency.