动力电池组电压采集及均衡控制策略研究  

The study of power battery pack voltage acquisition and balancing control strategy

作　　者：窦汝振[1] 翟世欢[2] 赵钢[2] 

机构地区：[1]中国汽车技术研究中心,天津300384 [2]天津理工大学天津市复杂控制理论与应用重点实验室,天津300384

出　　处：《电测与仪表》2015年第2期90-94,共5页Electrical Measurement & Instrumentation

基　　金：国家科技部863;电动汽车充电设备电气拉测技术及标准研究(2011AA11A279)

摘　　要：动力电池组是纯电动汽车的唯一动力来源,是整车的能源核心。对于正在运行的电动汽车,其电池管理系统需要实时监测电池组各单体电池电压,并以此实现电池单体之间的均衡控制。文章完成了基于LTC6802的十二节电池电压采集板的设计,并实现了电池组内均衡控制电路的设计。测试实验论证该实验板电压采集精度能够达到99.5%,均衡电路能够快速准确的实现单体电池之间的均衡。The power battery pack is the only power source for pure electric vehicles,as well as the vehicles＇ energy core. For electric vehicles in running condition,the battery management system need to real-time monitor the single battery voltages of the battery pack so as to achieve balanced control between the battery cells. The acquisition board＇s design of twelve battery voltages is completed based on LTC6802,and a balance control circuit within the battery pack is achieved. Testing experiments demonstrate that the experimental board＇s voltage acquisition accuracy can reach 99.5%,and the balance circuit can work fast and accurately.

关 键 词：动力电池 电压采集 均衡控制 电池管理系统 LTC6802 

分 类 号：TM912[电气工程—电力电子与电力传动]