中国电机工程学报2012，Vol.32Issue(3)：43-48,6.
一种延长电动汽车蓄电池寿命的均衡充电控制策略
An Equalizing Charge Control Strategy to Extend Battery Cycle Life for Electric Vehicles
摘要
Abstract
In electric vehicles,battery string with many cells in series connection can provide higher voltage.But for each cell,any slight voltage difference can be amplified in the charging and discharging cycles.Unbalanced cell voltage in battery string will give rise to serious over-charging or over-discharging,and decrease the total storage capacity and the battery cycle life.Therefore,maintaining cell voltage at an equal charge/discharge level is significant for enhancing the battery cycle life.Aiming at the dissipative equalization circuits,the circuit model of battery equalization charge was studied,and an equalization charge control strategy which can not only achieves quick charge but also increases the battery cycle life was proposed.According to the proposed charge control strategy,corresponding experiments were implemented based on 72 V/ 120 AH laid-acid battery,and the experimental results show its feasibility and effectiveness.关键词
电池管理/循环寿命/均衡控制/串联充电/荷电Key words
battery management system/cycle life/equalizing control/battery in series connection charge/state of charge分类
信息技术与安全科学引用本文复制引用
徐顺刚,王金平,许建平..一种延长电动汽车蓄电池寿命的均衡充电控制策略[J].中国电机工程学报,2012,32(3):43-48,6.基金项目
国家自然科学基金项目(51177140) （51177140）
中央高校基本科研业务费专项资金资助(2010XS12)~~ （2010XS12）
