摘要
为实现48 V轻混系统电池组的主动均衡,提高能量利用率,首先对某车型48 V轻混系统电池进行了成组设计及一致性检验,然后确定了主动均衡电路拓扑结构,基于电池管理系统(BMS)采集的电池端电压等信息,对主动均衡电路的均衡开启阈值及均衡控制策略进行了设计。仿真分析结果表明,主动均衡后电池模组的荷电状态(SOC)偏差均不超过0.005。
In order to realize active equalization of 48 V mild hybrid battery pack,and improve energy utilization rate,firstly the group design and consistency check of 48 V mild hybrid system battery of a vehicle were conducted,then the topological structure of the active equalization circuit was determined,and then the equalization opening threshold and equalization control strategy of active equalization circuit were designed based on the information of the battery terminal voltage collected by the BMS.The results of simulation analysis indicate that the State Of Charge(SOC) bias errors of the battery module after active equalization does not exceed 0.005.
作者
蓝仁恩
魏义礼
陈博伟
李育涵
贾永凯
Lan Ren’en;Wei Yili;Chen Bowei;Li Yuhan;Jia Yongkai(Third Representative Office of Navy Equipment Department Beijing Bureau,Beijing 100081;Weihai Guangtai Airport Equipment Co.,Ltd.,Weihai 264200;Harbin Institute of Technology,Weihai 264209)
出处
《汽车工程师》
2023年第12期25-31,共7页
Automotive Engineer
关键词
48
V电池系统
电池管理系统
主动均衡
模糊控制
48 V battery system
Battery Management System(BMS)
Active equalization
Fuzzy control
