摘要
设计了一种基于STM32和BQ76940的锂电池管理系统,给出了电池管理系统的软硬件设计,包括采样电路、MCU电路、均衡电路和电源电路。并结合开路电压和安时积分法估算出电池的SOC值,与实际的电池SOC值进行比较,计算出电池SOC值的误差在5%左右。
In this paper, a lithium battery management system based on STM32 and BQ76940 was designed and the system＇s hardware and software design, including sampling circuit, MCU circuit, balance circuit were presented. Through combined with the open-circuit voltage and the ampere hour integral method, the SOC value of the battery was estimated and compared with the actual SOC value to show that the error of the SOC value of the battery calculated is about 5%.
作者
汪官勇
余粟
WANG Guan-yong;YU Su(School of Mechanical Engineering;Engineering Training Center,Shanghai University of Engineering Science)
出处
《化工自动化及仪表》
CAS
2018年第11期890-892,共3页
Control and Instruments in Chemical Industry
基金
上海市科学技术委员会科研计划项目(17511110204)
