汽车电池均衡管理技术分析与探究

Analysis and exploration of automobile battery balance management technology

通常纯电动汽车的动力电池是由若干单体电池组合而成,每一个单体电池荷电状态会存在一定程度的差异,而此差异会直接决定动力电池的使用性能,因此需要对动力电池进行均衡管理。其中锂离子动力电池的主要研究集中在电池单体技术、热管理技术以及能量管理技术等方面,因此BMS(电池管理系统)对动力电池均衡系统尤为重要。本文通过对电池均衡管理系统进行基本的介绍,并建立电池等效模型,为后续电池均衡模型的仿真提供理论参考,进而为电池均衡管理提供重要的研究价值。

In general,the power battery of a pure electric vehicle is composed of several single batteries.Each single battery has a certain degree of difference in its state of charge,which directly determines the use performance of the power battery.Therefore,it is necessary to balance the management of the power battery.Among them,lithium ion power battery mainly focuses on cell technology,thermal management technology and energy management technology.Therefore,BMS(battery management system)is particularly important for power battery balance system.In this paper,the basic introduction of the battery balance management system and the establishment of the battery equivalent model provide a theoretical reference for the subsequent simulation of the battery balance model,and then provide an important research value for the battery balance management.