关键词: 锂电池；电池管理系统；电池均衡；仿真分析；Simulink

Abstract: Electric vehicles are becoming more and more popular, with an increasing market share. The vehicle's driving range and the safety of power batteries have always been unavoidable issues in the development of electric vehicles. The inconsistency between power battery units can lead to a decrease in the available capacity of the battery, shorten the vehicle's driving range, and also cause overcharging and discharging problems of the power battery and then lead to safety accidents. Balancing operations between battery cells can reduce differences between cells and improve consistency. The balancing of batteries is a lengthy process, which leads to time-consuming and inconvenient development and research on the performance of balancing algorithms. This article proposes a battery balancing strategy modeling, simulation and analysis method, which uses Simulink software to model battery and balancing execution environment. Through simulation verification, this method can effectively simulate battery balancing scenarios, quickly verify the performance of balancing algorithms, and improve development efficiency.

Key words: Lithium battery; Battery management system; Battery balance; Simulation analysis; Simulink