电池SOC估计方法分析

An Analysis of battery SOC estimation method

锂离子动力电池系统的荷电状态直接反应电池的使用情况。尤其对于以锂电池为能量来源的新能源汽车,该参数常用来衡量电动汽车的续航里程。为此,研究电池荷电状态的估计方法,以及国内外在荷电状态上的研究进度具有重要意义。本文就近年来国内外在电池荷电状态上的研究进行分析,介绍了目前主流的电池荷电状态状态估计方法,以及每种方法的特点。

The charged state of lithium-ion power battery system directly reflects the service condition of battery.Especially for new energy vehicles that use lithium batteries as energy sources,this parameter is often used to measure the cruising range of electric vehicles.Therefore,it is of great significance to study the estimation method of the state of charge of the battery and the research progress on the state of charge at home and abroad.This paper analyzes the research on battery state of charge in recent years at home and abroad,and introduces the current mainstream battery state of charge estimation methods and the characteristics of each method.