电动汽车动力电池运行中SOC性能评估分析  

SOC Performance Evaluation Analysis in Electric Vehicle Power Battery Operation

作　　者：原帅[1] 王悦[2] 李超[1] YUAN Shuai WANG Yue LI Chao(1nner Mongolia Power Research Institute, Hohhot 010020. China Hohhot Power Supply Bureau, Hohhot 010050, China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]呼和浩特供电局,呼和浩特010050

出　　处：《内蒙古电力技术》2016年第6期81-84,共4页Inner Mongolia Electric Power

基　　金：内蒙古电力(集团)有限责任公司2014年第一批科技项目(201401035)

摘　　要：以内蒙古电力科学研究院电动汽车使用的锂动力电池充放电试验为依据,利用监控系统积累的电动汽车动力电池运行数据,采用动力电池性能测量方法,结合实际运行状态下温度、均衡性、充放电电流等对动力电池的影响,从电压一致性及环境温度和放电速率等方面对电池荷电状态(SOC)进行评估分析,认为放电倍率和环境温度是影响SOC评估的重要因素,建议运行中的动力电池应尽量避免大电流放电,以提高电池的使用寿命和运行经济性。Based on the lithium battery charging and discharging test of the electric vehicles in Inner Mongolia electric power research institute,using electric vehicle power battery running data under the monitoring system,adopt the power battery performance measurement methods,combined with the influence factors to the power batteries as the temperature,the balance,the charge and discharge current of the power battery,make the assessment from the voltage consistency and environment temperature and discharge rate of SOC.The result showed that discharge rate and ambient temperature are important factors influencing the appraising of SOC.Suggest that the running power battery should avoid large current discharge to improve the service life of the battery and the the economy of the battery.

关 键 词：电动汽车 动力电池 电池荷电状态 电压一致性 

分 类 号：TM912.9[电气工程—电力电子与电力传动]