摘要
选取二阶RC等效电路模型作为电池充电模型,根据各模型参数与温度和荷电状态(SOC)的关系,搭建考虑温度影响下的充电模型,并进行仿真分析。结果表明,与不考虑温度影响的模型相比,该模型在0和10℃低温下可将恒流仿真平均误差由2.94%和1.67%降至0.43%和0.29%。证明修正后的模型能准确模拟电池充电过程中的动态特性,温度是电池建模过程中不可忽视的因素。
The two order RC equivalent circuit model is selected as the battery charging model.According to the relationship between the model parameters and temperature as well as SOC,the charging model integrated the factor of temperature is built,and the simulation is analyzed.Results show that the model can reduce the mean error under the constant current charge from 2.94%and 1.67%to 0.43%,respectively,at temperatures of 0℃and 10℃.It is proved that the modified model can accurately simulate the dynamic characteristics of the battery charging process.Temperature is a crucial factor which can not be ignored for the process of battery modeling.
作者
王姣
康健强
WANG Jiao;KANG Jian-qiang(Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan Hubei 430070,China;;Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan University of Technology,Wuhan Hubei 430070,China)
出处
《电源技术》
CAS
CSCD
北大核心
2018年第12期1825-1827,1888,共4页
Chinese Journal of Power Sources
关键词
锂离子电池
充电模型
动态特性
lithium-ion battery
charging model
dynamic characteristics
