基于Simscape的动力锂离子电池的建模与仿真

摘要

Along with the development of electric vehicles,the research of the power of lithium ion batteries has been paid more attention.It is very important to establish an accurate model of lithium ion battery.In this paper,the equivalent circuit model of lithium ion battery was used to build the model of the battery by using the Simulink/Simscape module.In the model,Ah calculating method was used for the lithium ion battery SOC estimation and the different working conditions of the power lithium ion battery model was simulated.The model could be integrated into the large system model with its simulation analysis of the electric vehicle system,which coulc save the cost of development.%随着电动车的普及,动力锂离子电池的研究受到人们的重视,建立精确的锂离子电池模型对动力锂离子电池的研究至关重要.采用锂离子电池的等效电路模型,利用Simulink的Simscape模块搭建电池的模型.在模型中运用安时计量法对锂离子电池的SOC进行估算,对动力锂离子电池模型在不同工作情况下进行仿真分析.所建锂离子电池模型可集成到电动汽车整车系统等大系统模型及其仿真分析中,节约研发成本.