风能电动汽车储能电池的建模与智能充电

Modeling and intelligent charge of storage batteries for wind energy electric vehicles

分析了锂电池的结构特点和非线性的数学模型以及充电形式,在Matlab/Simulink中建立了锂电池的非线性仿真模型,采用模糊控制跟踪最大可接受充电电流,通过仿真,验证了锂电池的非线性模型的正确性,在最大可接受充电电流下,锂电池的输出电压和荷电状态(SOC)值缓慢上升到期望值,实现了智能充电。

The structural features of lithium battery, intelligent charge model and its nonlinear mathematic model were researched, by means of Matlab/Simulink, a nonlinear model of lithium battery was established, and a fuzzy control was applied to track the maximum charging current. The Simulink results verified the correctness of the proposed nonlinear model of lithium battery. At the acceptable maximum charging current, the output voltage and state of charge （SOC） of the battery slowly rise to expectation, and the intelligent charging is achieved.