中文摘要：

根据超级电容器等效电路模型的分析和复数阻抗综合方法，经试验数据拟合优化，建立了超级电容器等效阻抗函数。通过该函数仿真了超级电容器的电压、电能容量、电流和荷电状态等性能指标的动态特征。经试验验证，该函数可预测超级电容器在充、放电过程中的电流、电压和荷电状态的动态变化。

英文摘要：

Based on the equivalent circuit model of a supercapacitor and the complex impedance synthesis, a impedance function for the supercapacitors was established through fitness optimization of experimental data. The supercapacitors characteristics,such as voltage,capacity, current and state-of-charge,were simulated using the impedance function. The result is effective for supercapacitors to be used on the simulation and optimization of energy management system in pure electric vehicles or hybrid electric vehicles.