基于超级电容模型的参数辨识及其仿真研究

Study of Supercapacitor's Parameter Identification Based on Equivalent Circuit Model

研究和分析了超级电容三分枝模型建立的理论基础,阐述了参数辨识的概念和递推最小二乘法应用于参数辨识的基本原理,在此基础上结合Matlab,编写了递推最小二乘法辨识程序,实现了对超级电容三分枝模型传递函数的辨识,最后通过对辨识结果的分析和仿真,验证了三分枝模型的正确性。

This paper researches and analyses the theoretical basis of three branches equivalent circuit model of supercapacitor. This paper also introduces the concept of parameter identification and the basic principle of how to apply least squares theory to parameter identification. Based on the Matlab,the program of the least squares is compiled. Then the least squares used in supercapacitor＇s parameter identification is realized. At last the three branches equivalent circuit model of supercapacitor is verified by the simulation of identification results.