文档介绍：An Evolutionary Approach for Modeling the Equivalent Circuit for
Electrochemical Impedance Spectroscopy
Hongqing Cao', Jingxian Yuz ,Lishan Kang'
I $ate. Key Laboratory of Software Engineering; Wuhan University, Wuhan 430072, China
-email: (jxyu, kang)***@whu,
.-
-Depanment1 of Chemistry, Wuhan University, Wuhan 430072, China email: ******@whu.
Abstract- This paper proposes an evolutionary method [3][41. But Some problems exist in
approach to build the equivalent circuit model for using this method, like the sensitivity to initial values, the
electrochemical impedance spectroscopy. It works by difficulty pute the partial derivative expression of
using a hybrid evolutionary modeling algorithm each parameter for plex circuits and the great
(HEMA) whose main idea is tn embed a ic likelihwd to trap into local optima.
algorithm (GA) in gene expression programming (GEP) In view of all above analysis, we consider that the most
where GEP is employed to discoverand optimize the desirable way to analyze electrochemical impedance data
. structure of a circuit, while the GA is employed to is to build the equivalent circuit model automatically as
optimize the parameters of all the ponents well as optimize ponent parameters simultaneously
contained in the circuit. By running the HEMA, the by using some intelligent approach. Hence this pa