Identification of the Jiles-Atherton model parameters using simulated annealing method

This paper presents a method and the experimental measurement system for the determination of Jiles-Atherton model parameters of the 30ZH120 electrical steel sheet. The paper utilities Epstein Square devices to proceed the experiment and measurement on a group of hysteresis loops of some certain transformer which use the 30ZH120 electrical steel sheet under two different lap ways. The approach relies on simulated annealing optimization method in order to minimize the error between the measured and modeled hysteresis curves and yield the best five Jiles-Atherton model parameters. A convenient program based on the Simulink platform is developed that can identifies the J-A model parameters automatically from experimental saturated hysteresis loop which is used to model the nonlinear characteristics of the electrical steel sheet. Research shows that Simulated annealing Optimization method get satisfactory results.