Two-step Energy Minimization in Magnetic-Domain Model for Representation of Stress-Dependent Magnetization Property

Abstract

The multi-domain particle model for the magnetization analysis of electrical steel sheets requires long computation time when the applied magnetic field is large. In this study, we propose a method that can efficiently minimize the internal energy in two steps: the energy minimization by domain wall motion and the energy minimization including magnetization rotation. The proposed method can significantly reduce the computation time while maintaining the accuracy of magnetization analysis.