Estimation of Magnetization Curve of Electrical Steel Sheet under Elastic Stress

Abstract

The magnetic properties of electrical steel sheets, which are used for the magnetic cores of motors, are known to deteriorate with stress. To assess these deteriorations, it is necessary to measure magnetic properties because the degree of deterioration with stress varies depending on the grades of electrical steel sheets. In this report, an estimation method is proposed for the magnetization curve under elastic stress, and its estimation accuracy is verified through magnetic field analysis.