Modeling of Excess Loss Due to Variation of Grain Orientation in Non-Oriented Electrical Steel Sheet

Hamzehbahmani, Hamed; Gao, Yanhui; Guan, Weimin; Tian, Cuihua; Yuan, Jiaxin; Chen, Baichao; Hamzehbahmani, Hamed

Abstract

To clarify the mechanism of the excess loss in a Non-Oriented (NO) electrical steel sheet, a modeling of excess loss taking account of the variation of grain orientation is proposed in this paper. In the proposed method, the NO steel sheet is modeled by grains with random orientations, then an uniaxial anisotropic magnetic characteristic is considered in each grain. The nonlinear eddy current analysis of a simple model composed of cubic grains with different easy axes is carried out by using the initial anisotropic BH curves of a Grain-Oriented steel sheet. Then, the calculated eddy current loss is compared with the measured values of an actual NO steel sheet. It is shown that the proposed model can represent the excess loss in low flux density region, but not in high flux density region.

Citation

Hamzehbahmani, H., Gao, Y., Guan, W., Tian, C., Yuan, J., Chen, B., & Hamzehbahmani, H. (in press). Modeling of Excess Loss Due to Variation of Grain Orientation in Non-Oriented Electrical Steel Sheet.

• Conference Name: ISEM 2023: 21st International Symposium on Applied Electromagnetics and Mechanics,
• Conference Location: Hachioji, Tokyo, Japan
• Start Date: Nov 12, 2023
• End Date: Nov 15, 2023
• Acceptance Date: Sep 29, 2023
• Deposit Date: Oct 9, 2023
• Public URL: https://durham-repository.worktribe.com/output/1787764
• Publisher URL: https://www.isem2023.org/