Dynamic hysteresis modeling of silicon steel sheet considering excess eddy-current loss

Article type: Research Article

Authors: Minowa, Naoki^a | Takahashi, Yasuhito^a; | Fujiwara, Koji^a | Ahagon, Akira^b | Matsuo, Tetsuji^c

Affiliations: [a] Department of Electrical Engineering, Doshisha University, Kyoto, Japan | [b] JSOL Corporation, Tokyo, Japan | [c] Graduate School of Engineering, Kyoto University, Kyoto, Japan

Correspondence: [*] Corresponding author: Yasuhito Takahashi, Department of Electrical Engineering, Doshisha University, Kyoto 610-0321, Japan. Tel.: +81 774 65 6266; Fax: +81 774 65 6266; E-mail: [email protected]

Abstract: In this paper, we investigate modeling methods of magnetic properties considering the hysteretic properties and the excess eddy-current loss. First, a simple method in which an excess magnetic field given by the Bertotti’s model is added to a surface magnetic field as a post-processing of the 1-D finite-element analysis is compared with a 1-D finite-element method directly considering an excess magnetic field. Additionally, homogenization methods of magnetic property of an electrical steel sheet with the Bertotti’s model are discussed from the standpoints of computational accuracy and costs.

Keywords: Magnetic hysteresis, excess eddy-current loss, homogenization

DOI: 10.3233/JAE-171008

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 59, no. 1, pp. 217-226, 2019