Modeling of Anisotropic Magnetic Hysteresis Properties of Electrical Steel Sheet Based on the Multi-scale Magnetic Domain Energy Model

被引：0
作者：
Li M. [1 ]
Zhang Y. [1 ]
Wang Z. [1 ]
Zhang D. [1 ]
Jiang W. [1 ]
Xie D. [1 ]
机构：
[1] Ministry of Education, Key Laboratory of Special Motors and High-voltage Electrical Apparatus, Shenyang University of Technology, Liaoning Province, Shenyang
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷
基金：
中国国家自然科学基金;
关键词：
electrical steel sheets; hysteresis; magnetic domain energy; multi-scale model;
D O I：
10.13334/j.0258-8013.pcsee.210414
中图分类号：
学科分类号：
摘要：
The accurate estimation of hysteresis characteristics in the electrical steel sheets affects the validity of electromagnetic simulation results of electrical equipment such as transformers. With the increasing complexity of the working conditions of electrical products, in comparison with the phenomenological hysteresis model that focuses on the derivation of mathematical formulas, the physical hysteresis model has gradually attracted the attention of domestic and foreign scholars due to such advantages as explicit physical concept, simple parameter identification process, and good suitability to complex working condition. This paper proposed a multi-scale magnetic domain energy model to describe the hysteresis anisotropy of electrical steel sheets. The hysteresis energy density function was employed to explain the effect of magnetization history on the present magnetization state, and a more effective description and explanation of hysteresis anisotropy from the perspective of magnetic moment rotation was presented. The average value of the crystal grain magnetic behavior was used to represent the polycrystalline magnetic characteristics, and then a multi-scale hysteresis characteristic was estimated from magnetic domain, crystal grain to polycrystalline. Meanwhile, a Kerr microscope was used to observe the dynamic changes of magnetic domains during the anisotropic magnetization process, and combined with the macroscopic hysteresis loop to explain the magnetic anisotropy of electrical steel sheets. At last, the experimentally measured hysteresis loops verified the validity of the multi-scale magnetic domain energy model. The research results show that the multi-scale magnetic domain energy model with the hysteresis energy can simplify the parameter identification process of conventional domain models, and improve the computation efficiency, which is helpful for advancing the engineering application of physical hysteresis models. ©2022 Chin.Soc.for Elec.Eng.
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页码：237 / 245
页数：8
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