An Improved Modeling of Vector Magnetic Properties of Electrical Steel Sheet for FEM Application and Its Experimental Verification

• Published in: IEEE transactions on magnetics Vol. 45; no. 3; pp. 1162 - 1165
• Main Authors: Yanli Zhang, Yanli Zhang, Young Hwan Eum, Young Hwan Eum, Wei Li, Wei Li, Dexin Xie, Dexin Xie, Chang Seop Koh, Chang Seop Koh
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.03.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: 2-D measuring apparatus; Anisotropic magnetoresistance; Computational efficiency; Cross-disciplinary physics: materials science; rheology; Electrical steels; Exact sciences and technology; Finite element formulation; Finite element method; Finite element methods; Fourier series; Fourier series expansion; grain-oriented silicon steel sheet; Magnetic analysis; Magnetic field measurement; Magnetic hysteresis; Magnetic properties; Magnetism; Materials science; Mathematical analysis; Mathematical models; Other topics in materials science; Phase transformers; Physics; Sheet metal; Steel; Vectors (mathematics); Finite element method; Experimental test; 2-D measuring apparatus; Finite element formulation; Fourier series expansion; Magnetic sheet; grain-oriented silicon steel sheet; Modelling; Application; Expansion; Electric furnace steel; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2009.2012664

This paper presents an improved vector magnetic property model of anisotropic electrical steel sheet taking account of both the modeling accuracy and the computational cost when combined with finite element (FE) formulation. The reluctivity and hysteresis coefficients in the model are calculated using Fourier series expansion of measured B - and H -waveforms, which are obtained by using a self-developed double-excitation type 2-D measuring apparatus. The time-stepping FE formulation considering the improved vector magnetic property model is derived and applied to magnetic field analysis of a single phase transformer core model made of Grain-oriented silicon steel sheet. The convergence characteristic of non-linear FE analysis is discussed, and the effectiveness of the proposed magnetic property model in comparison with the experimental results is investigated.