Calculation of losses in laminated ferromagnetic materials

被引：13
|
作者：
Sebestyén, I
Gyimóthy, S
Pávó, J
Bíró, O
机构：
[1] Budapest Univ Technol & Econ, Dept Electromagnet Theory, H-1521 Budapest, Hungary
[2] Graz Tech Univ, IGTE, A-8010 Graz, Austria
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2004年 / 40卷 / 02期
基金：
奥地利科学基金会; 匈牙利科学研究基金会;
关键词：
cell method; eddy currents; finite element methods; lamination stack;
D O I：
10.1109/TMAG.2004.824894
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A numerical method for calculation of the power losses of nonlinear laminated ferromagnetic cores is presented. The calculation is made in two subsequent steps. In the first step, the approximate magnetic field distribution in the material is determined assuming a nonlaminated bulk nonlinear ferromagnetic material with anisotropic conductivity. In the second step, the nonlinear ferromagnetic material of the laminated core is replaced to linear material with spatially inhomogeneous permeability. The actual permeability distributions of the lamination are determined based on the magnetic field obtained from the first calculation and the nonlinear B-H curve of the material. In this paper, the outlined method is verified through calculations and measurements made on simple benchmark arrangements. Different methods for assigning the inhomogeneous permeability are also investigated.
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页码：924 / 927
页数：4
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