Two-step method for calculation of eddy current losses in a laminated transformer core

被引：4

作者：

Frljic, Stjepan ^{[1
]}

Trkulja, Bojan ^{[1
]}

机构：

[1] Univ Zagreb, Fac Elect Engn & Comp, Unska 3, Zagreb 10000, Croatia

来源：

IET ELECTRIC POWER APPLICATIONS | 2020年 / 14卷 / 09期

关键词：

transformer cores; eddy current losses; laminations; mesh generation; finite element method; 2D model; 2D laminated domain; 3D laminated domain; lamination; homogenisation method; two-step method; laminated transformer core; edge effects; 2D mesh; brute force approach; DOMAIN HOMOGENIZATION TECHNIQUE; IRON CORES; FEM; COMPUTATION; STACKS; MODEL;

D O I：

10.1049/iet-epa.2019.0860

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 method for calculating eddy currents and corresponding losses in a laminated transformer core using finite element method is developed. The method is based on the transformation of the 3D model into the corresponding 2D model. The 2D laminated domain coincides with the slice of the 3D laminated domain. Eddy currents are therefore considered as 2D phenomena within lamination, instead of the 1D approximation, thus taking into account the edge effects. By using the 2D mesh, the number of finite elements is drastically reduced. The validity and precision of the method are verified by comparing the results of the simulation with the results obtained using the brute force approach and with the results obtained using the homogenisation method.

引用

页码：1577 / 1583

页数：7

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