Fast 2.5-D Loss Calculation for Round Litz Wires

被引：1

作者：

Luo, Tianming ^{[1
]}

Niasar, Mohamad Ghaffarian ^{[1
]}

Vaessen, Peter ^{[1
,2
]}

机构：

[1] Delft Univ Technol, Dept Elect Sustainable Energy, NL-2628 CD Delft, Netherlands

[2] KEMA Labs, NL-6812 DE Arnhem, Netherlands

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2024年 / 60卷 / 03期

关键词：

Wires; Finite element analysis; Three-dimensional displays; Magnetic fields; Impedance; Voltage; Eddy currents; Copper losses; eddy current; proximity effect; skin effect;

D O I：

10.1109/TMAG.2023.3329169

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：

Litz wire, which is used to suppress eddy current, always have complex structure. Solving its 3-D finite element model (FEM) requires high computational resources. This article presents a 2.5-D loss calculation method for round Litz wires, which do not need mesh. One pitch of Litz wire is set as an object. The exact structure is constructed by a recursive method and then is sliced into several sections per pitch. Each section is represented by a cross section area. Two-dimensional problems are solved based on an analytical method, which is based on magnetic vector potentials in quasi magneto-statics situation. One pitch of the Litz wire is approximately represented by the summation of 2-D problems. The proposed method is compared with 3-D FEM results, which shows the proposed method has good accuracy and fast computational speed.

引用

页码：1 / 4

页数：4

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