Measurement and Characterization of High Frequency Losses in Nonideal Litz Wires

被引：83

作者：

Rossmanith, Hans ^{[1
]}

Doebroenti, Marc ^{[1
]}

Albach, Manfred ^{[1
]}

Exner, Dietmar ^{[2
]}

机构：

[1] Erlangen Univ, Electromagnet Fields, D-91058 Erlangen, Germany

[2] Rudolf Pack GmbH & Co KG, D-51645 Gummersbach, Germany

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2011年 / 26卷 / 11期

关键词：

Loss measurement; magnet wire; skin effect; windings; RESISTANCE; MODEL;

D O I：

10.1109/TPEL.2011.2143729

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：

Commercially available litz wires are fabricated in several ways, depending on the number of strands and on the cost frame, either as twisted strands, as twisted bundles of twisted strands or as braided strands. The bundles have a finite pitch length, and the permutation of strands within this length is not perfect. This paper illustrates the effects of this nonideal construction on skin and proximity losses in the winding and indicates some applications where this may become important. Test setups have been developed to measure skin losses and proximity losses separately, thus offering the possibility of quantifying the quality of real litz wires by comparing the test results with the ideal behavior.

引用

页码：3386 / 3394

页数：9