Analysis and Prediction of AC Resistance of Litz Wire with Rectangular Cross-Section

Shota Kawahara, Kazuhiro Umetani, Eiji Hiraki

研究成果: Conference contribution

抄録

The Litz wire is widely utilized in recent high frequency switching regulators as a magnetic wire with small AC resistance. The AC resistance of the Litz wire is dependent on the twisting structure of the strands as well as the resultant cross-section geometry of the Litz wire. Therefore, optimization of the Litz wire is becoming important, although the numerical prediction of the AC resistance is difficult due to the complicated structure of the Litz wire. Certainly, a recent study has proposed an analytical AC resistance prediction method. However, this method cannot be applied to Litz wires with the rectangular cross-section, which is recently developed to improve the packing factor of the winding. This paper aims at extending this previous method to cover these Litz wires by partly utilizing a simple static magnetic field FEM analysis. The experiment revealed successful AC resistance prediction of the Litz wire with the rectangular cross-section.

本文言語English
ホスト出版物のタイトルECCE 2020 - IEEE Energy Conversion Congress and Exposition
出版社Institute of Electrical and Electronics Engineers Inc.
ページ3273-3279
ページ数7
ISBN(電子版)9781728158266
DOI
出版ステータスPublished - 2020 10 11
イベント12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, United States
継続期間: 2020 10 112020 10 15

出版物シリーズ

名前ECCE 2020 - IEEE Energy Conversion Congress and Exposition

Conference

Conference12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
CountryUnited States
CityVirtual, Detroit
Period20/10/1120/10/15

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology

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