An Improvement of a Conductor Subdivision Method for Calculating the Series Impedance Matrix of a Transmission Line Considering the Skin and Proximity Effects

Miki Toru, Noda Taku

doi:10.1541/ieejpes.128.254

Bibliographic Information

Other Title

表皮効果および近接効果を考慮可能な導体分割に基づく線路直列インピーダンス計算手法の改良
ヒョウヒコウカオヨビキンセツコウカオコウリョカノウナドウタイブンカツニモトズクセンロチョクレツインピーダンスケイサンシュホウノカイリョウ

Search this article

Description

This paper describes an improvement of a conductor-subdivision-based method for calculating the frequency-dependent series impedance matrix of arbitrary cross-section conductors considering both skin and proximity effects. Analytical skin-effect formulas are available, but they are only for some simple conductor shapes and the proximity effect is ignored. Conductor-subdivision-based approaches can take into account both skin and proximity effects and are applicable to arbitrary cross-section conductors. However, at high frequencies where skin depth becomes very small, the subdivision-based approaches require an unrealistic number of subdivision. The proposed improvement assumes a current distribution obtained by an analytical skin-effect formula at surface subconductors for accurately representing the skin effect at high frequencies. Numerical examples show that the proposed improvement accurately reproduces the skin and proximity effects with a small number of subdivision even at high frequencies.

Journal

IEEJ Transactions on Power and Energy

IEEJ Transactions on Power and Energy 128 (1), 254-261, 2008

The Institute of Electrical Engineers of Japan

Keywords

Details 詳細情報について

Export

Report a problem