Phase Velocity on Overhead Conductors in High Frequencies

カテゴリ: 部門大会

論文No: 425

グループ名: 【B】平成28年電気学会電力・エネルギー部門大会

発行日: 2016/09/05

タイトル(英語): Phase Velocity on Overhead Conductors in High Frequencies

著者名: Akihiro AMETANI(Polytechnique Montreal),Yoshihiro BABA(Doshisha University),Yoshiko MIYAMOTO(Kansai Electric Power Co.),Takashi ASADA(Chubu Electric Power Co.),Haoyan XUE(Polytechnique Montreal),Jean Mahseredjian(Polytechnique Montreal)

著者名(英語): Akihiro AMETANI|Yoshihiro BABA|Yoshiko MIYAMOTO|Takashi ASADA|Haoyan XUE|Jean Mahseredjian

キーワード: phase velocity|high frequency|overhead conductor|TL approach|NECFDTD,phase velocity,high frequency,overhead conductor,TL approach,NECFDTD

要約(日本語): This paper is focused to investigate a possibility of the phase velocity on an overhead conductor exceeding the light velocity in free space based on a transmission line (TL) approach and numerical electromagnetic analysis methods. When an accurate earth-return impedance derived by Kikuchi and Wedepohl and an earth-return admittance by Wise and Nakagawa are adopted, the phase velocity can exceed the light velocity in a frequency region where mode transition from the earth-return wave propagation to Sommerfeld-Goubau propagation occurs. Similar phenomena are also observed in NEC and FDTD computated results.

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