Formulas of the Earth-Return Impedance and Admittance to analyze EMD

カテゴリ: 研究会(論文単位)

論文No: HV22014

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2022/01/17

タイトル(英語): Formulas of the Earth-Return Impedance and Admittance to analyze EMD

著者名: Ametani Akihiro (Doshisha University/Manitoba Hydro International/Chubu University),Xue Haoyan(State Grid Corporation of China/Chubu University),Yamamoto Kazuo (Chubu University)

著者名(英語): Akihiro Ametani(Doshisha University/Manitoba Hydro International/Chubu University),Haoyan Xue(State Grid Corporation of China/Chubu University),Kazuo Yamamoto(Chubu University)

キーワード: Ｅａｒｔｈ－ｒｅｔｕｒｎ　ｉｍｐｅｄａｎｃｅ／ａｄｍｉｔｔａｎｃｅ|ＥＭＤ|ｍｏｄｅ　ｔｒａｎｓｉｔｉｏｎ|ｈｉｇｈ　ｆｒｅｑｕｅｎｃｙ|ｗａｖｅ　ｐｒｏｐａｇａｔｉｏｎ|ＶＦＴ|Earth-return impedance/admittance|EMD|mode transition|high frequency|wave propagation|VFT

要約(日本語): The earth-return impedance and admittance of an overhead cable are necessary to study EMD due to VFTs in a GIS. Carson’s and Pollaczek’s formulas cannot deal with the displacement current of air and earth, and the uniform distribution of current is assume

要約(英語): The earth-return impedance and admittance of an overhead cable are necessary to study EMD due to VFTs in a GIS. Carson’s and Pollaczek’s formulas cannot deal with the displacement current of air and earth, and the uniform distribution of current is assumed. _x000D_ In 1955, Kikuchi made clear that Carson’s, Pollaczek’s and Sunde’s formulas were based on transverse electromagnetic (TEM) wave propagation, and thus could not be applied to study high frequency phenomena, because the wave propagation is TEM at low frequencies but at high frequencies it becomes TM and/or TE (non-TEM), which is called “mode transition” by Kikuchi. We need an accurate earth-return admittance to analyze the mode transition which is very important to study the EMD due to VFTs._x000D_

本誌: 2022年1月20日-2022年1月21日高電圧研究会

本誌掲載ページ: 77-82 p

原稿種別: 英語

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