A Study on Wave Impedance of Corona Noise near a Single-Phase HVTL by Referencing the Conditions Specified in CISPR/TR18

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カテゴリ: 論文誌(論文単位)グループ名: 【B】電力・エネルギー部門発行日: 2024/06/01タイトル(英語): A Study on Wave Impedance of Corona Noise near a Single-Phase HVTL by Referencing the Conditions Specified in CISPR/TR18 著者名: Kazuo Tanabe (RIST, CST, Nihon University), Akihito Otani (Electronic Engineering, CST, Nihon University)著者名(英語): Kazuo Tanabe (RIST, CST, Nihon University), Akihito Otani (Electronic Engineering, CST, Nihon University)キーワード: high voltage transmission lines，corona noise，conversion factor，electric field，magnetic field，wave impedance要約(英語): The general method for predicting radio noise in the AM radio frequency band near high-voltage transmission lines (HVTL) caused by corona discharges on the conductor surface of HVTL is to first predict the horizontal magnetic field and then multiply it by a conversion factor of 120π (=the wave impedance in free space) to obtain the vertical electric field. The same method is adapted in CISPR/TR18, the only document on corona noise near HVTL published by IEC. This paper examines the wave impedance near a single-phase HVTL with an infinitely long horizontal conductor at 15m above the ground through theoretical and numerical electromagnetic field analysis, and it is found that at the CISPR position and a frequency of 0.5MHz, as specified in TR18, the wave impedance is 148πΩ instead of 120πΩ. This represents a difference of about 2dB in the vertical electric field level.本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.144 No.6 （2024）本誌掲載ページ: 393-394 p原稿種別: 研究開発レター／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/144/6/144_393/_article/-char/ja/ Show more