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Reproduction of Electromagnetic Field Waveforms of Subsequent Return Strokes Hitting Tokyo Skytree over Lossy Ground

Reproduction of Electromagnetic Field Waveforms of Subsequent Return Strokes Hitting Tokyo Skytree over Lossy Ground

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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: 2015/07/01

タイトル(英語): Reproduction of Electromagnetic Field Waveforms of Subsequent Return Strokes Hitting Tokyo Skytree over Lossy Ground

著者名: Mikihisa Saito (Central Reserch Institude of Electric Power Industry), Toru Miki (Central Reserch Institude of Electric Power Industry), Takatoshi Shindo (Central Reserch Institude of Electric Power Industry), Hideki Motoyama (Central Reserch Institude of

著者名(英語): Mikihisa Saito (Central Reserch Institude of Electric Power Industry), Toru Miki (Central Reserch Institude of Electric Power Industry), Takatoshi Shindo (Central Reserch Institude of Electric Power Industry), Hideki Motoyama (Central Reserch Institude of Electric Power Industry), Masaru Ishii (APET, School of Engineering, The University of Tokyo), Takeo Sonehara (Shoden Co., Ltd.), Hiroshi Taguchi (Tobu Tower Skytree Co., Ltd.), Akira Tajima (Tobu Tower Skytree Co., Ltd.), Akinobu Fujisawa (Tobu Tower Skytree Co., Ltd.)

キーワード: lightning current,Tokyo Skytree,LEMP,upward lightning,NEC-4

要約(英語): Observation of lightning current by using Rogowski coils started in February 2012 at Tokyo Skytree, which is a 634-m high freestanding broadcasting tower. Electromagnetic field waveforms are also observed by capacitive antennas at several tens of kilometers from the tower. Simultaneously observed lightning current and electric field waveforms are reproduced by using an electromagnetic model of a return stroke on lossy ground with the help of NEC-4. Electromagnetic field waveforms are reproduced by using an inclined lightning channel reconstructed from observed images. It turns out that the electromagnetic field waveforms are considerably affected by lightning channel geometry and ground conductivity.

本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.135 No.7 (2015)

本誌掲載ページ: 472-478 p

原稿種別: 論文/英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/135/7/135_472/_article/-char/ja/

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