FDTD Analysis of Corona Effect on Lightning-induced Voltages

カテゴリ: 研究会(論文単位)

論文No: HV14031

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2014/01/24

タイトル(英語): FDTD Analysis of Corona Effect on Lightning-induced Voltages

著者名: Tran Huu Thang (同志社大学),馬場 吉弘(同志社大学),長岡 直人(同志社大学),雨谷 昭弘(同志社大学),板本 直樹(北陸電力)

著者名(英語): Tran HuuThang(Doshisha University),Baba Yoshihiro(Doshisha University),Nagaoka Naoto(Doshisha University),Ametani Akihiro(Doshisha University),Naoki Itamoto(Hokuriku Electric Power Company)

キーワード: Lightning|Corona discharge|Finite-difference time-domain method|Lightning induced voltage

要約(日本語): In this paper, we have applied a simplified model of corona dischare using the finite-difference time-domain (FDTD) method to analyzing lightning-induced voltages at different points along a 5-mm radius,1-km long single overhead wire in the presence of corona space charge around the wire. Both negative and possitve polarities of cloud-to-ground strokes have been considered. The magnitudes of FDTD-computed lightning-induced voltages in the presence of corona discharge are larger than those computed without considering corona, although the increase is less significant than that in the previous studies. The disparity is likely to be related to the use of different charge-voltage diagrams.

要約(英語): In this paper, we have applied a simplified model of corona dischare using the finite-difference time-domain (FDTD) method to analyzing lightning-induced voltages at different points along a 5-mm radius,1-km long single overhead wire in the presence of corona space charge around the wire. Both negative and possitve polarities of cloud-to-ground strokes have been considered. The magnitudes of FDTD-computed lightning-induced voltages in the presence of corona discharge are larger than those computed without considering corona, although the increase is less significant than that in the previous studies. The disparity is likely to be related to the use of different charge-voltage diagrams.

原稿種別: 日本語

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