FDTD Analysis of Insulator Voltages in the Presence of Corona for Direct Lightning Strike to a Phase Conductor

カテゴリ: 部門大会

論文No: 252

グループ名: 【B】平成26年電気学会電力・エネルギー部門大会

発行日: 2014/09/10

タイトル(英語): FDTD Analysis of Insulator Voltages in the Presence of Corona for Direct Lightning Strike to a Phase Conductor

著者名: Huu Thang Tran (鶴岡工業高等専門学校),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): HuuThang Tran(Tsuruoka National College of Technology),Yoshihiro Baba(Doshisha University),Naoto Nagaoka(Doshisha University),Akihiro Ametani(Doshisha University),Naoki Itamoto(Hokuriku Electric Power Company)

キーワード: lightning|lightning|corona discharge|finite-difference time-domain method|insulator voltage

要約(日本語): A simplified model of corona discharge for the finite-difference time-domain (FDTD) computations has been applied to analysis of transient voltages across insulators of a transmission line subjected to direct lightning strikes to the upper-phase conductor. In the simulation, three 40-m towers, separated by 300 m, with one overhead ground wire and three phase conductors are employed. The reduction of insulator-voltage peak due to the corona is significant only for the upper phase conductor.

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