A Study on the Effect of a Source Circuit on Switching Surges

カテゴリ: 研究会(論文単位)

論文No: HV18007

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2018/01/18

タイトル(英語): A Study on the Effect of a Source Circuit on Switching Surges

著者名: Ametani Akihiro(Polytechnique Montreal),Xue Haoyan(Polytechnique Montreal),Cervantes Miguel(Polytechnique Montreal),Kocar Ilhan(Polytechnique Montreal),Noda Taku(CRIEPI)

著者名(英語): Akihiro Ametani(Polytechnique Montreal),Haoyan Xue(Polytechnique Montreal),Miguel Cervantes(Polytechnique Montreal),Ilhan Kocar(Polytechnique Montreal),Taku Noda(CRIEPI)

キーワード: ｓｗｉｔｃｈｉｎｇ　ｓｕｒｇｅ|ｓｏｕｒｃｅ　ｃｉｒｃｕｉｔ|ｃｏｍｐｌｅｘ　ｎｅｔｗｏｒｋ|ｉｎｉｔｉａｌ　ｃｈａｒｇｅ|ＰＩ　ｅｑｕｉｖａｌｅｎｔ|ＥＭＴＰ|switching surge|source circuit|complex network|initial charge|PI equivalent|EMTP

要約(日本語): This paper has investigated the effect of a source circuit on switching surges in an inter-connected transmission system. The steepness of the switching surge wave-front is much higher in the case of a complex (remote-end) source circuit than in the case of an inductive source. On the contrary, the dominant oscillating frequency is lower in the complex source circuit. When transmission lines are connected to the bus (source circuit), the maximum switching over-voltage tends to decrease, but the steepness increases proportionally to the number of connected transmission lines. The oscillating frequency tends to increase as the number increases. A lumped PI equivalent representation of the connected transmission lines shows a satisfactory accuracy to investigate the steepness and the overall wave-shape of the switching surge. The surge impedance (resistance) representation is less accurate and cannot be used to discuss the overall wave-shape.

要約(英語): This paper has investigated the effect of a source circuit on switching surges in an inter-connected transmission system. The steepness of the switching surge wave-front is much higher in the case of a complex (remote-end) source circuit than in the case of an inductive source. On the contrary, the dominant oscillating frequency is lower in the complex source circuit. When transmission lines are connected to the bus (source circuit), the maximum switching over-voltage tends to decrease, but the steepness increases proportionally to the number of connected transmission lines. The oscillating frequency tends to increase as the number increases. A lumped PI equivalent representation of the connected transmission lines shows a satisfactory accuracy to investigate the steepness and the overall wave-shape of the switching surge. The surge impedance (resistance) representation is less accurate and cannot be used to discuss the overall wave-shape.

原稿種別: 英語

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