A novel islanding detecion method based on minute asymmetrical current injection for three-phase grid-connected PV inverters

カテゴリ: 全国大会

論文No: 4-070

グループ名: 【全国大会】平成19年電気学会全国大会論文集

発行日: 2007/03/15

タイトル(英語): A novel islanding detecion method based on minute asymmetrical current injection for three-phase grid-connected PV inverters

著者名: 孫 向東(東京工芸大学),松井 幹彦(東京工芸大学)

著者名(英語): Xiangdong Sun(Tokyo Polytechnic University),Mikihiko Matsui(Tokyo Polytechnic University)

キーワード: 単独運転防止

要約(日本語): A novel islanding detection method is proposed based on minute asymmetrical current injection in this paper. For three-phase currents, the positive half cycle and negative half cycle are slightly asymmetrical so that the positive half cycle and negative half cycle of three-phase voltages are also asymmetrical after islanding occurs. Calculating the time difference Δt between two half cycles, islanding can be identified more effectively during one and one third of one cycle.

原稿種別: 日本語

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