仮想同期発電機を用いた家庭用分散形電源の商用系統連系・解列の無瞬断切り替え制御

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  • 龍 建儒
    Division of Electrical, Electronic and Information Eng., Graduate School of Eng., Osaka University
  • 新帯 俊信
    Division of Electrical, Electronic and Information Eng., Graduate School of Eng., Osaka University
  • 柿ヶ野 浩明
    Division of Electrical, Electronic and Information Eng., Graduate School of Eng., Osaka University
  • 三浦 友史
    Division of Electrical, Electronic and Information Eng., Graduate School of Eng., Osaka University
  • 伊瀬 敏史
    Division of Electrical, Electronic and Information Eng., Graduate School of Eng., Osaka University

書誌事項

タイトル別名
  • Control Scheme of Uninterrupted Switching using a Virtual Synchronous Generator between Stand-Alone and Grid-Connected Operation of a Distributed Generation System for Houses
  • カソウ ドウキ ハツデンキ オ モチイタ カテイヨウ ブンサンケイ デンゲン ノ ショウヨウ ケイトウレンケイ ・ カイレツ ノ ムシュンダンキリカエ セイギョ

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The home applications of distributed generations such as photovoltaic and gas engine cogeneration system are growing and many of distributed generations are connected to a grid by a DC/AC inverter. The DC/AC inverter is controlled by a PLL (Phase Locked Loop) in order to be synchronized with power system frequency. However, the control scheme of stand-alone operation uses the voltage control, and the PLL is unnecessary. Therefore, it is hard to realize uninterrupted change between stand-alone and grid-connected operation. In this paper, we propose VSG (Virtual Synchronous Generator) control scheme in order to use the same control scheme in the stand-alone and grid-connected operation. We carried out some experiments to demonstrate the control characteristics.

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