風力用巻線形誘導発電システムのLVRT性能の検討

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  • 平綿 諒也
    小山工業高等専門学校 専攻科 電子システム工学専攻
  • 甲斐 隆章
    小山工業高等専門学校 専攻科 電子システム工学専攻

書誌事項

タイトル別名
  • Study of Low Voltage Ride Through Performance for Wind Power Generation with Doubly Fed Induction Generator
  • フウリョクヨウ マキセンケイ ユウドウ ハツデン システム ノ LVRT セイノウ ノ ケントウ

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Recently, the introduction of wind power generation is increasing rapidly. The ratio of wind power generation to the capacity of a total generation is getting higher and higher. When the phase-to-phase fault occurs in the power system, the frequency of power system is lower due to disconnecting of the wind power generation with doubly fed induction generator (DFIG). Therefore, the power system might become unstable.<br>This paper describes the LVRT (low voltage ride through) performance improvement scheme of the wind power generation with DFIG. The wind power generation is disconnected from the grid in case of the power system fault. It is independently in operation from the grid by controlling of the inverter equipped in the generation. After clearance of the power system fault, the wind power generation is immediately re-connected to the grid. As a result, instability in the power system disappears. The performance of LVRT is confirmed by using simulation software PSCAD/EMTDC. The simulation result shows an excellent result to the three-phase short-circuit fault of the voltage dip 100%.

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