Research On Characteristics Of Equivalent Sequence Impedance Of Doubly Fed Induction Generator Wind Turbine

Xiang Li,Yongning Chi,Haiyan Tang,Xinshou Tian

PROCEEDINGS OF THE 2016 INTERNATIONAL CONFERENCE ON MECHATRONICS ENGINEERING AND INFORMATION TECHNOLOGY (ICMEIT)（2016）

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Abstract

Wind generation is widely utilized today as a promising form. As the major type of wind turbines, doubly fed induction generator (DFIG) wind turbines have been widely used. Now great attention is paid to the relay protection of power systems integrated with wind power of large capacity. Based on fault analysis, the equivalent sequence impedance is a key factor of protection strategy. In this paper, the model of DFIG wind turbines is built in PSCAD/EMTDC software. Then the characteristics of sequence impedance are calculated and analyzed at length. And the relay protection method is discussed as the conclusion.

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Key words

wind energy, equivalent sequence impedance, relay protection, PSCAD simulation

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