Analysis of DFIG Based Wind Turbine System During Different Types of Grid Fault
Kiran Singh1, Chandasree Das2

1Mtech Student. Kiran Singh, Department of Power Electronics, VTU BMSCE Bangalore (Karnataka), India.
2Dr. Chandasree Das, Department of EEE, VTU BMSCE, Bangalore (Karnataka), India.
Manuscript received on 14 August 2014 | Revised Manuscript received on 22 August 2014 | Manuscript Published on 30 August 2014 | PP: 13-17 | Volume-4 Issue-3, August 2014 | Retrieval Number: C1761084314/14©BEIESP
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Abstract: The doubly fed induction generator (DFIG) based wind turbine(WT) system provides better power delivery towards the demand .This paper presents the performance of DFIG based wind turbine system during voltage dip caused due to different types of grid fault. Low-voltage ride-through (LVRT) capability of the system according to the grid connection requirement during these faults is studied and discussed in the paper. Further, power flow through the grid with different load conditions is compared and LVRT capability of the system is studied for each load condition. In addition to this, a 16 bus distribution system is connected to two generators and one DFIG based wind turbine system and the reactive power compensation is provided at two buses by using capacitors. The results obtained prove that due to the compensation provided the reactive power flow through those buses is reduced to a great extent and thereby improving systems stability and reliability. The design and response of the DFIG based wind turbine system during different fault conditions, various load conditions and integrated system consisting of DFIG based WT system and 16 bus distribution systems have been verified using MATLAB/ Simulink.
Keywords: DFIG, Distrbution System, LVRT, Wind Turbine .

Scope of the Article: Grid Networking/ Computing