Enhancement of fault ride-through capability of grid-connected wind farm
by Kishor Vinayak Bhadane; Makarand Sudhakar Ballal; Ravindra M. Moharil; Hemant Ramesh Kulkarni; Hanuman Prasad
International Journal of Power Electronics (IJPELEC), Vol. 13, No. 3, 2021

Abstract: The distributed power generation (DPG) at low and medium voltage demands that the renewable generation system is always grid connected during fault condition to ensure the stability of wind power system. The DPG consist of wind turbines (WT) along with fixed speed induction generator (FSIG) does not provide accurate reactive power control and hence, there is need for dedicated compensation. Due to fault condition, the negative sequence component is affected and there is direct impact on DPG with reduction in life expectancy. This paper proposes the application of distributed static compensator (DSTATCOM) for fault ride through (FRT) and reactive power compensation. It has been observed that the compensation of negative sequence component improves the performance of FSIG-based WT. Also, the compensation of positive sequence component avoids the collapsing of voltage and improved the stability of WT. The simulation is done in MATLAB and various tests are considered under fault condition in which results are presented. The FRT enhancement of grid connected WT by using DSTATCOM is 30% and hence, 30% additional wind power is penetrated to the grid.

Online publication date: Fri, 23-Apr-2021

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