Abstract

Wind farms equipped with squirrel cage induction generator can be improved with the help of Flexible Alternate Current Transmission System device. Power quality problems will arise with increasing wind power penetration in power system. Voltage sag is an important power quality issue is reduction of RMS voltage lasting for very short duration which may cause serious problems to the system. These voltage fluctuations can be eliminated using advanced reactive power compensator devices. In this work one such Static Compensator (STATCOM) device is analyzed for wind farms using Synchronous Reference Frame theory. The performance of the wind farm system is verified using PI controller and Fuzzy logic controller. The proposed system is analyzed using MATLAB and simulation studies show the effective influences of the STATCOM on the improvement of voltage profile and make the wind farm system to be in service even under fault conditions. It also shows that fuzzy logic controller gives better result when compared to PI controller.

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