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This paper investigates about the reactive power compensation in microgrids. The device considered in this paper is Unified Power Quality Conditioner (UPQC). Initially UPQC is to be modeled, simulated and tested in conventional distribution power system. Later the same will be incorporated into the microgrid. The microgrid is developed with two DG units, a PV generator and a wind generator to give an output voltage equal to the conventional 3 phase 4 wire distribution system. The performance of the UPQC with its control technique using fuzzy based controllers in providing the reactive power compensation to resolve the power quality issues in microgrid with dynamically varying load will be examined and verified with the help of simulation results. The simulation work will be carried out using MATLAB/Simulink software.

MITIGATION OF SAG, SWELL AND REDUCTION OF THD IN AN AC MICROGRID USING FUZZY BASED UPQC