Improvement of power quality for microgrid using fuzzy based UPQC controller

Abstract

The main aim of this paper is to enhance the power quality problems in a micro grid system. A flexible ac distribution system is presented in this paper for improving the reliability and power quality of the distributed system to which the microgrid is connected. In order to improve the system computational time and response a new control algorithm is designed for controlling the Facts devices. The Fuzzy Controller is also employed in this paper for frequency tracking and for extracting the harmonic spectra of the grid voltages and load currents in a micro grid. The design concept is tested in different cases using MATLAB/SIMULINK.