Performance Evaluation of Unified Power Quality Conditioner for Mitigation of Power Quality Issues using Genetic Algorithm Controller

Abstract

Research is focusing on the improving power quality in distribution system based on unified power quality conditioner device. Each converter has six switches and these switches are controlled in order to mitigate power quality issues. An eight switch UPQC topology is proposed to reduce the harmonics and some precincts such as more switching stress, high value of DC link voltage etc. The UPQC function is primarily identified by the estimation of compensation signals precisely and rapidly. The predominantly focus on improve the power quality in distribution system using flexible ac transmission system connected with grid. In order to reducing the total cost of the system, minimization of number of switches is essential. But it is a challenging task for every researcher. The topology of UPQC can be modified into eight switch topology and the results are validated for nonlinear loads, sag and swell conditions. From the results, it is concluded that genetic algorithm gives encouraging results.