Performance investigation of Unified Power Quality Conditioner for Power Quality improvement in distribution system

Abstract

Due to rapidly increasing use of power electronic devices in distribution system, there are many complex problems are evolved in power distribution system categorized in current harmonics and voltage harmonics. Both Series and Shunt converters are necessary, for voltage and current quality control which is known as Unified Power Quality Conditioner (UPQC). This paper presents the Unified Power Quality Conditioner using hysteresis control Band with PI controller for Harmonic elimination as well as compensation of current and voltage, which improves the power quality, offered to the other sensitive loads which is connected to the distribution system.