Simulation and Hardware Analysis of Three Phase PWM Rectifier for Power Factor Correction

Abstract

Three-phase controlled rectifiers have a wide range of applications such as motor control in industries, dc drives, cycloconverters etc. They are used for electro-chemical process, many kinds of motor drives, traction equipment, controlled power supplies, and many other applications. The main aim of this paper is to design the three phase PWM rectifier and analyze its performance. The rectifier is designed to convert input ac power into intermediate dc power. This power conversion is done at unity power factor viewed from the supply mains. The advantage of this system is it also improves the power quality. This improved power factor improves/modifies the wave shape of line current close to sinusoidal and reduces the line amplitude of line current to reduces the line loss and hence to improve the power quality.