Comparative analysis of Conventional Converter and SVPWM based Matrix Converter

Abstract

In recent years, matrix converters have become increasingly attractive for these applications because they fulfill all the requirements, having the potential to replace the conventionally used rectifier_dc link_inverter structures. The matrix converter is an array of controlled semiconductor switches that connects directly the three-phase source to the three-phase load. It utilizes bidirectional controlled switch to achieve automatic conversion of power from AC to AC. In the last few years, an increase in research work has been observed, bringing this topology closer to the industrial application.There are several modulation techniques for matrix converter out of each Space Vector Pulse Width Modulation(SVPWM) is considered. It is an algorithm for the control of pulse width modulation width modulation (PWM). Indirect matrix converter is implemented because of its simplicity in switching scheme and advantages over Direct matrix converter. Three phase matrix converter is studied and implemented using MATLAB/SIMULINK. Finally the results are compared with conventional dc-link back to back converter. From the results, it can be concluded that THD level of line voltages, phase voltages is reduced in case of Indirect matrix converter when compared to conventional dc-link back to back converter.