Performance of indirect matrix converter with improved control feeding to induction motor for speed control by using PI and fuzzy controllers

摘要

This paper presents Indirect Matrix Converter(IMC) with improved control supplying power to different loads at different frequencies. An improved switching technique is used at the input stage of this proposed IMC so that a higher dc voltage is obtained compared to the IMC with conventional control. The fundamental input current is at unity power factor for all operating conditions. In this IMC, the inverter switching states are selected through its output space vectors such that the switching losses and the output distortions are minimised. The performance of proposed IMC with two separate inverters one supplying the R-L Load and other feeding an Induction motoris studied. Speed control of Induction motor using closed loop V/f control with PI controller and Fuzzy Logic controller is analysed. Performance of the IMC with improved control is analysed in Matlab/simulink software.