A New Symmetrical Multilevel Inverter with Reduced Components Using Carrier Based PWM Technique

Abstract

A wide attention from academia and industry have been received for Multilevel Inverters (MLIs) as they offer high power capacity with lower harmonics and less switching losses. Usage of large number of switches in the conventional configuration causes a limitation which leads to the development of new topology with less switch count. This paper presents a development of Reduced Switch Single Source (RSSS) MLI which is capable of producing all voltage levels. The analysis of RSSS MLI is done using 15- level MLI which consists of very less number of components as compared with conventional topologies, thereby ensuring the reducing size, minimum switching loss and installation cost. The harmonic contents of output voltage is obtained and compared using carrier-based PWM technique. MATLAB/Simulink environment is used to validate the results.