A new pulse width modulation technique with hybrid carrier arrangement for multilevel inverter topology

Abstract

This article introduces a new reduced switch multilevel inverter topology that operates in asymmetric state. The advantage of proposed multilevel inverter is utilizing the lower device count when compared to traditional configuration. This paper depicts a hybrid pulse width modulation which includes three different carriers and unipolar references. The three different carriers are saw-tooth, triangular, inverted unipolar sine which is arranged in phase disposition technique. The effectiveness of proposed hybrid pulse width modulation (HPWM) technique is tested with a new reduced switch topology using MATLAB/Simulink. The different parameters are calculated with various modulation indices.