A Comparative Study on Various Unipolar PWM Strategies for Single Phase Seven Switch Asymmetric 15-Level Inverter

V. Arun ； B. Shanthi ； S. P. Natarajan

《Research Journal of Applied Sciences, Engineering and Technology》 7卷10期 (2014/03) Pp. 2145-2153

並列摘要

This study presents a modified single phase cascaded 15 level inverter with reduced switch count that operates in asymmetric mode. The proposed multilevel inverter produce DC voltage levels similar to other topologies with less number of semiconductor switches. This study also presents various modulating techniques include sinusoidal pulse width modulation, advance modulating technique. i.e., Trapezoidal reference with triangular carrier waves. Different performance measures like THD, VRMS and CF have also been evaluated by simulation. The simulation of proposed circuit is carried out using MATLAB/SIMULINK and the result for the same are presented in this study.

並列關鍵字

Crest factor ； form factor ； THD ； unipolar carrier overlapping ； unipolar phase disposition