Multilevel Inverter With Variable Amplitude Multicarrier PWM Techniques

Vol. 2  Issue 3
Year: 2014
Issue:Aug-Oct
Title:Multilevel Inverter With Variable Amplitude Multicarrier PWM Techniques
Author Name:P. Suresh Pandiarajan, S.P. Natarajan and C.R. Balamurugan
Synopsis:

This paper deals with Single Phase Five level Inverter using Multi Carrier Based Pulse Width Modulation Technique. The voltage quality of conventional two level inverter is poor due to the presence of harmonics and hence produces power loss which reduces the efficiency of the system. The multilevel inverter is used to improve the voltage quality by reducing the harmonics. As the number of voltage levels of multilevel inverter is increased, the harmonics are reduced and hence losses are minimized significantly. The simulation of single phase cascaded five level multilevel is done using Multicarrier PWM technique and compared with sine wave. Here the authors compared conventional PD and variable PD and simulated outputs were given.