నైరూప్య

A Carrier based PWM Inverter for Photovoltaic Power Generation System

V.Kamaldas, R.Balamurugan

Multilevel inverter is one of the most recent and popular type of inverter founds its applications in the system based on renewable energy.This paper describes a new Single-phase seven level inverter topology for solar photovoltaic (PV) system using a carrier based PWM control scheme. This new topology has reduced number of switches for an increased number of levels when compared to conventional seven-level multilevel inverter. Here CPWM switching scheme is used to control the switches in this multilevel inverter and this inverter is fed from a solar PV. In this proposed topology, six power electronic switches are used for a seven-level inverter. By using this inverter topology, the harmonics is reduced and efficiency is enhanced significantly. Simulation work is done using the MATLAB/SIMULINK software which validates the proposed method and finally Total Harmonic Distortion is analyzed.