Design and Implementation of SPWM Inverter

Abstract

This paper represents the fabrication and implementation of 50Hz SPWM inverter to convert the direct current to alternating current. Such as what can be continuous from a standard wall outlet. There are generally three types of the inverter in general purpose: modified sine wave, pure sine wave, and square wave. Considering the power output capability, efficiency and harmonics pure sine wave inverter is the best quality among these three types of the inverter. The main goal of this paper is generating a pure sine wave. DC to AC inverter can be utilized for low voltage DC sources such as solar panels or fuel cells. Batteries should be converted so that device can run off AC power. In our paper, the inverter converts the low voltage DC power to DC source of high voltage. Afterwards, it converts high DC source into AC waveform identical to sine wave using PWM. This inverter circuit provides a pure sine wave of all the frequency with low harmonic distortion. The simulation is done by Porteous software in the beginning step. Finally, it’s implemented and tested in real time basis.