Open AccessSinusoidal inverter using pulse width amplitude modulation
Author(s) -
Mustafa Hadi Mohsin,
Nabil Kadhim Al-Shamaa,
Dalal Abdulmohsin Hammood,
Sabah Ahmed Hussein
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/745/1/012022
Subject(s) - inverter , transformer , pulse width modulation , tap changer , total harmonic distortion , microcontroller , voltage , electronic engineering , electrical engineering , computer science , engineering
In this paper, a technique of single-phase inverter pulse width-amplitude modulation is introduced. This technique is based on tap changer transformer that controls the amplitude of the output voltage. The DC voltage is applied on the primary side of the tap changer transformer with the help of a microcontroller through several semiconductor switches in sequential modality. The tap changer inverter has been analyzed, designed and simulated for four tap inverter using Proteus software. The LCL (low pass filter) is connected on the primary side of the transformer to generate sinusoidal output voltage. In hardware a tap changer inverter has been designed and implemented for four taps inverter. The microcontroller used is minipro, which produces command signal to the switches. The introduced topology has produced large number of levels with decreased total harmonics distortion (THD) in addition to a low cost with isolated multilevel inverter.