Open AccessTHD Analysis of a Seven, Nine, and Eleven Level Cascaded H-Bridge Multilevel Inverter for Different Loads
Author(s) -
Manoj Kumar Sahu,
Madhusmita Biswal,
Jagan Mohana Rao Malla
Publication year - 2020
Publication title -
tehnički glasnik
Language(s) - English
Resource type - Journals
eISSN - 1848-5588
pISSN - 1846-6168
DOI - 10.31803/tg-20180206150332
Subject(s) - total harmonic distortion , h bridge , pulse width modulation , matlab , inverter , voltage , harmonic , topology (electrical circuits) , computer science , control theory (sociology) , electronic engineering , engineering , electrical engineering , physics , acoustics , control (management) , artificial intelligence , operating system
A multilevel inverter is implemented for generating the required staircase AC voltage of output from various steps of voltages of DC sources. The multilevel inverter gives a better harmonic spectrum and a compatible quality of output. This article delves into an analytical analysis of the total harmonic distortion (THD) of different multilevel inverters which employ a multicarrier PWM technique. This technique is implemented for operating the switches at their respective angle of conduction. This paper deals with various cascaded H-Bridge multilevel inverters (CMI) with various loads that are modelled by implementing the MATLAB/Simulink platform. The output gives a better result of the proposed model in terms that it is helpful towards reducing the THD and the losses of switching.