Performance Comparison of PWM Methods for 27-Level Hybrid Multilevel Inverters

Multilevel inverters have become more popular due to reduced switching losses, low costs, low harmonic distortion and high-voltage capability when compared to traditional PWM inverters. A new family of multilevel inverters that has decreased the number of separated DC sources has emerged named as hy...

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Bibliographic Details
Published inGazi University Journal of Science Vol. 25; no. 3
Main Authors Teke,Ahmet, Sarıbulut,Lütfü, Meral,Mehmet Emin, Tümay,Mehmet
Format Journal Article
LanguageEnglish
Published Gazi Üniversitesi Yayınları 01.01.2012
Subjects
Bilim-Teknoloji
Ankara
Türkiye
Reference signal generation
Pulse width modulation (PWM
Hybrid multilevel inverters
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Summary:Multilevel inverters have become more popular due to reduced switching losses, low costs, low harmonic distortion and high-voltage capability when compared to traditional PWM inverters. A new family of multilevel inverters that has decreased the number of separated DC sources has emerged named as hybrid multilevel inverter. In this study, theories and applications of four PWM modulation methods for 27 level hybrid multilevel inverters are examined. The comparative case studies are presented to validate the examined modulation technique through harmonic spectrum analysis, output voltage magnitude, THD, WTHD and simulation using Power System Computer Aided Design Program (PSCAD).
ISSN:2147-1762