DocumentCode
930146
Title
A new multilevel PWM method: a theoretical analysis
Author
Carrara, Giuseppe ; Gardella, Simone ; Marchesoni, Mario ; Salutari, Raffaele ; Sciutto, Giuseppe
Author_Institution
Dept. of Electr. Syst. & Autom., Pisa Univ., Italy
Volume
7
Issue
3
fYear
1992
fDate
7/1/1992 12:00:00 AM
Firstpage
497
Lastpage
505
Abstract
Generalization of the pulsewidth modulation (PWM) subharmonic method to control single-phase or three-phase multilevel voltage source inverters (VSI) is considered. An analytical expression of the spectral components of the output waveforms covering all the operating conditions is derived. The analysis is based on an extension of Bennet´s method. The improvements in harmonic spectrum are pointed out, and several examples are presented, which prove the validity of the multilevel modulation
Keywords
invertors; pulse width modulation; 3-phase multilevel voltage source invertors; Bennet´s method; harmonic spectrum; invertor control; multilevel PWM method; single-phase invertors; Electric variables control; Frequency; Interference; Magnetic losses; Power semiconductor switches; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Shape control; Voltage control;
fLanguage
English
Journal_Title
Power Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0885-8993
Type
jour
DOI
10.1109/63.145137
Filename
145137
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