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AuthorBen-Brahim, Lazhar
AuthorTadakuma, Susumu
Available date2022-11-24T07:18:24Z
Publication Date2006-01
Publication NameIEEE Transactions on Industry Applications
Identifierhttp://dx.doi.org/10.1109/TIA.2005.861321
CitationBen-Brahim, L., & Tadakuma, S. (2006). A novel multilevel carrier-based PWM-control method for GTO inverter in low index modulation region. IEEE transactions on industry applications, 42(1), 121-127.
ISSN0093-9994
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=32144460648&origin=inward
URIhttp://hdl.handle.net/10576/36661
AbstractGate turn offs (GTOs) have an inherent minimum ON-OFF time, which is needed for their safe operation. For GTO-based three-level or neutral-point-clamped (NPC) inverters, this minimum ON-OFF pulsewidth limitation results in a distortion of the output voltage and current waveforms, especially in the low index modulation region. Some approaches have been previously proposed to compensate for the minimum ON pulse. However, these methods increase the inverter switching losses. Two new methods of pulsewidth-modulation (PWM) control based on: 1) adding a bias to the reference voltage of the inverter and 2) switching patterns are presented. The former method improves the output waveforms, but increases the switching losses; while the latter improves the output waveforms without increasing the switching losses. The fluctuations of the neutral-point voltage are also reduced using this method. The theoretical and practical aspects as well as the experimental results are presented in this paper. © 2006 IEEE.
Languageen
PublisherIEEE
SubjectGate turn off (GTO)
Low index modulation
Neutral-point-clamped (NPC) inverter
Pulsewidth modulation (PWM)
Switching pattern
TitleA novel multilevel carrier-based PWM-control method for GTO inverter in low index modulation region
TypeArticle
Pagination121-127
Issue Number1
Volume Number42
ESSN1939-9367


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