Digitally-implemented naturally sampled PWM suitable for multilevel converter control

Walker, Geoffrey R. (2003) Digitally-implemented naturally sampled PWM suitable for multilevel converter control. Ieee Transactions On Power Electronics, 18 6: 1322-1329. doi:10.1109/TPEL.2003.818831


Author Walker, Geoffrey R.
Title Digitally-implemented naturally sampled PWM suitable for multilevel converter control
Journal name Ieee Transactions On Power Electronics   Check publisher's open access policy
ISSN 0885-8993
Publication date 2003-11-01
Sub-type Article (original research)
DOI 10.1109/TPEL.2003.818831
Open Access Status Not Open Access
Volume 18
Issue 6
Start page 1322
End page 1329
Total pages 8
Editor J. Van Wyk
Place of publication Piscataway, NJ
Publisher The Institute of Electrical and Electronics Engineers
Language eng
Subject C1
290901 Electrical Engineering
660400 Conservation and Efficiency
Abstract For dynamic closed loop control of a multilevel converter with a low pulse number (ratio of switching frequency to synthesized fundamental), natural sampled pulse-width modulation (PWM) is the best form of modulation. Natural sampling does not introduce distortion or a delayed response to the modulating signal. However previous natural sampled PWM implementations have generally been analog. For a modular multilevel converter, a digital implementation has advantages of accuracy and flexibility. Re-sampled uniform PWM is a novel digital modulation technique which approaches the performance of natural PWM. Both hardware and software implementations for a five level multilevel converter phase are presented, demonstrating the improvement over uniform PWM.
Keyword Engineering, Electrical & Electronic
Modulation
Modulator Bandwidth
Multilevel Converter
Natural Pwm
Re-sampled Uniform
Re-sampling
Uniform Pwm
Drives
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2004 Higher Education Research Data Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Wed, 15 Aug 2007, 11:50:02 EST