Digitally-implemented naturally sampled PWM suitable for multilevel converter control


Autoria(s): Walker, Geoffrey R.
Data(s)

2003

Resumo

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.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/62440/

Publicador

IEEE (Institute of Electrical and Electronics Engineers, Inc.)

Relação

http://eprints.qut.edu.au/62440/1/dignatd-t.pdf

DOI:10.1109/TPEL.2003.818831

Walker, Geoffrey R. (2003) Digitally-implemented naturally sampled PWM suitable for multilevel converter control. IEEE Transactions on Power Electronics, 18(6), pp. 1322-1329.

Direitos

Copyright 2003 IEEE

Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

Fonte

School of Electrical Engineering & Computer Science; Science & Engineering Faculty

Palavras-Chave #090600 ELECTRICAL AND ELECTRONIC ENGINEERING #090603 Industrial Electronics #090607 Power and Energy Systems Engineering (excl. Renewable Power) #090608 Renewable Power and Energy Systems Engineering (excl. Solar Cells) #Engineering, Electrical & Electronic #Modulation #Modulator Bandwidth #Multilevel Converter #Natural Pwm #Re-sampled Uniform #Uniform Pwm #Drives #closed loop systems #PWM power convertors #switching convertors
Tipo

Journal Article