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Comparison between Symmetrical and Asymmetrical Single Phase Multilevel Inverter with Diode-Clamped Topology

Nami, Alireza, Zare, Firuz, Ghosh, Arindam, Ledwich, Gerard F., & Blaabjerg, Frede (2008) Comparison between Symmetrical and Asymmetrical Single Phase Multilevel Inverter with Diode-Clamped Topology. In 39th IEEE Power Electronics Specialists Conference (PESC08), 15-19 June 2008, Rhodes, Greece. (In Press)

Abstract

In this paper, a different configuration based on different DC bus voltage for a diode-clamped multilevel inverter has been presented. Two different symmetrical and asymmetrical arrangements of a four-level diode clamped inverters have been compared, in order to find an optimum arrangement with lower switching losses and optimised output voltage quality. The optimised asymmetrical arrangement has been compared with a conventional four-level inverter. The comparison results show that an asymmetrical configuration can obtain more voltage levels in output voltage with same number of component compared with the conventional four-level inverter and this will lead to the reduction of harmonic content of output voltage. A predictive current control technique has been carried out to verify the viability of new configuration. The advantages of this control method are simplicity and applicability for n-level multilevel inverters, without a significant change in the control circuit.

Impact and interest:

9 citations in Scopus
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5 citations in Web of Science®

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ID Code: 13939
Item Type: Conference Paper
Additional Information: For more information, please refer to the conference's website (see hypertext link) or contact the author.
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Keywords: Multilevel Inverter, Asymmetrical Diode, clamped
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2008 IEEE
Deposited On: 02 Jul 2008
Last Modified: 29 Feb 2012 23:48

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