Universiti Teknologi Malaysia Institutional Repository

Optimal pulsewidth modulation (PWM) online control of a modular structured multilevel inverter (MSMI)

Ahmad Azli, N. and Mohd, Yatim, A. H. (2001) Optimal pulsewidth modulation (PWM) online control of a modular structured multilevel inverter (MSMI). Proceedings., 2001 4th IEEE International Conference on : Power Electronics and Drive Systems, 2001. . ISSN 7327377

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Abstract

An inverter topology for high power applications that seems to be gaining interest lately is the modular structured multilevel inverter. (MSMI). The switching frequency constraint in a MSMI with high isolated DC voltages calls for a low switching frequency modulator such as the optimal PWM switching strategies. This paper presents a different approach in controlling a MSMI output voltage based on the optimal PWM switching strategies. For better output voltage magnitude control resolution, a curve fitting technique (CFT) for online computation of the optimal PWM switching angles is proposed. Focus is given on the CFT and the multilevel design aspect of the proposed control strategy for the MSMI. Simulation and experimental results of the MSMI operation are given to verify its performance.

Item Type:Article
Uncontrolled Keywords:Inverter, multilevel control, optimal PWM
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:1987
Deposited By: Dr Zaharuddin Mohamed
Deposited On:20 Mar 2007 04:03
Last Modified:01 Jun 2010 03:00

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