Minshull, S. and Bingham, Chris and Stone, D. A. and Foster, M. P. (2010) Compensation of non-linearities in diode-clamped multilevel converters. Industrial Electronics, IEEE Transactions on , 57 (8). pp. 2651-2658. ISSN 0278-0046

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Abstract

The application of multilevel converters for exciting permanent magnet machines with low-phase inductance to DC-link voltage ratios facilitates a reduction in high frequency switching harmonics. However, converter non-linearities and, in-particular, on-state device voltage drops, create additional low-frequency harmonics. This paper therefore proposes a generic compensation scheme to accommodate the effects of such converter non-linearities and, in so doing, improve the harmonic quality of the machine phase currents. Experimental results gathered from a prototype 5-level diode clamped converter validate the benefits of the proposed scheme by showing quantitative reductions in low frequency harmonics.

Item Type:	Article
Additional Information:	The application of multilevel converters for exciting permanent magnet machines with low-phase inductance to DC-link voltage ratios facilitates a reduction in high frequency switching harmonics. However, converter non-linearities and, in-particular, on-state device voltage drops, create additional low-frequency harmonics. This paper therefore proposes a generic compensation scheme to accommodate the effects of such converter non-linearities and, in so doing, improve the harmonic quality of the machine phase currents. Experimental results gathered from a prototype 5-level diode clamped converter validate the benefits of the proposed scheme by showing quantitative reductions in low frequency harmonics.
Keywords:	multilevel energy converters, Dead-time compensation, Permanent magnet synchronous motor, Space vector modulation, ref15, refdoi
Subjects:	H Engineering > H600 Electronic and Electrical Engineering
Divisions:	College of Sciences > Faculty of Science > Lincoln School of Engineering
Depositing User:	Paul Stewart
Date Deposited:	13 Jul 2010 15:11
Last Modified:	12 Apr 2013 08:31
URI:	http://eprints.lincoln.ac.uk/id/eprint/2868

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