Minshull, S., Bingham, Chris, Stone, D. A. et al 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
Full content URL: http://dx.doi.org/10.1109/TIE.2009.2023631
Compensation of non-linearities in diode-clamped multilevel converters | 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. | | ![[img]](http://eprints.lincoln.ac.uk/style/images/fileicons/application_pdf.png) [Download] |
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Item Type: | Article |
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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.
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