Compensation of nonlinearities in diode-clamped multilevel converters / Minshull, Stephen R. in IEEE transactions on industrial electronics, Vol. 57 N° 8 (Août 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 8 (Août 2010) . - pp. 2651 - 2658 Titre : Compensation of nonlinearities in diode-clamped multilevel converters Type de document : texte imprimé Auteurs : Minshull, Stephen R., Auteur ; Bingham, Christopher M., Auteur ; Stone, David A., Auteur Année de publication : 2011 Article en page(s) : pp. 2651 - 2658 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Dead-time compensation Multilevel converter Permanent-magnet synchronous motor Space-vector (SV) modulation (SVM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : 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 nonlinearities 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 nonlinearities and, in doing so, improve the harmonic quality of the machine phase currents. Experimental results gathered from a prototype five-level diode-clamped converter validate the benefits of the proposed scheme by showing quantitative reductions in low-frequency harmonics. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067304 [article] Compensation of nonlinearities in diode-clamped multilevel converters [texte imprimé] / Minshull, Stephen R., Auteur ; Bingham, Christopher M., Auteur ; Stone, David A., Auteur . - 2011 . - pp. 2651 - 2658. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 8 (Août 2010) . - pp. 2651 - 2658 Mots-clés : Dead-time compensation Multilevel converter Permanent-magnet synchronous motor Space-vector (SV) modulation (SVM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : 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 nonlinearities 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 nonlinearities and, in doing so, improve the harmonic quality of the machine phase currents. Experimental results gathered from a prototype five-level diode-clamped converter validate the benefits of the proposed scheme by showing quantitative reductions in low-frequency harmonics. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067304

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