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Analysis of critical-speed increase of induction machines via winding reconfiguration with solid-state switches / Fuchs, E. F. in IEEE transactions on energy conversion, Vol. 23 n°3 (Septembre 2008) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 23 n°3 (Septembre 2008) . - pp. 774 - 780 Titre : Analysis of critical-speed increase of induction machines via winding reconfiguration with solid-state switches Type de document : texte imprimé Auteurs : Fuchs, E. F., Auteur ; Schraud, J., Auteur ; Fuchs, F. S., Auteur Année de publication : 2008 Article en page(s) : pp. 774 - 780 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : Angular  velocity  control;  asynchronous  machines;  machine  windings;  switches Résumé : Commonly used speed-control concepts permit speed ranges up to two-three times the base speed via voltage to frequency (V/f), that is, field-weakening control. This paper teaches the extension of the speed-control range up to nine times the base speed through online reconfiguration of the motor windings via electronic switches. The switchover of the windings, either from a winding with p1 poles to p2 poles, or from series to parallel connection of the number of turns per phase-so-called (V/Nldrf) control-lasts less than a 60-Hz cycle. Such fast switchover causes small transients only, and therefore, this concept is applicable to most variable-speed drives. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4544495&sortType%3Das [...] [article] Analysis of critical-speed increase of induction machines via winding reconfiguration with solid-state switches [texte imprimé] / Fuchs, E. F., Auteur ; Schraud, J., Auteur ; Fuchs, F. S., Auteur . - 2008 . - pp. 774 - 780. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 n°3 (Septembre 2008) . - pp. 774 - 780 Mots-clés : Angular  velocity  control;  asynchronous  machines;  machine  windings;  switches Résumé : Commonly used speed-control concepts permit speed ranges up to two-three times the base speed via voltage to frequency (V/f), that is, field-weakening control. This paper teaches the extension of the speed-control range up to nine times the base speed through online reconfiguration of the motor windings via electronic switches. The switchover of the windings, either from a winding with p1 poles to p2 poles, or from series to parallel connection of the number of turns per phase-so-called (V/Nldrf) control-lasts less than a 60-Hz cycle. Such fast switchover causes small transients only, and therefore, this concept is applicable to most variable-speed drives. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4544495&sortType%3Das [...]