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Slotless PM brushless motor with helical edge-wound laminations / Sharkh S.M. in IEEE transactions on energy conversion, Vol. 24 N° 3 (Septembre 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 594 - 598 Titre : Slotless PM brushless motor with helical edge-wound laminations Type de document : texte imprimé Auteurs : Sharkh S.M., Auteur ; Lai S.H., Auteur Année de publication : 2010 Article en page(s) : pp. 594 - 598 Note générale : Energy Conversion Langues : Anglais (eng) Mots-clés : Brushless  machines--Finite  element  analysis--Sermanent  magnet  motorsStators Résumé : This paper discusses the analysis and design of a very thin slotless permanent-magnet (PM) brushless motor whose stator laminations are manufactured from a single strip of steel that is edge wound into a spiral (like a ldquoslinkyrdquo) and then fitted over the windings that are preformed on the outside surface of a nonconducting former. Analytical and finite-element analysis (FEA) were used to determine the constrained optimum dimensions of a motor used to drive a rim-driven thruster in which the motor rotor is fitted onto the rim of the propeller and the stator is encapsulated in the thin Kort nozzle of the thruster. This paper describes the fabrication of a demonstrator motor and presents experimental results to validate the theoretical calculations. Experimental motor performance results are also reported and compared with those of a slotted motor that fits within the same active radial dimensions as the slotless motor. The slotless motor, which has longer active length and endwindings, and thicker magnets than the slotted motor, was found to be less efficient and more expensive (prototype cost) than the slotted machine. Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5224012&sortType%3Das [...] [article] Slotless PM brushless motor with helical edge-wound laminations [texte imprimé] / Sharkh S.M., Auteur ; Lai S.H., Auteur . - 2010 . - pp. 594 - 598. Energy Conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 594 - 598 Mots-clés : Brushless  machines--Finite  element  analysis--Sermanent  magnet  motorsStators Résumé : This paper discusses the analysis and design of a very thin slotless permanent-magnet (PM) brushless motor whose stator laminations are manufactured from a single strip of steel that is edge wound into a spiral (like a ldquoslinkyrdquo) and then fitted over the windings that are preformed on the outside surface of a nonconducting former. Analytical and finite-element analysis (FEA) were used to determine the constrained optimum dimensions of a motor used to drive a rim-driven thruster in which the motor rotor is fitted onto the rim of the propeller and the stator is encapsulated in the thin Kort nozzle of the thruster. This paper describes the fabrication of a demonstrator motor and presents experimental results to validate the theoretical calculations. Experimental motor performance results are also reported and compared with those of a slotted motor that fits within the same active radial dimensions as the slotless motor. The slotless motor, which has longer active length and endwindings, and thicker magnets than the slotted motor, was found to be less efficient and more expensive (prototype cost) than the slotted machine. Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5224012&sortType%3Das [...]