Documents disponibles écrits par cet auteur

Double-stator switched reluctance machines (DSSRM) / Abbasian, M. in IEEE transactions on energy conversion, Vol. 25, N° 3 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 589 - 597 Titre : Double-stator switched reluctance machines (DSSRM) : fundamentals and magnetic force analysis Type de document : texte imprimé Auteurs : Abbasian, M., Auteur ; M. Moallem, Auteur ; Fahimi, B., Auteur Année de publication : 2011 Article en page(s) : pp. 589 - 597 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : finite  element  analysis;  inductance;  reluctance  machines;  stators Résumé : In this paper, a new switched reluctance machine with a double-stator configuration (DSSRM) is introduced. The proposed design is based on optimization of the motional forces, which leads to a high-grade electromechanical energy conversion process. A local examination of the force densities within and throughout a conventional switched reluctance machine (SRM) shows that the majority of the force produced is in the radial direction and does not contribute to motion. If the normal forces happen to be in the direction of motion, a larger motional force profile for SRM is yield. Based on these guidelines, a new SRM (DSSRM) is proposed. To compare energy conversion efficiency of DSSRM with that of the conventional SRM, a finite element model is constructed. An experimental prototype of the proposed machine is developed, and the phase inductance is measured. The results of our investigations indicate that the proposed geometry offers superior performance in terms of higher power density and higher percentage of the motional forces. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5546930&sortType%3Das [...] [article] Double-stator switched reluctance machines (DSSRM) : fundamentals and magnetic force analysis [texte imprimé] / Abbasian, M., Auteur ; M. Moallem, Auteur ; Fahimi, B., Auteur . - 2011 . - pp. 589 - 597. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 589 - 597 Mots-clés : finite  element  analysis;  inductance;  reluctance  machines;  stators Résumé : In this paper, a new switched reluctance machine with a double-stator configuration (DSSRM) is introduced. The proposed design is based on optimization of the motional forces, which leads to a high-grade electromechanical energy conversion process. A local examination of the force densities within and throughout a conventional switched reluctance machine (SRM) shows that the majority of the force produced is in the radial direction and does not contribute to motion. If the normal forces happen to be in the direction of motion, a larger motional force profile for SRM is yield. Based on these guidelines, a new SRM (DSSRM) is proposed. To compare energy conversion efficiency of DSSRM with that of the conventional SRM, a finite element model is constructed. An experimental prototype of the proposed machine is developed, and the phase inductance is measured. The results of our investigations indicate that the proposed geometry offers superior performance in terms of higher power density and higher percentage of the motional forces. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5546930&sortType%3Das [...]

A field reconstruction technique for efficient modeling of the fields and forces within induction machines / Dezheng, Wu in IEEE transactions on energy conversion, Vol. 24 N° 2 (Juin 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 2 (Juin 2009) . - pp. 366 - 374 Titre : A field reconstruction technique for efficient modeling of the fields and forces within induction machines Type de document : texte imprimé Auteurs : Dezheng, Wu, Auteur ; Pekarek, S.D., Auteur ; Fahimi, B., Auteur Année de publication : 2009 Article en page(s) : pp. 366 - 374 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Asynchronous  machines;  computational  complexity;  finite  element  analysis Résumé : Traditional analysis and design of induction machines have been largely based upon lumped-parameter models. An alternative tool used for field-based evaluations of an induction machine is the finite-element method. Although useful, its computational complexity limits its use as a design tool. In this paper, a field reconstruction (FR) method for induction machine simulation is introduced. The FR method utilizes a small number of finite-element evaluations to establish basis functions of normal and tangential flux densities. The basis functions are then used to estimate the magnetic field under arbitrary stator excitation. Using such a tool, evaluation of fields and forces produced by a machine under alternative excitation strategies can be explored efficiently. Moreover, alternative field-based derivation of stator/rotor excitation control can be explored. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4957569&sortType%3Das [...] [article] A field reconstruction technique for efficient modeling of the fields and forces within induction machines [texte imprimé] / Dezheng, Wu, Auteur ; Pekarek, S.D., Auteur ; Fahimi, B., Auteur . - 2009 . - pp. 366 - 374. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 2 (Juin 2009) . - pp. 366 - 374 Mots-clés : Asynchronous  machines;  computational  complexity;  finite  element  analysis Résumé : Traditional analysis and design of induction machines have been largely based upon lumped-parameter models. An alternative tool used for field-based evaluations of an induction machine is the finite-element method. Although useful, its computational complexity limits its use as a design tool. In this paper, a field reconstruction (FR) method for induction machine simulation is introduced. The FR method utilizes a small number of finite-element evaluations to establish basis functions of normal and tangential flux densities. The basis functions are then used to estimate the magnetic field under arbitrary stator excitation. Using such a tool, evaluation of fields and forces produced by a machine under alternative excitation strategies can be explored efficiently. Moreover, alternative field-based derivation of stator/rotor excitation control can be explored. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4957569&sortType%3Das [...]