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Development and validation of a thermal model for electric induction motors / Jankowski, Todd A. in IEEE transactions on industrial electronics, Vol. 57 N° 12 (Décembre 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 12 (Décembre 2010) . - pp. 4043 - 4054 Titre : Development and validation of a thermal model for electric induction motors Type de document : texte imprimé Auteurs : Jankowski, Todd A., Auteur ; Prenger, F. Coyne, Auteur ; Hill, Dallas D., Auteur Année de publication : 2011 Article en page(s) : pp. 4043 - 4054 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Electric  machines  Electric  submersible  pump  (ESP)  Second  law  analysis  Thermal  model Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A transient lumped-parameter thermal model of an induction motor is developed. The energy balances and the expressions for the appropriate node couplings representing conduction and convection heat transfer between nodes, as well as the expressions for the heat capacity of each node, are presented. We also present expressions used in a Second Law analysis to calculate the entropy generation and exergy destruction rates at each node. An overall Second Law efficiency for heat transfer through the motor is then defined. The model is validated by comparing calculated temperatures with experimental data for a motor driving an electric submersible pump, showing that the lumped-parameter approximation is sufficient to accurately calculate temperature distributions in the motor and to capture temperature changes during warm-up and cooldown. Finally, the Second Law analysis is used to determine which components in the motor are contributing most to the inefficiency of the heat transfer process, providing a diagnostic tool for identification of areas in the motor where potential heat transfer enhancements would be most beneficial. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5443461 [article] Development and validation of a thermal model for electric induction motors [texte imprimé] / Jankowski, Todd A., Auteur ; Prenger, F. Coyne, Auteur ; Hill, Dallas D., Auteur . - 2011 . - pp. 4043 - 4054. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 12 (Décembre 2010) . - pp. 4043 - 4054 Mots-clés : Electric  machines  Electric  submersible  pump  (ESP)  Second  law  analysis  Thermal  model Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A transient lumped-parameter thermal model of an induction motor is developed. The energy balances and the expressions for the appropriate node couplings representing conduction and convection heat transfer between nodes, as well as the expressions for the heat capacity of each node, are presented. We also present expressions used in a Second Law analysis to calculate the entropy generation and exergy destruction rates at each node. An overall Second Law efficiency for heat transfer through the motor is then defined. The model is validated by comparing calculated temperatures with experimental data for a motor driving an electric submersible pump, showing that the lumped-parameter approximation is sufficient to accurately calculate temperature distributions in the motor and to capture temperature changes during warm-up and cooldown. Finally, the Second Law analysis is used to determine which components in the motor are contributing most to the inefficiency of the heat transfer process, providing a diagnostic tool for identification of areas in the motor where potential heat transfer enhancements would be most beneficial. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5443461