| Titre : | An investigation of the loss distribution in induction motors fed from nonsinusoidal supplies |
| Auteurs : | Nacereddine Benamrouche, Auteur ; M. McCormick, Directeur de thèse |
| Type de document : | texte imprimé |
| Editeur : | Sheffield : University of Sheffield, 1991 |
| Format : | 133 f. / ill. / 30 cm. |
| Note générale : |
thèse de Doctorat : Électrotechnique : Angleterre, University of Sheffield : 1991
Bibliogr. f. 134 - 143 . - Annexe f. 144 - 151 |
| Langues : | Anglais |
| Index. décimale : | D001391 |
| Tags : | Losses Induction motors fed Nonsinusoidal supplies Mainstream models Time-temperature technique |
| Résumé : |
Many authors have examined the calculation of losses in induction motors fed from nonsinusoidal supplies using lumped circuit models.
In published literature considerable controversy still exists as to the efficacy of a perticular model. In this thesis three mainstream models are independently examined in a systematic objective manner and their ability to predict the losses in two 4 KW, 415 V, 3 phase squirrel cage induction motors is assessed. Analysis of experimental and theoretical results confirms that the uncertainties and differences existing are due to the difficulties involved in accurately estimating the different iron loss components. A further weakness of lumped circuit methods is their inability to predict the spacial distribution of losses which is particularly important with respect to the temperature rise. To overcome this deficiency the time-temperature teccnique was examined. In order to carry out this investigation a specialised experimental rig was constructed. The experimental results are discussed and using the well known least-squares interpolation technique temperature and loss density information throughout the volume of the machine was generated. A computer program was developed which allows the information to be presented in colour coded form tomographically. To the best knowledge of the author non such information has hitherto been available. Finally, it should be noted that all aspects of the experimental and theoretical work are appropriately supported by customisied software. |
Exemplaires (1)
| Cote | Support | Localisation | Section | Disponibilité | Spécialité | Etat_Exemplaire |
|---|---|---|---|---|---|---|
| D001391 | Papier + ressource électronique | Bibliothèque Annexe | Thèse de Doctorat | Disponible | Electrotechnique | Consultation sur place/Téléchargeable |
Documents numériques (1)
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BENAMROUCHE.Nacereddine.pdf URL
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