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Design and evaluation of a 42-V automotive alternator with integrated switched-mode rectifier / Tang, S. C. in IEEE transactions on energy conversion, Vol. 25, N° 4 (Décembre 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25, N° 4 (Décembre 2010) . - pp. 983 - 992 Titre : Design and evaluation of a 42-V automotive alternator with integrated switched-mode rectifier Type de document : texte imprimé Auteurs : Tang, S. C., Auteur ; Otten, D. M., Auteur ; Keim, T. A., Auteur Année de publication : 2011 Article en page(s) : pp. 983 - 992 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Alternators;  automotive  electronics;  machine  windings;  power  electronics;  rectifiers;  stators Résumé : This paper presents techniques for the design of high-power Lundell alternators with integrated switched-mode rectifiers. A multisection stator winding and interleaved rectifier arrangement is introduced that enables high power levels to be achieved using small semiconductor devices, and which greatly reduces the output filter capacitor requirements. We also demonstrate control methods suited for this interleaved system. In addition to accurate closed-loop output voltage control, we introduce methods to provide (partial) synchronous rectification for reduced loss, and to provide tight load-dump transient control. The proposed technology is validated in the design and experimental evaluation of a 42-V, 3.4-kW alternator with fully integrated power electronics and controls. The prototype alternator achieves approximately a factor of 2.1 increase in power and 1.6 increase in power density as compared to a conventional diode-rectified alternator. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5559389&sortType%3Das [...] [article] Design and evaluation of a 42-V automotive alternator with integrated switched-mode rectifier [texte imprimé] / Tang, S. C., Auteur ; Otten, D. M., Auteur ; Keim, T. A., Auteur . - 2011 . - pp. 983 - 992. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 4 (Décembre 2010) . - pp. 983 - 992 Mots-clés : Alternators;  automotive  electronics;  machine  windings;  power  electronics;  rectifiers;  stators Résumé : This paper presents techniques for the design of high-power Lundell alternators with integrated switched-mode rectifiers. A multisection stator winding and interleaved rectifier arrangement is introduced that enables high power levels to be achieved using small semiconductor devices, and which greatly reduces the output filter capacitor requirements. We also demonstrate control methods suited for this interleaved system. In addition to accurate closed-loop output voltage control, we introduce methods to provide (partial) synchronous rectification for reduced loss, and to provide tight load-dump transient control. The proposed technology is validated in the design and experimental evaluation of a 42-V, 3.4-kW alternator with fully integrated power electronics and controls. The prototype alternator achieves approximately a factor of 2.1 increase in power and 1.6 increase in power density as compared to a conventional diode-rectified alternator. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5559389&sortType%3Das [...]