Documents disponibles écrits par cet auteur

Design and control strategies of an induction-machine-based flywheel energy storage system associated to a variable-speed wind generator / Cimuca, G. in IEEE transactions on energy conversion, Vol. 25 N° 2 (Juin 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25 N° 2 (Juin 2010) . - pp. 526 - 534 Titre : Design and control strategies of an induction-machine-based flywheel energy storage system associated to a variable-speed wind generator Type de document : texte imprimé Auteurs : Cimuca, G., Auteur ; Breban, S., Auteur ; Radulescu, Mircea M., Auteur Année de publication : 2010 Article en page(s) : pp. 526 - 534 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : asynchronous  machines;  flywheels;  machine  control;  torque  control;  wind  power Résumé : Flywheel energy storage systems (FESSs) improve the quality of the electric power delivered by wind generators, and help these generators contributing to the ancillary services. Presently, FESSs containing a flux-oriented controlled induction machine (IM) are mainly considered for this kind of application. The paper proposes the direct torque control (DTC) for an IM-based FESS associated to a variable-speed wind generator, and proves through simulation and experimental results that it could be a better alternative. This DTC application entails two specific aspects: 1) the IM must operate in the flux-weakening region, and 2) it must shift quickly and repeatedly between motoring and generating operation modes. DTC improvement for increasing the FESS efficiency, when it operates at small power values, is discussed. Some aspects concerning the flywheel design and the choice of the filter used in the FESS supervisor are also addressed. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5467354&sortType%3Das [...] [article] Design and control strategies of an induction-machine-based flywheel energy storage system associated to a variable-speed wind generator [texte imprimé] / Cimuca, G., Auteur ; Breban, S., Auteur ; Radulescu, Mircea M., Auteur . - 2010 . - pp. 526 - 534. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25 N° 2 (Juin 2010) . - pp. 526 - 534 Mots-clés : asynchronous  machines;  flywheels;  machine  control;  torque  control;  wind  power Résumé : Flywheel energy storage systems (FESSs) improve the quality of the electric power delivered by wind generators, and help these generators contributing to the ancillary services. Presently, FESSs containing a flux-oriented controlled induction machine (IM) are mainly considered for this kind of application. The paper proposes the direct torque control (DTC) for an IM-based FESS associated to a variable-speed wind generator, and proves through simulation and experimental results that it could be a better alternative. This DTC application entails two specific aspects: 1) the IM must operate in the flux-weakening region, and 2) it must shift quickly and repeatedly between motoring and generating operation modes. DTC improvement for increasing the FESS efficiency, when it operates at small power values, is discussed. Some aspects concerning the flywheel design and the choice of the filter used in the FESS supervisor are also addressed. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5467354&sortType%3Das [...]