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Techno-economic comparison of operational aspects for direct drive and gearbox-driven wind turbines / McMillan, D. in IEEE transactions on energy conversion, Vol. 25 N° 1 (Mars 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25 N° 1 (Mars 2010) . - pp. 191 - 198 Titre : Techno-economic comparison of operational aspects for direct drive and gearbox-driven wind turbines Type de document : texte imprimé Auteurs : McMillan, D., Auteur ; Ault, Graham W., Auteur Année de publication : 2010 Article en page(s) : pp. 191 - 198 Note générale : energy concersion Langues : Anglais (eng) Mots-clés : wind  turbines;  Markov  chain Résumé : The majority of wind turbines currently in operation have the conventional Danish concept design-that is, the three-bladed rotor of such turbines is indirectly coupled with an electrical generator via a gearbox. Recent technological developments have enabled direct drive wind turbines to become economically feasible. Potentially, direct drive wind turbines may enjoy higher levels of availability due to the removal of the gearbox from the design. However, this is only a theory: so far not substantiated by detailed analytic calculation. By providing such a calculation, this paper enables us to quantitatively evaluate technical and economic merits of direct drive and gearbox-driven wind turbines. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5416624&sortType%3Das [...] [article] Techno-economic comparison of operational aspects for direct drive and gearbox-driven wind turbines [texte imprimé] / McMillan, D., Auteur ; Ault, Graham W., Auteur . - 2010 . - pp. 191 - 198. energy concersion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25 N° 1 (Mars 2010) . - pp. 191 - 198 Mots-clés : wind  turbines;  Markov  chain Résumé : The majority of wind turbines currently in operation have the conventional Danish concept design-that is, the three-bladed rotor of such turbines is indirectly coupled with an electrical generator via a gearbox. Recent technological developments have enabled direct drive wind turbines to become economically feasible. Potentially, direct drive wind turbines may enjoy higher levels of availability due to the removal of the gearbox from the design. However, this is only a theory: so far not substantiated by detailed analytic calculation. By providing such a calculation, this paper enables us to quantitatively evaluate technical and economic merits of direct drive and gearbox-driven wind turbines. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5416624&sortType%3Das [...]