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International Journal of Aerospace Engineering
Volume 2012 (2012), Article ID 860510, 12 pages
doi:10.1155/2012/860510
Research Article

On Singular Perturbations of Flexible and Variable-Speed Wind Turbines

R. Oulad Ben Zarouala,1,2 C. Vivas,1 J. Á. Acosta,1 and L. El Bakkali2

1Departamento de Ingeniería de Sistemas y Automática, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
2Team Modelling and Simulation of Mechanical Systems, Faculty of Sciences at Tetouan, University Abdelmalek Essaadi, BP 2121, M’Hannech, 93002 Tetouan, Morocco

Received 31 October 2011; Accepted 5 February 2012

Academic Editor: Paul Williams

Copyright © 2012 R. Oulad Ben Zarouala et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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