@article {95,
	title = {Wind turbine efficiency optimization. Comparative study of controllers based on second order sliding modes},
	journal = {International Journal of Hydrogen Energy},
	volume = {35},
	year = {2010},
	pages = {5934 - 5939},
	abstract = {<p>This paper studies the applicability of second order sliding mode control strategies to a wind energy conversion system aiming to optimise its power conversion efficiency. Four different controllers are designed and analysed, based on the {\^a}{\texteuro}{\oe}sub-optimal{\^a}{\texteuro}�, {\^a}{\texteuro}{\oe}twisting{\^a}{\texteuro}�, {\^a}{\texteuro}{\oe}super-twisting{\^a}{\texteuro}� and {\^a}{\texteuro}{\oe}with a prescribed law of variation{\^a}{\texteuro}� algorithms, which present finite-time convergence, robustness, chattering and mechanical stress reduction, and are of quite simple online operation and implementation. Representative simulation results are shown, using a complete model of the system under realistic operating conditions, where the performance of the controlled system can be appreciated for each of the controllers and some comparisons can be made.</p>
},
	keywords = {Wind energy},
	issn = {0360-3199},
	doi = {http://dx.doi.org/10.1016/j.ijhydene.2009.12.104},
	url = {http://www.sciencedirect.com/science/article/pii/S0360319909020321},
	author = {Evangelista, Carolina A. and Puleston, Pablo F. and Valenciaga, Fernando}
}
