@article {88,
	title = {Lyapunov-Designed Super-Twisting Sliding Mode Control for Wind Energy Conversion Optimization},
	journal = {Industrial Electronics, IEEE Transactions on},
	volume = {60},
	year = {2013},
	month = {Feb},
	pages = {538-545},
	abstract = {<p>This work explores an adaptive second-order sliding mode control strategy to maximize the energy production of a wind energy conversion system (WECS) simultaneously reducing the mechanical stress on the shaft. Such strategy successfully deals with the random nature of wind speed, the intrinsic nonlinear behavior of the WECS, and the presence of model uncertainties and external perturbations acting on the system. The synthesized adaptive controller is designed from a modified version of the super-twisting (ST) algorithm with variable gains. The suitability of the proposed strategy is proved by extensive computer-aided simulations employing a comprehensive model of the system emulating realistic conditions of operation, i.e., considering variations in the parameters and including external disturbances. Additionally, a second controller based on the traditional ST algorithm is also designed and simulated. Results are presented and discussed in order to establish a comparison framework.</p>
},
	keywords = {adaptive control, adaptive second-order control strategy, Algorithm design and analysis, CAD, Computational modeling, control system synthesis, Control systems, direct energy conversion, extensive computer-aided simulations, external disturbances, external perturbations, Generators, intrinsic nonlinear behavior, Lyapunov methods, Lyapunov-designed super-twisting sliding mode control, mechanical stress reduction, model uncertainties, Sliding mode control, ST algorithm, suitability strategy, super-twisting (ST), system emulating realistic conditions, Torque, variable gains, variable structure systems, WECS, wind energy conversion optimization, wind power, Wind power generation, Wind speed, wind turbines},
	issn = {0278-0046},
	doi = {10.1109/TIE.2012.2188256},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6153362},
	author = {Evangelista, Carolina A. and Puleston, Pablo F. and Valenciaga, Fernando and Fridman, Leonid M.}
}
@article {72,
	title = {Dynamical sliding mode power control of wind driven induction generators},
	journal = {Energy Conversion, IEEE Transactions on},
	volume = {15},
	year = {2000},
	month = {Dec},
	pages = {451-457},
	abstract = {<p>This paper concerns power regulation of variable-speed wind energy conversion systems. These systems have two regions of operation, depending on the tip speed ratio of the wind turbines. They are distinguished by a minimum phase behavior in one of these regions and a nonminimum phase one in the other. A sliding mode control strategy is proposed that assures stability in both regions of operation and imposes the ideally designed feedback control solution in spite of model uncertainties. Moreover, power regulation by the proposed sliding control in the minimum phase region is completely robust to wind disturbances and parameter uncertainties</p>
},
	keywords = {asynchronous generators, Control systems, dynamical sliding mode power control, feedback, ideally designed feedback control solution, Induction generators, machine control, minimum phase behavior, minimum phase region, model uncertainties, nonminimum phase region, parameter uncertainties, Power control, Power generation, power regulation, Power system modeling, Robustness, Sliding mode control, stability, tip speed ratio, variable speed gear, variable structure systems, variable-speed wind energy conversion systems, wind disturbances, wind driven induction generators, Wind energy, Wind energy generation, Wind power generation, wind turbines},
	issn = {0885-8969},
	doi = {10.1109/60.900507},
	url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=900507},
	author = {De Battista, Hern{\'a}n and Mantz, Ricardo J. and Christiansen, Carlos F.}
}
