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Nonlinear Control of Wind Turbines: An Approach Based on Switched Linear Systems and Feedback Linearization


R. Burkart, K. Margellos, J. Lygeros

IEEE Conference on Decision and Control, Orlando, Fl, USA

The main contribution of this paper is the development of a nonlinear control technique for the control of individual wind turbines in a wind farm. For this purpose, a control scheme based on feedback linearization and gain scheduled linear quadratic regulator (LQR) is applied to a horizontal axis, variable speed, pitch regulated wind turbine. As a result of the physical constraints of their components, wind turbines operate at different control modes with different control objectives. To capture this hybrid nature, a flexible modeling framework based on the notion of hybrid systems is introduced, and the developed controller is designed so as to operate in all modes and over a wide range of wind speeds. The performance and the efficiency of the proposed approach is validated via simulations, and is compared with standard LQR approaches.


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% Autogenerated BibTeX entry
@InProceedings { BurMar:2011:IFA_3854,
    author={R. Burkart and K. Margellos and J. Lygeros},
    title={{Nonlinear Control of Wind Turbines: An Approach Based on
	  Switched Linear Systems and Feedback Linearization}},
    booktitle={IEEE Conference on Decision and Control},
    address={Orlando, Fl, USA},
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