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Energies 2012, 5(8), 3033-3050; doi:10.3390/en5083033

Power Control Design for Variable-Speed Wind Turbines

1,* , 1
1 Control Dynamics and Applications Research Group (CoDAlab), Barcelona College of Industrial Engineering, Polytechnic University of Catalonia, Comte d’Urgell, 187, Barcelona 08036, Spain 2 Modal Intervals and Control Engineering Research Group, Department of Electrical Engineering, Electronics and Automatic Control, Institute of Informatics and Applications, University of Girona, Campus Montilivi, P-IV, Girona 17071, Spain
* Author to whom correspondence should be addressed.
Received: 25 June 2012 / Revised: 3 August 2012 / Accepted: 3 August 2012 / Published: 13 August 2012
(This article belongs to the Special Issue Wind Turbines)
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This paper considers power generation control in variable-speed variable-pitch horizontal-axis wind turbines operating at high wind speeds. A dynamic chattering torque control and a proportional integral (PI) pitch control strategy are proposed and validated using the National Renewable Energy Laboratory wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Validation results show that the proposed controllers are effective for power regulation and demonstrate high-performances for all other state variables (turbine and generator rotational speeds; and smooth and adequate evolution of the control variables) for turbulent wind conditions. To highlight the improvements of the provided method, the proposed controllers are compared to relevant previously published studies.
Keywords: wind turbine; variable-pitch; power regulation wind turbine; variable-pitch; power regulation
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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Vidal, Y.; Acho, L.; Luo, N.; Zapateiro, M.; Pozo, F. Power Control Design for Variable-Speed Wind Turbines. Energies 2012, 5, 3033-3050.

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