High-Order Sliding-Mode Control of Variable-Speed Wind Turbines

Brice Beltran (1) , Tarek Ahmed-Ali (2) , Mohamed Benbouzid (1)

1 LBMS - Laboratoire brestois de mécanique et des systèmes
2 Equipe Automatique - Laboratoire GREYC - UMR6072

This paper deals with the power generation control in variable-speed wind turbines. These systems have two operation regions which depend on wind turbine tip speed ratio. A high-order sliding-mode control strategy is then proposed to ensure stability in both operation regions and to impose the ideal feedback control solution in spite of model uncertainties. This control strategy presents attractive features such as robustness to parametric uncertainties of the turbine. The proposed slidingmode control approach has been validated on a 1.5-MW threeblade wind turbine using the National Renewable Energy Laboratory wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Validation results show that the proposed control strategy is effective in terms of power regulation.Moreover, the sliding-mode approach is arranged so as to produce no chattering in the generated torque that could lead to increased mechanical stress because of strong torque variations.

Mots clés: High-order sliding mode; power generation control; wind turbine

Domaines: Energie électrique

Brice Beltran, Tarek Ahmed-Ali, Mohamed Benbouzid. High-Order Sliding-Mode Control of Variable-Speed Wind Turbines. IEEE Transactions on Industrial Electronics, 2009, 56 (9), pp.3314-3321. ⟨10.1109/TIE.2008.2006949⟩. ⟨hal-00525191⟩