ENHANCED WAKE MIXING FOR FLOATING WIND TURBINES

Wind turbine comprising a rotor, comprising at least a first blade, and a supporting structure for supporting said rotor up in the air; wherein said first blade is arranged to rotate in a rotor plane around a rotor axis of the rotor and wherein said first blade is rotatable by a blade pitch driving...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JAN WILLEM VAN WINGERDEN, DANIËL VAN DEN BERG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Wind turbine comprising a rotor, comprising at least a first blade, and a supporting structure for supporting said rotor up in the air; wherein said first blade is arranged to rotate in a rotor plane around a rotor axis of the rotor and wherein said first blade is rotatable by a blade pitch driving mechanism around a blade pitch axis that is substantially parallel to a longitudinal axis of the blade, wherein said rotor axis is movable in at least one of a rotational tilt direction, a rotational yaw direction and a fore-aft translational direction and wherein the wind turbine further comprises a controller for controlling the wind turbine by varying an induction factor of the first blade over time while the rotor rotates around its rotor axis, wherein the controller is further arranged for varying said induction factor of the first blade by controlling the blade pitch driving mechanism for applying an oscillatory blade pitch rotation to the first blade , and by inducing an oscillatory motion of the rotor axis in the at least one of the rotational tilt direction, the rotational yaw direction and the fore-aft translational direction.