Wind turbine blade with self-adaptive tip-sweep
AssigneeUnited Arab Emirates University
InventorsMd. Zishan Akhter, Farag Khalifa Omar
Life of this patent
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Abstract
A blade for a rotor of a wind turbine, the blade comprising: an inboard portion; an outboard portion connected to the inboard portion, wherein the outboard portion is deflectable by a variable sweep angle in an edgewise direction of the blade; and a passive mechanism configured to adjust the sweep angle in response to an amount of flapwise moment acting on the blade, such that the magnitude of the sweep angle increases in response to an increased flapwise moment, and decreases in response to a decreased flapwise moment.
Claims20
A blade for a rotor of a wind turbine (1), the blade comprising:
- an inboard portion;
- an outboard portion connected to the inboard portion, wherein the outboard portion is deflectable by a variable sweep angle (θ) in an edgewise direction of the blade;
- and
- a passive mechanism configured to adjust the sweep angle in response to an amount of flapwise moment acting on the blade, such that the magnitude of the sweep angle (|θ|) increases in response to an increased flapwise moment, and decreases in response to a decreased flapwise moment.
A wind turbine rotor comprising a plurality of blades, wherein each blade comprises:
- an inboard portion;
- and
- an outboard portion connected to the inboard portion, wherein the outboard portion is deflectable by a variable sweep angle (θ) in the edgewise direction of the blade;
- and
- wherein the wind turbine rotor comprises a passive mechanism configured to adjust the sweep angle in response to an amount of flapwise moment acting on the blade, such that the magnitude of the sweep angle (|θ|) increases in response to an increased flapwise moment, and decreases in response to a decreased flapwise moment.
Dependencies are inferred from the claim text.