A wind turbine, a method for damping edgewise oscillations...

F - Mech Eng,Light,Heat,Weapons – 03 – D

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F03D 7/02 (2006.01)

Patent

CA 2664917

A wind turbine (1) comprising a rotor (4) including one or more pitchable blades (5), and detection means (21) for detecting edgewise oscillations in one or more of said blades (5). The wind turbine (1) is characterized in that the wind turbine (1) comprises control means (25) for changing the pitch angle of one or more of the blades (5) if the detection means (21) detects edgewise oscillations in one or more of the blades (5), hereby damping or eliminating the edgewise oscillations. A method for damping edgewise oscillations in one or more blades (5) of a wind turbine (1) and use hereof are also described.

La présente invention concerne une éolienne (1) composée d'un rotor (4) comprenant une ou plusieurs pales inclinables (5), et des moyens de détection destinés à détecter des oscillations dans le sens de la traînée sur une ou plusieurs desdites pales (5). L'éolienne (1) est caractérisée en ce qu'elle comprend des moyens de commande (25) destinés à modifier l'angle d'une ou de plusieurs des pales (5), ce qui a pour effet d'amortir ou d'éliminer les oscillations dans le sens de la traînée. Est également décrit un procédé destiné à amortir des oscillations dans le sens de la traînée sur une ou plusieurs pales (5) de l'une éolienne, et son utilisation.

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