Wind turbine, a method for damping edgewise oscillations in one or more blades of a wind turbine by changing the blade pitch and use hereof
AssigneeVestas Wind Systems A/S
InventorsThomas Steiniche Bjertrup Nielsen, Christopher John Spruce
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Abstract
The invention relates to a wind turbine comprising a rotor including one or more pitchable blades, and detection means for detecting edgewise oscillations in one or more of said blades. The wind turbine is characterized in that the wind turbine comprises control means for changing the pitch angle of one or more of the blades if the detection means detects edgewise oscillations in one or more of the blades, hereby damping or eliminating the edgewise oscillations. The invention further relates to a method for damping edgewise oscillations in one or more blades of a wind turbine and use hereof.
Claims18
A wind turbine comprising
- a rotor including one or more pitchable blades, and
- detection means for detecting edgewise oscillations in one or more of said blades,
- characterized in that
- said wind turbine comprises control means for changing a pitch angle of one or more of said blades if said detection means detects edgewise oscillations in one or more of said blades, hereby damping or eliminating said edgewise oscillations.
A method for damping edgewise oscillations in one or more blades of turbine, said method comprising the steps of
- detecting if one or more of said blades oscillates edgewise, and
- changing a pitch angle of one or more of said blades if edgewise oscillations is detected in one or more of said blades.
Dependencies are inferred from the claim text.