Reducing the load of a wind turbine rotor blade during installation
AssigneeSiemens Aktiengesellschaft
InventorsPeder Bay Enevoldsen, Alejandro Gomez Gonzalez
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Abstract
A method of reducing the load of a rotor blade of a wind turbine during installation of the wind turbine, whereby the rotor blade includes an aerodynamic device such as a vortex generator or a noise reducer is provided. The method includes the steps of attaching a cover on the rotor blade for covering at least a part of the aerodynamic device before lifting the rotor blade to the top of the tower of the wind turbine, and detaching the cover subsequently. An arrangement including a rotor blade of a wind turbine and such a cover, is also provided.
Claims16
A method of reducing a load of a rotor blade of a wind turbine during installation of the wind turbine, wherein the rotor blade comprises an aerodynamic device arranged at a surface of the rotor blade, of the method comprising:
- attaching a cover) on the rotor blade such that at least a part of the aerodynamic device is covered by the cover;
- lifting the rotor blade to a top of a tower of the wind turbine ;
- and
- detaching the cover from the rotor blade.
An arrangement comprising:
- a rotor blade of a wind turbine and a cover, wherein the rotor blade comprises an aerodynamic device arranged at a surface of the rotor blade, the cover covering at least a part of the aerodynamic device such that airflow which flows across the aerodynamic device is deflected at the cover,
- wherein the cover is configured and arranged such that a maximum lift coefficient of the arrangement is reduced compared to a maximum lift coefficient of the rotor blade during installation of the wind turbine,
- wherein the covens prepared to be detached from the rotor blade after installation of the wind turbine.
Dependencies are inferred from the claim text.