| 摘要 |
The present invention relates to a wind turbine blade for a rotor of a wind turbine having a substantially horizontal rotor shaft and a hub connected to the rotor shaft. The blade may extend in a substantially radial direction from the hub and when mounted to the hub. The blade may comprise a profiled contour comprising a pressure side and a suction side and a leading edge and a trailing edge connecting the pressure side and the suction side, and a lift regulating device comprising a magnetisable material and an operation device comprising an electromagnet configured to operate the lift regulating device between a first state and a second state. Further, the present invention relates to a method of operating a wind turbine configured to convert wind energy to electrical energy. The wind turbine may comprise a tower having a first and an opposite second end, a nacelle positioned at the first end of the tower, a substantially horizontal rotor shaft rotatably mounted in the nacelle, a hub mounted at the rotor shaft, a blade for a rotor of a wind turbine having a substantially horizontal rotor shaft, the blade extending in a substantially radial direction from the hub when mounted to the hub. The blade may comprise a profiled contour comprising a pressure side and a suction side and a leading edge and a trailing edge connecting the pressure side and the suction side, a lift regulating device comprising a magnetisable material and an operation device comprising an electromagnet configured to operate the lift regulating device between a first state and a second state. The method may comprise the steps of obtaining information regarding current wind conditions at the wind turbine, and determining lift regulating device settings based on the current wind conditions.
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