| 摘要 |
A method of actuating a flap (9) in a wind turbine rotor blade is provided wherein a fluid is used for reversibly expanding an actuating element (16) acting a movable part (13) of the flap by varying the fluid pressure in the actuating element (16). Further, a wind turbine rotor with a rotor blade comprising a flap (9) and a flap actuating system, where the flap comprises a fixed part (12) that is fixed to the rotor blade and a movable part (13) that is movable relative to the fixed part (12), is disclosed, in which the flap actuating system comprises an actuating element (16) with a reversible changeable volume located between the movable part (13) of the flap and the fixed part (12) of the flap, a fluid within the actuating element (16) the pressure of which is settable and a pressure setting device which is designed to press fluid into or release fluid from the element (16) as to change its volume. |
