Patent ID: 7522976

Claim:
A method for operating a wind energy installation, wherein the wind energy installation ( 10 ) comprises a rotor ( 16 ), which can be driven by wind, with at least one rotor blade ( 20 ), and a generator for converting mechanical energy of the rotor ( 16 ) to electrical energy, comprising the steps of: a) during operation of the wind energy installation ( 10 ), measuring parameters on the side of the wind energy installation ( 10 ) facing the wind, which parameters describe the wind conditions in the measurement region; b) measuring the wind parameters at horizontal distances from the rotor ( 16 ), which are selected such that an angle of incidence of the at least one rotor blade can be adjusted in response to the measured wind parameters before the wind on which the wind parameters are based reaches the rotor ( 16 ); c) depending on the measured wind parameters, controlling and/or regulating the power output of the wind energy installation ( 10 ) to a superordinate power supply system to which the wind energy installation ( 10 ) is connected; and d) the controlling and/or regulating of the power output takes place depending on the measured wind parameters in accordance with predetermined power output scenarios, wherein i) in the event of an expected fall in the power output of the wind energy installation based on the measured wind parameters, adjusting the angle of incidence of the at least one rotor blade such that the fall in the power output takes place in accordance with a predetermined function, and ii) in the event of an expected rise in the power output of the wind energy installation based on the measured wind parameters, adjusting the angle of incidence of the at least one rotor blade such that the rise in the power output takes place in accordance with a predetermined function.