Patent ID: 8068939
Filing Date: 2011-11-29
Classification: F03D,F05B,Y02E

Abstract:
1. A method for the operation of a wind energy plant, the wind energy plant comprising a control system which can preset a desired value for an electric variable of the wind energy plant to be generated; and a control unit, on which the measured values for the wind velocity and the wind direction are present, the method comprising: providing a wind measurement device for measuring a direction of wind and a wind velocity; providing at least one sector of critical wind directions to the control unit, determining if the measured direction of wind falls within the at least one sector of critical wind directions provided to the control unit; generating a control signal only when the measured wind direction is in one of the at least one sector of the critical wind directions and a determined characteristic value exceeds a predetermined maximum value for the characteristic value, the control unit providing the control signal to the control system in order to reduce the desired value of the electric variable to be generated.