Patent ID: 9739265
Date: 2017-08-22
CPC Classifications: F03D,F05B,Y02E

Claim:
1. A method of operating a wind turbine comprising a plurality of blades, each of the blades being rotatable along its longitudinal axis using a pitch mechanism, and each of the blades comprising one or more movable trailing edge surfaces, the method comprising: at a first moment in time predicting that a first of the blades will experience a high load at a later second moment in time, before the second moment in time, actuating one or more of the movable trailing edge surfaces of the first blade such that the trailing edge surfaces of the first blade are moved from an initial position to a modified position that will provide a wider range of control to counteract the first high load at the second moment in time, and simultaneously pitching the first blade to a position to at least partially compensate for lift changes induced in the first blade by movement of the trailing edge surfaces to the modified position, and at the second moment in time, actuating the one or more movable trailing edge surfaces of the first blade from the modified position to a final position to counteract the first high load.