Patent ID: 9127645
Filing Date: 2015-09-08
Classification: F03D,F05B,Y02E

Abstract:
1. A method for controlling a wind turbine comprising a rotor which can be driven by wind, can rotate about a horizontally or substantially horizontally aligned rotor axis and comprises a plurality of rotor blades which each extend in the direction of a blade axis running transversely or substantially transversely to the rotor axis about which the respective rotor blade is rotated, the rotor being rotated about a vertically or substantially vertically aligned yaw axis, at a yaw angular velocity, as a result of which gyroscopic loads are generated on the rotor blades, and wherein the method comprises: using a blade angle control unit to rotate the rotor blades about their blade axes subject to at least one of: receiving status information from the blade angle control unit to monitor adjustment of the rotor blades about their blade axes during a yaw adjustment operation, and interrupting the yaw adjustment operation if the status information indicates that a difference between a current blade angle rate of change and a set value for blade angle rate exceeds a predetermined threshold.