Patent ID: 11965484
Assignee: VESTAS WIND SYSTEMS A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 10:
11. A control system for a wind turbine, the control system comprising:
one or more computer processors configured to perform an operation comprising:
measuring a motion parameter of a rotor blade of the wind turbine;
determining, based on the motion parameter, a vibration velocity of an edgewise vibration at a center of mass of the rotor blade;
generating, based on the vibration velocity of the edgewise vibration at the center of mass of the rotor blade, a blade pitch angle control signal; and
transmitting the blade pitch angle control signal to a pitch actuator of the wind turbine to damp the edgewise vibration at the center of mass of the rotor blade,

wherein a resulting force on the rotor blade pitched according to the blade pitch angle control signal is, in a direction of the edgewise vibration in a coordinate system that rotates with a rotor of the wind turbine, opposite and proportional to the vibration velocity of the edgewise vibration at the center of mass of the rotor blade.