Patent ID: 11879425
Assignee: GE INFRASTRUCTURE TECHNOLOGY LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A proactive method for preventing vibrations in one or more rotor blades of a wind turbine when the wind turbine is in a standstill idling state with a rotor hub free to rotate, the method comprising:
determining a minimum revolution rate of the rotor blades that prevents vibrations of the rotor blades;
determining that the revolution rate of the rotor blades is below the minimum revolution rate;
detecting one or more wind parameters for wind impacting the rotor blades and determining if the wind parameters are above a threshold limit;
determining that grid power is available to the wind turbine;
based on the wind parameters, with a controller, determining a pitch angle for one or more of the rotor blades to increase rotation of the blades to at least the minimum revolution rate;
with the controller, pitching the rotor blades to the pitch angle; and
wherein the rotor blades are pitched to increase the revolution rate of the rotor blades prior to vibrations being induced in the rotor blades.