US 12,448,947 B2
Method of damping motion of a floating wind turbine
Jesper Sandberg Thomsen, Hadsten (DK); Alexander Duncan Giles, Oporto (PT); and Ian Couchman, Aarhus N (DK)
Assigned to VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
Appl. No. 18/699,433
Filed by VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
PCT Filed Oct. 7, 2022, PCT No. PCT/DK2022/050208
§ 371(c)(1), (2) Date Apr. 8, 2024,
PCT Pub. No. WO2023/057029, PCT Pub. Date Apr. 13, 2023.
Claims priority of application No. 202170500 (DK), filed on Oct. 8, 2021.
Prior Publication US 2024/0410333 A1, Dec. 12, 2024
Int. Cl. F03D 7/02 (2006.01); F03D 13/25 (2016.01)
CPC F03D 7/0298 (2023.08) [F03D 7/0224 (2013.01); F03D 13/256 (2023.08); F05B 2240/93 (2013.01); F05B 2260/964 (2013.01); F05B 2270/32 (2013.01); F05B 2270/321 (2013.01); F05B 2270/329 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of damping motion of a wind turbine, the wind turbine comprising a rotor with a blade pitch angle and a floating platform, the method comprising:
generating a motion signal which is indicative of a motion of the wind turbine;
generating a wind direction signal which is indicative of a wind direction relative to the floating platform;
generating a damping signal on the basis of the motion signal and the wind direction signal; and
damping the motion of the wind turbine on the basis of the damping signal by controlling the blade pitch angle,
wherein a phase or amplitude of the damping signal is controlled on the basis of the wind direction signal, and
wherein generating the wind direction signal comprises: determining a yaw angle of the rotor relative to the floating platform; measuring a relative wind direction with a wind sensor, wherein the relative wind direction is indicative of a wind direction relative to the rotor; and generating the wind direction signal on the basis of the yaw angle and the relative wind direction.