公开(公告)号：US20250059949A1

公开(公告)日：2025-02-20

申请号：US18720215

申请日：2022-12-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Jesper Sandberg THOMSEN ,  Anders Druedahl THURLOW ,  Alexander Duncan GILES ,  Yi HAN

IPC: F03D7/02

Abstract: A method for controlling a wind turbine to decrease blade deflection during tower passage is disclosed. A blade flap moment of the wind turbine blades is measured. A blade flap moment of the wind turbine blades and a rotor tilt moment in a situation where the pitch offset has not been added are estimated, based on the measured blade flap moment. In the case that the estimated blade flap moment exceeds a first activation threshold value and the estimated rotor tilt moment exceeds a second activation threshold value, individual pitch angle adjustment of the wind turbine blades is initiated by adding a pitch offset, at azimuth angles within an azimuth adjustment region corresponding to tower passage of the wind turbine blades.