公开(公告)号：US20210372369A1

公开(公告)日：2021-12-02

申请号：US17402085

申请日：2021-08-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio CAPONETTI ,  Claus Thy HENNINGSEN ,  Robert GRØN-STEVENS

IPC: F03D7/02 ,  F03D7/04

Abstract: There is presented a method for damping an edgewise vibration of a rotor blade of a wind turbine, wherein the method comprises measuring at the rotor blade a motion parameter of the edgewise rotor blade vibration, generating based on said motion parameter a blade pitch angle control signal, and damping the edgewise vibration of the rotor blade by pitching the rotor blade according to the blade pitch angle control signal, wherein the blade pitch angle control signal is arranged so that a resulting force on a rotor blade pitched according to the blade pitch angle control signal, in a direction of the edgewise vibration of the rotor blade in a coordinate system, which rotates with a rotor of the wind turbine, is opposite and proportional to the edgewise rotor blade vibration velocity.

公开(公告)号：US20230400011A1

公开(公告)日：2023-12-14

申请号：US18250954

申请日：2021-10-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Nicolaj Winther JOHANSEN ,  Mranal GUPTA ,  Kaj Dam MADSEN ,  Brian Ank MERTZ ,  Claus Thy HENNINGSEN

IPC: F03D7/02

CPC classification number: F03D7/0296 ,  F05B2260/96 ,  F05B2270/504 ,  F05B2270/402

Abstract: The invention provides a method of reducing noise emissions of a wind turbine. The method includes receiving data indicative of wind conditions in the vicinity of the wind turbine, and determining an operational set point signal in accordance with a desired operation of the wind turbine, the operational set point signal being determined based on the received data. The method includes applying a perturbation signal to the operational set point signal to obtain a modified operational set point signal, and controlling operation of the wind turbine using the modified operational set point signal to reduce noise emissions of the wind turbine. The perturbation signal is applied such that the modified operational set point signal has greater temporal variation than the operational set point signal.

公开(公告)号：US20190154002A1

公开(公告)日：2019-05-23

申请号：US16308676

申请日：2017-06-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio CAPONETTI ,  Claus Thy HENNINGSEN ,  Robert GRØN-STEVENS

IPC: F03D7/02 ,  F03D7/04

Abstract: There is presented a method for damping an edgewise vibration of a rotor blade of a wind turbine, wherein the method comprises measuring at the rotor blade a motion parameter of the edgewise rotor blade vibration, generating based on said motion parameter a blade pitch angle control signal, and damping the edgewise vibration of the rotor blade by pitching the rotor blade according to the blade pitch angle control signal, wherein the blade pitch angle control signal is arranged so that a resulting force on a rotor blade pitched according to the blade pitch angle control signal, in a direction of the edgewise vibration of the rotor blade in a coordinate system, which rotates with a rotor of the wind turbine, is opposite and proportional to the edgewise rotor blade vibration velocity.