公开(公告)号：US11965484B2

公开(公告)日：2024-04-23

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

CPC classification number: F03D7/0296 ,  F03D7/0224 ,  F03D7/042 ,  F05B2260/74 ,  F05B2260/90 ,  F05B2260/964 ,  F05B2270/328 ,  F05B2270/334 ,  Y02E10/72

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：US11815067B2

公开(公告)日：2023-11-14

申请号：US17843522

申请日：2022-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Spagnolo ,  Julio Xavier Vianna Neto ,  Karthik Vasudevan ,  Naga Srinivas Kamarajugadda ,  Fabio Caponetti

IPC: F03D7/02

CPC classification number: F03D7/026 ,  F05B2270/32 ,  F05B2270/327

Abstract: The invention relates to a method for controlling a wind turbine during start up, from a non-producing operation mode to a power producing operation mode when limit cycles occur during start-up. Limit cycles are detected when a number of cut-in transitions or a number of cut-out transitions are detected. A cut-in transition is when the wind turbine fails starting up despite having the wind speed or rotor speed normally required to enter a power producing operation mode. A cut-out transition is occurring when the wind turbine is falling out of power producing operation mode after having entered the power producing operation mode.

公开(公告)号：US20230243342A1

公开(公告)日：2023-08-03

申请号：US18010780

申请日：2021-06-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ines Pinto Frutuoso ,  Johnny Nielsen ,  Fabio Caponetti

IPC: F03D80/40 ,  F03D7/02

CPC classification number: F03D80/40 ,  F03D7/02 ,  F05B2270/32 ,  F05B2270/323 ,  F05B2270/324 ,  F05B2270/325 ,  F05B2270/327

Abstract: A first aspect of the invention provides a method of controlling a rotor of a wind turbine, the method comprising: obtaining a determination of whether there is ice on the rotor; obtaining one or more factors; generating an ice likelihood based on the obtained one or more factors, wherein the ice likelihood is indicative of whether it is likely that ice is building up on the rotor or thawing on the rotor; generating a confidence level based on the determination and the ice likelihood, wherein the confidence level provides an indication of the confidence that the determination is true; and controlling the wind turbine based on the confidence level.

公开(公告)号：US11319925B2

公开(公告)日：2022-05-03

申请号：US16954186

申请日：2018-12-04

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Jesper Sandberg Thomsen

IPC: F03D9/00 ,  H02P9/04 ,  F03D7/02 ,  F03D7/04

Abstract: A method for wind turbine tower damping is disclosed, as well as an associated controller and wind turbine. The method comprises determining, using one or more sensor signals, dynamic state information for a tower of a wind turbine during power production, wherein the dynamic state information comprises a tower frequency. The method further comprises determining at least one control loop gain value using the tower frequency, and generating, using the at least one control loop gain value, one or more control signals for controlling a rotational speed of a rotor of the wind turbine.

公开(公告)号：US11143165B2

公开(公告)日：2021-10-12

申请号：US15736678

申请日：2016-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Dan Hilton

IPC: F03D17/00 ,  G01K13/00 ,  G01B11/16

Abstract: A method for determining the load on a wind turbine blade, comprising: measuring the blade load by way of a wind turbine blade load sensor; estimating the temperature of the blade; and determining, based on the estimated temperature and the measured load, a temperature-corrected value for the load on the wind turbine blade. The invention also relates to a sensor system for a wind turbine blade, the system comprising a load sensor; a processing unit interfaced with the load sensor and configured to provide a temperature-corrected load parameter as an output, wherein the processing unit includes: a temperature estimation module that determines an estimated temperature of the blade in the vicinity of the load sensor based on at least one wind turbine parameter; and a load compensation module that determines the temperature-corrected load parameter based on the estimated temperature and the measurement of the load sensor.

公开(公告)号：US10677225B2

公开(公告)日：2020-06-09

申请号：US15580001

申请日：2016-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Kasper Zinck Ostergaard ,  Dan Hilton

IPC: F03D17/00 ,  F03D13/35 ,  F03D7/02 ,  G05B19/042

Abstract: A method of calibrating load sensors of a wind turbine, and a wind turbine for such load sensor calibration, are disclosed. The wind turbine comprises a rotor, a plurality of rotor blades, and a plurality of load sensors associated with the rotor blades. While the rotor is rotating, at least one of the rotor blades is moved from a first calibration position to a second calibration position, and load values from the load sensors are measured. The number of rotor blades being moved is at least one fewer than the number of the plurality of rotor blades. The rotation of the rotor may be during idling of the wind turbine. The movement of the blade(s) may be to change the pitch angle of the blade(s). At least one of the rotor blades not being moved to a calibration position may also be moved, for example to control the rotational speed of the rotor.

公开(公告)号：US11976631B2

公开(公告)日：2024-05-07

申请号：US18010788

申请日：2021-06-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Karthik Vasudevan ,  James Alexander Nichols ,  Jacob Deleuran Grunnet

IPC: F03D7/02

CPC classification number: F03D7/0256 ,  F03D7/0224 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/328 ,  F05B2270/335 ,  F05B2270/70

Abstract: Methods of measuring a stall condition of a rotor of a wind turbine are disclosed. In one aspect a stall parameter is obtained on the basis of the power parameter and a thrust parameter; and the stall parameter compared with a threshold to determine a stall condition of the rotor.

公开(公告)号：US11286911B2

公开(公告)日：2022-03-29

申请号：US16617206

申请日：2018-05-25

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Kristian Kiib ,  Dan Hilton

IPC: F03D17/00 ,  F03D7/02 ,  F03D7/04

Abstract: This application describes a method of detecting an error in a rotor angle sensing system of a wind turbine, where the wind turbine comprises a rotor including a plurality of wind turbine blades, a blade load sensor associated with a respective one of the wind turbine blades, and a rotor angle sensing system configured to output a rotor angle signal. The blade load sensor is configured to output a measured blade load signal. The method comprises generating an estimated blade load signal based on at least the rotor angle signal; comparing the estimated blade load signal with the measured blade load signal to determine a phase difference between them; and identifying an error if the phase difference between the estimated blade load signal and the measured blade load signal exceeds a predetermined threshold.

公开(公告)号：US11092135B2

公开(公告)日：2021-08-17

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.

公开(公告)号：US10920747B2

公开(公告)日：2021-02-16

申请号：US15767258

申请日：2016-10-11

Applicant: Vestas Wind Systems A/S

Inventor： Martin Ansbjerg Kjær ,  Frank Møller Hansen ,  Jacob Hviid Nielsen ,  Jesper Lykkegaard Neubauer ,  Poul Brandt Christensen ,  Fabio Caponetti ,  Christian Skallebæk ,  Robert Grøn-Stevens ,  Kasper Zinck Østergaard

IPC: F03D7/02

Abstract: There is provided a method for controlling a hydraulic pitch force system (220) so as to reduce or eliminate a decrease in hydraulic oil pressure (241) if a hydraulic system parameter value is outside a hydraulic system parameter range, the method comprising: Obtaining (690) the hydraulic system parameter value, and operating the hydraulic pitch force system (220) according to a reduced mode (692) if the hydraulic system parameter value is outside the hydraulic system parameter range, wherein in the reduced mode one or more pitch based activities are reduced (694) or suspended. An advantage thereof may be that it enables keeping the wind turbine in production in certain instances rather than shutting down the wind turbine. In aspects, there is furthermore presented a computer program product, a pitch control system (250) and a wind turbine (100).