公开(公告)号：US11293401B2

公开(公告)日：2022-04-05

申请号：US16954178

申请日：2018-12-13

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 generating, using at least a first sensor signal, a first pitch reference signal for one or more rotor blades of a wind turbine during partial load operation. The method further comprises determining, using at least a second sensor signal, dynamic state information for a tower of the wind turbine. The method further comprises generating a second pitch reference signal by adapting the first pitch reference signal using the dynamic state information. The method further comprises selecting a maximum pitch reference signal from the second pitch reference signal and a saturation pitch reference signal. The method further comprises communicating the maximum pitch reference signal to control a pitch of the one or more rotor blades.

公开(公告)号：US11215163B2

公开(公告)日：2022-01-04

申请号：US16614839

申请日：2018-05-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Jesper Sandberg Thomsen ,  Poul Brandt Christensen

IPC: F03D7/02 ,  F03D9/25 ,  F03D13/35 ,  F03D7/04

Abstract: The present invention relates to control of a wind turbine where nacelle vibration is reduced by use of blade pitching or generator torque modulation. The nacelle vibrations are reduced based on a position signal of the nacelle. An actuator signal is determined based on the position signal and applied to the actuator capable of reducing nacelle vibration. The actuator signal is gain adjusted based on a separation between the rotor frequency and tower vibration frequency.

公开(公告)号：US10655606B2

公开(公告)日：2020-05-19

申请号：US15579097

申请日：2016-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Dan Hilton

IPC: F03D17/00 ,  G10K13/00 ,  G01L5/00 ,  G01K13/08 ,  G01K13/00

Abstract: A sensor system for a wind turbine, comprising: a blade load sensor; a blade temperature sensor configured to provide a temperature measurement of an associated blade; a load calculation module configured to output a temperature-corrected blade load value; and a processing unit interfaced with the temperature sensor. The processing unit includes a temperature estimator configured to determine an estimated temperature of the wind turbine blade based on at least one wind turbine parameter; and a comparator configured to generate a fault signal based on a comparison between the blade temperature measurement and the estimated blade temperature. The invention also resides in a corresponding method.

公开(公告)号：US10364798B2

公开(公告)日：2019-07-30

申请号：US15518992

申请日：2015-10-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Martin Ansbjerg Kjær ,  Fabio Caponetti ,  Ian Couchman ,  Jesper Sandberg Thomsen ,  Thomas Krüger ,  Jorge Martinez Garcia

IPC: F03D7/02 ,  F03D7/04 ,  H02K7/18 ,  H02P9/04

Abstract: The invention relates to a method for wind turbine generators for reducing electrical disturbances in the form of power variations which are caused by damping controllers arranged the compensate structural oscillations by inducing shaft torque variations. The shaft torque variations are generated by imposing corresponding variations in a generator set-point, e.g. a power or torque set-point. Variations in the generator set-point cause undesired variations in the power injected to the grid by one or more wind turbine generators. According to an embodiment of the invention the electrical disturbances may be reduced by limiting a damping controller's control action. The amount of limitation or restriction of the damping controller may be determined on basis on electrical disturbance information determined from power measured e.g. at a location on the grid.

公开(公告)号：US10364797B2

公开(公告)日：2019-07-30

申请号：US15547199

申请日：2016-01-27

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Jesper Sandberg Thomsen ,  Jacob Deleuran Grunnet

IPC: F03D7/02 ,  F03D7/04 ,  F03D9/25

Abstract: The invention relates to a method for controlling a wind turbine in partial and full load. In order to avoid disadvantages of switching between partial and full load controllers, the wind turbine control system is configured so that both the partial and full load controller provides control action during partial and full load. For that purpose, the partial and full load controllers are configured with variable gains, wherein gain scheduling is performed so that the gain of partial load controller is larger than the gain of the full load controller during partial load and vice verso so that the gain of the full load controller is larger than the gain of the partial load controller during full load.

公开(公告)号：US10344740B2

公开(公告)日：2019-07-09

申请号：US15269839

申请日：2016-09-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Per Brath ,  Keld Hammerum ,  Johnny Nielsen

IPC: F03D3/04 ,  F03D7/04 ,  F03G7/00 ,  F03D17/00 ,  F03D7/02 ,  G05B15/02

Abstract: A method of detecting a fault mode of a sensor is provided. The sensor may be, for example, a bending moment sensor and may sense a bending moment of a blade on a wind turbine generator (WTG). The method includes comparing data output by a first sensor with reference data indicating what is expected to be output by the first sensor to produce a first comparison result and comparing data output by the first sensor with data output by a second sensor to produce a second comparison result. A determination of whether the first sensor has entered a fault mode is made based at least in part on the first and second comparison results.

公开(公告)号：US20190078555A1

公开(公告)日：2019-03-14

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).

公开(公告)号：US12006914B2

公开(公告)日：2024-06-11

申请号：US17623078

申请日：2020-06-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  James Alexander Nichols ,  Benjamin Rowlinson

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/028 ,  F05B2270/1033 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/331

Abstract: There is provided a method of controlling power output of a wind turbine at below-rated wind speed, the method comprising: determining an indication of blade torsion of one or more rotor blades of the wind turbine in dependence on wind speed and/or rotor speed; determining a torsion-corrected blade pitch based on the indication of blade torsion; and using the torsion-corrected blade pitch to control pitch the one or more rotor blades.

公开(公告)号：US11913428B2

公开(公告)日：2024-02-27

申请号：US17272455

申请日：2019-08-30

Applicant: Vestas Wind Systems A/S

Inventor： Fabio Caponetti ,  Cliff Zimsen

IPC: F03D1/06

CPC classification number: F03D1/0675 ,  F03D1/0658 ,  F05B2230/20 ,  F05B2240/211 ,  F05B2280/6013

Abstract: A plurality of wind turbine blades or blade portions have substantially the same size and outer geometrical shape, and corresponding plies of the blades or blade portions having the same position within the respective wind turbine blades or blade portions have different fibre orientation angles relative to a pitch axis of the respective wind turbine blade or blade portion. By changing the fibre orientation angles of the corresponding plies a bend-to-twist coupling of the blade or blade portions may be varied amongst the plurality of blades or blade portions. The blades may then be tailored according to their siting within or on a wind turbine park. A common mould shape may be used across the plurality of wind turbine blades or blade portions, together with a more streamlined blade design process.

公开(公告)号：US11885303B2

公开(公告)日：2024-01-30

申请号：US17793602

申请日：2021-01-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Andre Brandao Martins

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F05B2270/327

Abstract: A method of operating a wind turbine generator comprising a plurality of blades, the method comprising iterating the following steps: comparing an indicated rotor speed with a rotor speed target to determine a rotor speed error; generating a modified rotor speed error by applying a control factor to the rotor speed error; controlling the pitch angle of the blades via a pitch control system in accordance with the modified speed error; and altering the control factor in dependence on a size of the indicated rotor speed.