Patents Assigned to Vestas Wind Systems A/S
  • Patent number: 11078884
    Abstract: A wind turbine includes a wind direction sensor, a yawing system, and a control system for yawing the wind turbine rotor relative to the wind. The control system measures a wind direction parameter by the wind direction sensor Over time a group of data sets is obtained and a wind direction offset is determined from the group of data sets which is used to adjust the wind direction parameter. The adjusted wind direction parameter is then used in the controlling of the wind turbine.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: August 3, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Johnny Nielsen
  • Patent number: 11072129
    Abstract: A method and apparatus for assembling a wind turbine blade (10) including first and second outer shell portions (16, 18) and an internal web (12) are provided. An adhesive material (42) is applied to a top end (30) of the internal web (12) as well as the edges (62, 64) of the first outer shell portion (16) for connection to the second outer shell portion (18). Localized heat energy is applied to pre-cure the adhesive material (42) at the top end (30) of the internal web (12) before applying heat energy to fully cure all of the adhesive material (42) in the wind turbine blade (10). The pre-curing is performed by a removable localized heater device (72), and it assures that the integrity of the bond between the internal web (12) and the second outer shell portion (18) is maintained during the full curing of the blade (10), when temporary thermal deformation of the outer shell (14) sometimes occurs.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: July 27, 2021
    Assignee: Vestas Wind Systems A/S
    Inventors: Andrew Hedges, Arne Haahr
  • Publication number: 20210207574
    Abstract: Wind turbine pitch actuator mounting structure A mounting structure is described for attaching a pitch actuator to a hub of a wind turbine. The mounting structure has one or more legs each having a proximal end and a distal end, and a flexible intermediate portion between the proximal and distal ends. The mounting structure further comprises an actuator attachment portion for attaching to a wind turbine blade pitch actuator. The actuator attachment portion is arranged at the distal end(s) of the one or more legs. The proximal end(s) of the one or more legs are configured for attachment to a wind turbine hub. The flexible intermediate portion(s) of the one or more legs are configured to flex in use to absorb loads acting on the pitch actuator. The mounting structure therefore allows the pitch actuator to pivot in a first plane by virtue of the flexible legs.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 8, 2021
    Applicant: Vestas Wind Systems A/S
    Inventors: Simon Kabus, Jacob Hviid Nielsen, Jesper Lykkegaard Neubauer, Erik Garde, Lasse Køgs Andersen, Frank Møller Hansen
  • Patent number: 11053915
    Abstract: A method, controller, wind turbine, and computer program product are disclosed for processing and analyzing wind turbine operational data in a distributed data analysis system. An example method generally includes obtaining, at a first data analysis system, operational data from a plurality of wind turbines in a first wind power plant, determining adjustments to wind turbine operational parameters based on the operational data, pushing the adjustments to the first wind power plant, transmitting the operational data to a second data analysis system not located at the first wind power plant, and transmitting the operational data from the first wind power plant and at least a second wind power plant to a third data analysis system, wherein the third data analysis system comprises a global data analysis system.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: July 6, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Anders Rhod Gregersen, Jan Krogh Jensen, Mehran Nourbakhsh, Morten Tim Thorsen, Martin Qvist
  • Patent number: 11053918
    Abstract: A wind turbine control unit comprising a control module configured to control an actuator system by outputting a first control signal, wherein the first control signal includes a current control sample value and a predicted control trajectory; the control unit further comprising an upsampling module configured to receive the first control signal from the control module, and to output a second control signal for controlling the actuator system, the second control signal having a higher frequency that the first control signal. The upsampling module calculates the second control signal in dependence on the current control sample value and the predicted control trajectory. The embodiments provide a more accurately reproduced control signal at a higher frequency that is suitable for onward processing which does not suffer from the problems of aliasing and delay that exist with conventional upsampling techniques.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: July 6, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Tobias Gybel Hovgaard, Keld Hammerum, Kasper Zinck
  • Patent number: 11053917
    Abstract: A method and control arrangement are disclosed for controlling power output of a wind power plant (WPP) including a plurality of wind turbine generators (WTGs). The method includes determining that overboosting is required for the WPP to meet a power demand at the WPP, and determining, for at least a first WTG of the plurality of WTGs, a corresponding amount of overboost capacity. The method further includes generating, based on the determined amount of overboost capacity, control signals causing the first WTG to increase its power output through overboosting to thereby fulfill at least a portion of the power demand.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 6, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Kouroush Nayebi, Mu Wei, Dumitru-Mihai Valcan, Jesper Sandberg Thomsen
  • Patent number: 11047364
    Abstract: A method of identifying a fault in a system of gears in a wind turbine is provided. The method determines a first centre harmonic frequency amplitude according to vibrations of the system of gears and determines a plurality of sideband amplitudes of the first centre harmonic frequency amplitude. Further, the method calculates an average sideband amplitude from the plurality of sideband amplitudes and determines a value indicative of damage incurred by the system of gears based upon the first centre harmonic frequency amplitude and the average sideband amplitude. The centre harmonic frequencies may be harmonic tooth mesh frequencies and the value indicative of damage may be a ratio of the centre harmonic frequency amplitude and a difference between the centre harmonic frequency amplitude and the associated average sideband amplitude or vice versa. The method may analyse the value of any ratio obtained and use the ratio values to identify, and monitor the progress of, a fault.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: June 29, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Pattabiraman Trichy Ramakrishnan, Mallikarjun Narayanpur
  • Patent number: 11041477
    Abstract: A method of making an elongate reinforcing structure, such as a shear web, for a wind turbine blade is described. The reinforcing structure comprises a longitudinally-extending web and a longitudinally-extending flange. The flange extends along a longitudinal edge of the web and is arranged transversely to the web. The method involves providing a flange structure comprising a flange portion, and a projecting portion that extends along the length of the flange portion and projects transversely from a surface of the flange portion. The projecting portion is bonded between laminate layers of the web. The flange structure is preferably a pultruded component having a T-shaped cross-section. The method allows a simple, inexpensive and reconfigurable mould tool to be used. In preferred embodiments the mould tool has a flat surface without sidewalls.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 22, 2021
    Assignee: Vestas Wind Systems A/S
    Inventors: Steve Wardropper, Jonathan Smith, Andrew Hedges, Stephen Randall
  • Patent number: 11041480
    Abstract: The invention relates to a wind turbine system comprising a support structure with a plurality of wind turbine modules mounted to the support structure. A control system is arranged to enter a service mode wherein service can be performed in the wind turbine system by applying a first control command to a first subset of wind turbine modules for terminating power production. A second control command is applied to a second subset of wind turbine modules for bringing the second subset of wind turbine modules into an damping mode where each of the wind turbine modules of the second subset is operated and/or positioned to damp vibrations, actively and/or passively, of at least one wind turbine module of the first subset of wind turbine modules.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 22, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Erik Carl Lehnskov Miranda, Claus Thyge Pedersen, Jacob Brøchner
  • Publication number: 20210180566
    Abstract: A method for determining a yaw position offset of a wind turbine is provided. A neighbouring wind turbine of the wind farm is identified, said neighbouring wind turbine being arranged in the vicinity of the wind turbine. Produced power data and/or wind speed data from the wind turbine and from the neighbouring wind turbine, is obtained during a period of time, and a yaw position offset of the wind turbine is derived, based on the obtained produced power data and/or wind speed data, and based on the geographical positions of the wind turbine and the neighbouring wind turbine. A local maximum and a local minimum being separated by an angular difference in yaw position being substantially equal to 180°.
    Type: Application
    Filed: March 1, 2017
    Publication date: June 17, 2021
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventor: Brian Melgaard CHRISTENSEN
  • Patent number: 11038400
    Abstract: A method of controlling a wind turbine is provided. The method comprises providing a primary power reference signal and a secondary power reference signal. The primary power reference signal is limited according to a primary signal limit. The secondary power reference signal is limited according to a secondary signal limit. The primary power reference signal and the secondary power reference signal are combined to provide a combined power reference signal, which is provided to a power or torque control system of the wind turbine.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 15, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Poul Brandt Christensen, Jesper Sandberg Thomsen, Gert Karmisholt Andersen
  • Patent number: 11028833
    Abstract: A rotor lock system (20) for securing a main shaft assembly of a wind turbine (2) in a substantially stationary position, the main shaft assembly comprising a main rotor shaft (16) supported by a base frame (14), and the rotor lock system comprising: a locking disk (22), associated with the main rotor shaft (16), and provided with a plurality of locking apertures (26); and a locking unit (24) comprising a first end (28) arranged to engage with the locking disk (22), and a second end supported by a mounting feature (38) associated with the base frame (14), wherein the locking unit (24) is configured to be adjustable relative to the mounting feature (38) so that the first end (28) moves linearly with respect to the mounting feature.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 8, 2021
    Assignee: Vestas Wind Systems A/S
    Inventor: Erik Markussen
  • Patent number: 11028825
    Abstract: A modular wind turbine blade is described. The modular wind turbine blade comprises first and second blade modules having spar caps embedded within their outer shells. The spar caps taper in thickness resulting in tapered recesses being defined in the outer shells. The tapered recesses in the first and second blade modules are aligned when the modules are placed end-to-end to form a continuous double-tapered channel. A connecting member having a double-tapered structure is bonded in the channel to connect the modules together. The invention also provides a mould for making the blade modules in which the mould surface includes a protruding elongate feature having a tapered portion configured to form the recesses in the outer shells. During layup and moulding of the outer shells, spar caps are supported on top of the tapered portion of the elongate feature.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 8, 2021
    Assignee: Vestas Wind Systems A/S
    Inventor: Robert Hunter
  • Patent number: 11022092
    Abstract: A method for mounting a rotor to a drive shaft of a wind turbine, the method comprising placing a hub on a surface, attaching a first, a second, and a third rotor blade to the hub to thereby make a rotor in situ. To protect the blades and to avoid fixed lifting lugs on the rotor, the method includes the step of wrapping a sling about each of the blades, attaching each sling to a fitting, lifting each fitting to thereby raise the rotor from the surface, and attaching the rotor to the drive shaft while the position and orientation of the rotor is controlled by the slings.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 1, 2021
    Assignee: Vestas Wind Systems A/S
    Inventor: Gunnar K. Storgaard Pedersen
  • Patent number: 11025064
    Abstract: A wind power plant system comprising: a plurality of wind turbine generators each having a corresponding generator controller, and a power plant controller for controlling the power generated by the wind power plant system; wherein at least some of the plurality of generator controllers are each configured to: generate a model that indicates the thermal capacity of one or more components of the wind turbine generator, determine power capacity data from the model, said data relating to: at least one reactive power supply level and a corresponding time limit for which that reactive power supply level may be maintained, and transmit to the power plant controller the determined power capacity data, wherein the power plant controller is operable to receive the power capacity data from the plurality of generator controllers and to transmit respective power references to the plurality of generator controllers to control the power generated by the wind power plant system.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: June 1, 2021
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Ciprian Biris, Manoj Gupta, Henrik Møller, Kouroush Nayebi, Janakiraman Sivasankaran, Mu Wei, Hans Kristian Bjørn
  • Patent number: 11022093
    Abstract: A wind turbine rotor blade includes an elongate body having a root end configured to be coupled to a rotor hub of a wind turbine. The rotor blade further includes a connection joint at the root end for connecting the rotor blade to the rotor hub. The connection joint includes a plurality of connecting elements integrated into the root end of the rotor blade and including an eye that defines a bore through the root end of the rotor blade. The connecting elements may be formed from folded fiber rovings wherein the fold forms the eye. A method of making a rotor blade having the connecting element integrated therein, and a method of making the connecting elements are also disclosed.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: June 1, 2021
    Assignee: Vestas Wind Systems A/S
    Inventor: Anton Bech
  • Patent number: 11015579
    Abstract: A transportation system (300) for, and a method (1104, 1106, 1108) of loading for transportation of, a segment (330) of a wind turbine tower are disclosed. The system has a transportation platform (304), the transportation platform having a centreline (320), and a segment support (306, 310) mountable on the transportation platform. The segment support is configured to permit tilting of a supported segment with respect to a pivot point (308) of the support. The segment support is further configured to receive a segment such that the centre of gravity (342) of the segment is offset transversely from: the support pivot point; and from the transport platform centreline. The segment support is also configured to, having received the segment, permit tilting of the segment with respect to the support pivot point to a rest position, and in the rest position the centre of gravity of the segment is alignable vertically with the transport platform centreline.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 25, 2021
    Assignee: Vestas Wind Systems A/S
    Inventors: Shinto Mathew, Michael Christensen, Joris Kofman
  • Patent number: 11014202
    Abstract: An applicator tool (40) for repairing damage (26) to a wind turbine blade (20) includes a spatula (42) including a flexible extrusion plate (44) and one or more spacers (60, 106) positioned proximate an inner surface (58) of the extrusion plate (44). The one or more spacers (60, 106) are configured to define a gap between an outer surface (34) of the wind turbine blade (20) and the inner surface (58) of the extrusion plate (44). A feed tube (86) is provided for supplying a coating material to the spatula (42), wherein the spatula (42) is configured to shape the coating material into a coating (30) over a damaged area (26) of the wind turbine blade (20).
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 25, 2021
    Assignee: Vestas Wind Systems A/S
    Inventors: Aksel Petersen, Claus Engholm Nielsen, Lean Frandsen, Anders Tuxen, Ivar J. B. K. Jensen
  • Patent number: 11015582
    Abstract: A wind turbine blade assembly is described. The wind turbine blade assembly comprises: first and second blade sections connected together, each blade section having a shell defining an aerodynamic profile and each section comprising lightning protection components; a substantially enclosed interior region defined in part by the shell of the first blade section and in part by the shell of the second blade section; a first connector located in the interior region, the first connector being attached to the first blade section and electrically connected to the lightning protection components of the first blade section, the first connector defining a contact surface; a second connector located in the interior region, the second connector being attached to the second blade section and electrically connected to the lightning protection components of the second blade section, the second connector defining a contact surface opposed to and in contact with the contact surface of the first connector.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 25, 2021
    Assignee: Vestas Wind Systems A/S
    Inventors: Leon Barton, Toby Collard
  • Patent number: 11015574
    Abstract: A method of controlling an airborne object (2), such as a kite or a glider, is disclosed. The airborne object (2) may be an airborne energy generating system. The airborne object (2) is coupled to a part of a wind turbine (1), such as a nacelle (4), a tower (3) or a foundation, via a cable (7). At least one parameter related to movements (8) of the tower (3) of the wind turbine (1) is measured, and a cable force (9) of the cable (7) acting on the wind turbine (1) is adjusted, based on the at least one measured parameter. Thereby the tower movements (8) can be counteracted and fatigue can be reduced.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: May 25, 2021
    Assignee: Vestas Wind Systems A/S
    Inventors: Thomas S. Bjertrup Nielsen, Torben Ladegaard Baun