Patents Assigned to Vestas Wind Systems A/S
  • Patent number: 11415110
    Abstract: A wind turbine blade is provided comprising a main blade portion and a light detection and ranging (LIDAR) element. The main blade portion has a shell defining an outer aerodynamic surface of the blade. The LIDAR element is disposed within a volume bounded by the outer aerodynamic surface and comprises at least one LIDAR system configured to transmit light beams away from the blade and to detect reflected light beams incident upon the blade.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: August 16, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Pradeep Bosukonda, Tobias Østergaard Rossel, Johnny Nielsen
  • Patent number: 11415104
    Abstract: A control system and method of control are disclosed. A model predictive control, MPC, unit is configured to determine a control signal for controlling an operation of the wind turbine based at least in part on a cost function comprising a wear cost relating to one or more types of wear of the winding turbine, and a corresponding cost weighting, which defines a relative weighting of the wear cost in the cost function. A weighting determination unit is configured to receive a reference signal comprising a target wear, receive a feedback signal comprising a wear measure of the wind turbine, and determine, based at least in part on a difference between the target wear and the wear measure, a weighting adjustment for at least part of the cost weighting of the cost function. The MPC unit then sets the cost weighting based at least in part on the weighting adjustment.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 16, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Anders Steen Nielsen, Tobias Gybel Hovgaard, Jacob Deleuran Grunnet
  • Patent number: 11415106
    Abstract: A retrofitted wind turbine installation for replacing a prior wind turbine installation includes the foundation of the prior wind turbine installation and a replacement wind turbine supported by the foundation, wherein the tower of the retrofitted wind turbine installation is a cable-stayed tower to reduce the bending loads imposed on the foundation. A method of retrofitting an existing wind turbine installation with a replacement wind turbine includes disassembling at least a portion of the existing wind turbine, assembling a replacement tower to a remaining portion of the existing wind turbine installation, attaching a plurality of stay cables between the tower of the retrofitted wind turbine installation and stay cable foundations, and attaching the replacement energy generating unit to the replacement tower.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: August 16, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Torben Ladegaard Baun, Jesper Lykkegaard Neubauer, Tue Hald
  • Patent number: 11415103
    Abstract: The present invention relates to a power system having a plurality wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators, where each of the plurality of wind turbine generator being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller; a first subset of wind turbine generators operating at an active power output unrestricted of the active power set point; and a second subset of wind turbine generators operating according to an active power set point; and wherein the wind power plant controller communicates the active power set point, in accordance with the active power output of the first subset of the plurality of wind turbines generators, so as to reduce active power fluctuation of the aggregated active power output of the first and second subset of the plu
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: August 16, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Germán Claudio Tarnowski
  • Patent number: 11408392
    Abstract: A composite material blank (190) comprising an elongate blank body (300) extending between a first end face (312a) and a second end face (312b); said blank body (300) extending in a longitudinal direction, parallel to a longitudinal axis thereof, and having four peripheral sides (341, 342, 343, 344); each said first and second end face (312a, 312b) having edges (361a-364a; 361b-364b) which define a trapezoid shape; wherein the peripheral sides (341, 342, 343, 344) of said blank body (190) connect the edges (361a-364a) of said first end face (312a) with the edges (361b-364b) of said second end face (312b); and wherein said first trapezoid end face (312a) is inverted in relation to said second trapezoid end face (312b). A method of manufacturing a composite blank (190), and a wind turbine blade root insert (105) which may be formed from a blank (190).
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 9, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Jonathan Smith, James Smith, Robert Ernst, Mark Folsom
  • Patent number: 11408398
    Abstract: The wind turbine comprises at least one controller arranged to control a function of the wind turbine, and a data storage unit arranged to store controller specific data for the at least one controller, where the data storage unit is associated with the at least one controller to enable communication of the controller specific data between the data storage unit and the at least one controller. The method comprises detecting a connection between a programming enabling key and a connection interface dependent on a presence of the programming enabling key in proximity of the connection interface, initiating a programming mode wherein a control unit is enabled to receive controller specific data or wind turbine specific data from which the controller specific data can be determined, and obtaining the controller specific data or the wind turbine specific data via a manual action or via a trusted data source.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 9, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Peter Delgado Grove, David Steele
  • Patent number: 11411519
    Abstract: The present invention relates to a method of controlling a doubly fed induction generator wind turbine converter system in case of a sub-synchronous resonance event, the method comprising the steps of detecting the sub-synchronous resonance event, and switching from a first control mode to a second control mode in response to detecting the predetermined event, wherein the second control mode comprises the step of setting at least one rotor current controller parameter on the basis of a generator speed of the doubly fed induction generator. The predetermined event may also be a fault ride through event. The present invention further relates to a doubly fed induction generator wind turbine converter system being capable of handling such events.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 9, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Poul Møhl Dyrlund, Gert Karmisholt Andersen, Torsten Lund, Hamid Soltani
  • Patent number: 11411403
    Abstract: Aspects of the present invention relate to a method for controlling one or more wind turbine generators. The method comprises: monitoring an electrical parameter of a power network to which the wind turbine generators are connected with respect to a deadband for the electrical parameter; and determining that the monitored electrical parameter is deviating outside of the deadband. In response to determining that the electrical parameter is deviating outside of the deadband, the method comprises: quantifying a severity of the deviation; and selectively implementing a parameter control mode when the quantified severity of the deviation is at or above a threshold level. In the parameter control mode, one or more power set points are determined based on the value of the electrical parameter and are dispatched to control the wind turbine generators.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: August 9, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Kouroush Nayebi, Søren Kappelgaard, Thair Mahmoud
  • Patent number: 11401916
    Abstract: A method 300 of controlling a wind turbine generator is disclosed. The method comprises operating 302 the wind turbine in accordance with a power curve having a knee region and monitoring 304 a temperature of at least one thermal hotspot of the wind turbine generator. The method further comprises initiating 306 a power boost to temporarily increase an active power generated by the wind turbine generator above a rated power when the wind turbine generator enters the knee region of the power curve and controlling 312 at least one of a magnitude and a duration of the power boost in dependence on the temperature of the at least one thermal hotspot of the wind turbine generator.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: August 2, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Tusitha Abeyasekera, Sascha Dominic Erbslöh, Alex Pericleous
  • Patent number: 11404957
    Abstract: A mounting device shaped for contact with at least a part of a circumference formed by a configuration of three separately electric isolated one-phase power cables and at least one electrically isolated one-phase common mode return cable positioned together so that electrically conductive portions of the respective cables form a symmetrical cross sectional pattern, wherein the mounting device is arranged for fixation of all of said three power cables and the at least one common mode return cable to an associated structure. This mounting device allows effective fixation of power cables in electric power systems involving a three-phase PWM converter, where common mode return cables are necessary, e.g. in a wind turbine. The mounting device allows an effective practical handling and freedom to choose cables with custom fit cross sectional areas as well as compliance with the required maximum temperatures.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 2, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Luis Miguel Calhau Gonçalves, Kenneth G. Hansen
  • Patent number: 11401917
    Abstract: The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable. The measured data are used in the power plant controller for determining setpoints for controlling the wind turbine generators' production of active and reactive power. In response to detection of a communication fault a new setpoint is determined independently of new measured grid data by reconfiguring parts of the power plant controller.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: August 2, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Jorge Martinez Garcia, Rasmus Lærke, Henrik Møller, Kouroush Nayebi, Rubin Panni, Chun Meng Heng
  • Patent number: 11396862
    Abstract: The present invention relates to control of a wind turbine where nacelle vibration is reduced by use of blade pitching. The nacelle vibrations are reduced based on a position signal of the nacelle. A pitch signal is determined based on the position signal and applied to the pitch-adjustable rotor blades in order to reduce nacelle vibration.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: July 26, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Fabio Caponetti, Jesper Sandberg Thomsen
  • Patent number: 11396861
    Abstract: A rotor restraining apparatus (200) and methods for a wind turbine (1). The rotor restraining apparatus has a locking element (204) associated with a rotor (8, 203) of the wind turbine, a rotational axis of said rotor defining an axial direction, the locking element being at least part-circular in form. The locking element comprises a plurality of engagement formations (205) disposed on a periphery thereof. The apparatus also has a restraining member (206), comprising a plurality of engagement formations (207). The restraining member is movable substantially along said axial direction between: (a) a non-restraining position; and (b) a restraining position in which the restraining member engagement formations are able to engage the locking element engagement formations. At least a portion of the restraining member has an arcuate form that substantially matches the curvature of the locking element.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 26, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Anders Haslund Liingaard, Claus Hald Therkildsen
  • Patent number: 11396154
    Abstract: A method of making a modular wind turbine blade is described. The modular blade comprises first and second blade modules connected together by a scarf joint between tapered spar caps of the respective blade modules. According to the method, first and second blade modules are laid up in the same mould assembly. A separating layer is arranged between the layups of the first and second module in a joint region of the mould. The separating layer has a thickness corresponding to a required bond thickness in the scarf joint when the modules are bonded together.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 26, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Leon Barton, Robert Hunter, Christopher Owens
  • Patent number: 11396863
    Abstract: A method of monitoring wind turbine emission of tonal noise is provided. The method comprises receiving a noise notification as a message from a third party, determining a time associated with the message, and acquiring sensor data from a sensor, with the sensor data being indicative of an operating parameter of a wind turbine. The method further comprises correlating the noise notification with the acquired sensor data based on the time associated with the message.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: July 26, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Mranal Gupta
  • Patent number: 11396865
    Abstract: The present invention relates to wind turbine generator (WTG) with a ball bearing (31) supporting a rotating shaft. A suction provider (35), e.g. a rotating disc, is provided next to the ball bearing. An opposite grease reservoir (41) supplies the ball bearing with grease during rotational operation, the grease reservoir further having a shape so that a point (43) of the at least one grease reservoir being closest to the rotating shaft and a grease inlet of the ball bearing are adjoining. The suction provider creates a pressure which is slightly lower than atmospheric pressure, thereby creating a suction of grease (47) through the ball bearing from the grease reservoir, which aids in distributing the grease in the ball bearing. The invention provides an improved ball bearing having an extended lifetime of up to e.g. 7-10 years.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 26, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Kim Sveinsson Sørensen, Flemming Væversted Jørgensen, Olaf Brinckmann
  • Patent number: 11396864
    Abstract: Examples are generally directed to techniques for monitoring and controlling heating elements in wind turbine blades and the wind turbine blades. One example of the present disclosure is a method of monitoring and controlling a condition of a heating element in a wind turbine blade and the wind turbine blade. The method includes measuring a voltage applied to the heating element and measuring the current flowing through the heating element. The method further includes calculating a resistance of the heating element using the measured voltage and the measured current and storing the resistance in a database. The method further includes determining whether an event corresponding to a failure of the wind turbine blade or the heating element in the wind turbine blade has occurred. When the event occurs, control of the heating element is adjusted.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 26, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Stephen Buggy
  • Publication number: 20220228565
    Abstract: A method for erecting a wind turbine tower is disclosed. A tower section (8) comprising a lower flange (9) and an upper flange (10), and a plurality of stud bolts (6) and nuts (7) are provided. The tower section (8) is oriented in an upright position with the lower flange (9) below the upper flange (10), and stud bolts (6) are positioned in bolt holes (12) in the lower flange (9) with nuts (7) arranged on an upper side of the lower flange (9). The tower section (8) is lifted to a mounting position on top of another tower section (13), and a flange combination is formed by aligning the bolt holes (12) formed in the lower flange (9) of the tower section (8) with bolt holes (15) formed in an upper flange (14) of the other tower section (13), while advancing the stud bolts (6) through the bolt holes (12, 15). The invention further provides a socket tool (16) for screwing nuts (7) onto stud bolts (6) in a manner which positions the stud bolts (6) correctly with respect to a flange (9).
    Type: Application
    Filed: May 19, 2020
    Publication date: July 21, 2022
    Applicant: Vestas Wind Systems A/S
    Inventors: Jakob Anders Sørensen, Christine Broe, Rasmus Sanderhoff Johansen
  • Patent number: 11391267
    Abstract: A method of handling a wind turbine component for assembly or maintenance, comprising moving one or more unmanned air vehicles to respective positions proximal to a wind turbine component so that the wind turbine component can be supported by the one or more unmanned air vehicles; and controlling the one or more unmanned air vehicles to lift the wind turbine component and manoeuvre said component with respect to a wind turbine. The invention extends to a system for handling a component of a wind turbine, comprising a plurality of unmanned air vehicles (UAVs); a UAV ground station computer system; and one or more lifting harnesses for carrying by the plurality of unmanned air vehicles.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: July 19, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Gunnar K. Storgaard Pedersen, Christian Skov Frederiksen, Anton Bech, Gerner Larsen, Ivar J. B. K. Jensen, Klaus Lynge Petersen
  • Patent number: 11391263
    Abstract: A wind turbine including yaw control comprising a controller receiving an input signal, and providing an output control signal to a yaw actuator. The input signal to the controller is based on: a first feedback signal that is indicative of the relative wind direction determined with respect to the wind turbine, wherein the first feedback signal is filtered with a first low pass filter; and a second feedback signal that is indicative of the activity of the yaw actuator. The control technique of the invention significantly improves the ability of a yaw system to maintain a zero degree yaw error during steady state wind conditions, or in other words to maintain an accurate heading of the nacelle pointing into the wind, as well as reducing the maximum yaw error experienced during yaw system activation.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: July 19, 2022
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Tobias Gybel Hovgaard, Martin Møller Sørensen