公开(公告)号：US20180355847A1

公开(公告)日：2018-12-13

申请号：US15775351

申请日：2016-11-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Torben Ladegaard BAUN ,  Jesper Lykkegaard NEUBAUER

IPC: F03D7/02 ,  F03D1/02 ,  F03D7/04

CPC classification number: F03D7/0224 ,  F03D1/02 ,  F03D7/0268 ,  F03D7/0296 ,  F03D7/042 ,  F05B2240/221 ,  F05B2260/96 ,  F05B2270/107 ,  F05B2270/111 ,  F05B2270/328 ,  Y02E10/723

Abstract: A wind turbine system comprising a plurality of wind turbine modules mounted to a support structure, wherein each of the wind turbine modules comprises a rotor including one or more variable-pitch blades, each defining a respective blade pitch angle and being controlled by a pitch control system, and a control system operable to control the blade pitch angles of the plurality of blades of the wind turbine modules. The control system is configured to identify the presence of a predetermined stop condition and, in dependence thereon, is operable to control the blade pitch angles of the respective blades to predetermined stop positions that reduce oscillation of the support structure. Aspects of the invention also relate to a method of controlling a wind turbine system, to a controller for implementing the method, and to a computer program product.

公开(公告)号：US20250059948A1

公开(公告)日：2025-02-20

申请号：US18723546

申请日：2022-12-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Niels Henrik PEDERSEN ,  Jens-Kristian Egsgaard LANGKJÆR ,  Julio Xavier Vianna NETO ,  Søren DALSGAARD ,  Jesper Lykkegaard NEUBAUER

IPC: F03D7/02

Abstract: Systems, methods, and computer program products for controlling a yaw system of a wind turbine. The yaw system includes mechanical brakes that provide a first amount of braking torque when closed. The yaw system is configured to transition from a yawing state to a parked by brake state by closing mechanical brakes in a first subset of the mechanical brakes and opening each mechanical brake in a second subset of the mechanical brakes. The second subset provides a second amount of braking torque that is less than the first amount of braking torque. In response to detecting a rotation of the nacelle while in the parked by brake state, the yaw system is configured to transition from the parked by brake state to a parked by motor state in which yaw drives are activated to provide a counter acting torque in opposition to the detected rotation of the nacelle.

公开(公告)号：US20190203692A1

公开(公告)日：2019-07-04

申请号：US16326301

申请日：2017-08-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio CAPONETTI ,  Keld HAMMERUM ,  Jesper Lykkegaard NEUBAUER

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/0264 ,  F03D7/0224 ,  F03D7/0276 ,  F03D7/0296 ,  F03D7/043 ,  F05B2270/309 ,  F05B2270/327 ,  F05B2270/334 ,  Y02E10/723

Abstract: A method is provided for controlling the shutdown of a wind turbine of the type having a rotor, the rotor comprising one or more wind turbine blades. The method comprises dynamically determining a rotor speed reference; obtaining a measure of the rotor speed of the rotor; determining an error between the rotor speed reference and the rotor speed of the rotor; and controlling a pitch of one or more of the wind turbine blades based on the determined error. A corresponding wind turbine controller and a wind turbine including such a controller are also provided.

公开(公告)号：US20230151797A1

公开(公告)日：2023-05-18

申请号：US17920675

申请日：2021-04-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Thorkild Møller BERTELSEN ,  Morten Bagger SØGAARD ,  Jesper Lykkegaard NEUBAUER ,  Tiago Telmo PINTO DE OLIVEIRA ,  Peter FYNBO ,  Martin Møller SØRENSEN ,  Carsten Krogh NIELSEN ,  Asier BERRA ,  Anders Hjarnø JØRGENSEN

IPC: F03D7/02

CPC classification number: F03D7/0204 ,  F05B2260/902 ,  F05B2270/602

Abstract: The invention relates to a method for controlling a wind turbine system, more particular for a controlled sliding strategy to lower loads on the yaw system by controlling mechanical brakes and motor brakes in the yaw drive actuators. When the yaw system being in the non-yawing operational state, and the mechanical brake(s) being in an engaged state, and the yaw controller determines or receives a signal indicative of a yaw moment, and if the signal indicative of a yaw moment is above a signal threshold, then the yaw controller sends a braking signal to the yaw drive actuators to enter the motors into the brake state to apply a braking torque.

公开(公告)号：US20230038784A1

公开(公告)日：2023-02-09

申请号：US17916284

申请日：2021-03-29

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Peter FYNBO ,  Jesper Lykkegaard NEUBAUER ,  Jens-Kristian Egsgaard LANGKJÆR ,  Niels Henrik PEDERSEN

IPC: F03D7/04 ,  F03D7/02

Abstract: Techniques for controlling the yaw of a wind turbine system by controlling a plurality of yaw drive actuators. Based on a requested motor speed reference as an input signal, and a mean motor speed reference as a feedback signal, the method determines a required motor torque reference as an output signal for the plurality of yaw drive actuators. The plurality of yaw drive actuators rotates a nacelle or a structure comprising a plurality of nacelles such that an even load distribution is provided for the plurality of yaw drive actuators.

公开(公告)号：US20230258153A1

公开(公告)日：2023-08-17

申请号：US18011101

申请日：2021-06-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Peter FYNBO ,  Torben Ladegaard BAUN ,  Jesper Lykkegaard NEUBAUER

IPC: F03D7/02 ,  F03D80/80

CPC classification number: F03D7/0204 ,  F03D80/88 ,  F05B2270/329 ,  F05B2270/80

Abstract: A method of yawing a nacelle in a wind turbine having a yawing assembly comprising a drive-ring and a plurality of drives configured to exert a torque during movement along the drive-ring and thereby move the nacelle relative to the tower. The drive-ring is made of drive-ring segments joined in intersections. The method comprises defining a location for each intersection, defining a reference torque exerted by the drives when moving along the drive-ring, defining a reduced torque being lower than the reference torque, determining when a crossing drive moves across the location of an intersection, and to increase the lifetime, exerting the reduced torque by the crossing drive.

公开(公告)号：US20230151796A1

公开(公告)日：2023-05-18

申请号：US17916341

申请日：2021-03-29

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Peter FYNBO ,  Jesper Lykkegaard NEUBAUER ,  Jens-Kristian Egsgaard LANGKJÆR ,  Niels Henrik PEDERSEN

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/0204 ,  F03D7/047 ,  F05B2240/40 ,  F05B2270/1095 ,  F05B2270/111

Abstract: Techniques for controlling the yaw of a wind turbine system by controlling a plurality of yaw drive actuators.
When the yaw drive actuators are applying the same torque to all the motors, this can lead to some motors overspeeding, if the motor is not engaged when the yaw system is activated.
Therefore, if the actual motor speed reference of a yaw drive actuator is higher than a specific motor speed reference, then an output signal to reduce the actual motor speed reference is applied to the yaw drive actuators with an actual motor speed reference higher than the specific motor speed reference.

公开(公告)号：US20200332765A1

公开(公告)日：2020-10-22

申请号：US16956952

申请日：2018-12-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Søren DALSGAARD ,  Jesper Lykkegaard NEUBAUER ,  Kim Hyllimg SØRENSEN ,  Jacob BRØCHNER ,  Erik Carl Lehnskov MIRANDA ,  Peter BØTTCHER ,  Julio Xavier Vianna NETO ,  Torben PETERSEN

IPC: F03D7/02 ,  F03D9/25 ,  F03D13/20 ,  F03D7/04 ,  F03D1/02

Abstract: A method for controlling a multirotor wind turbine is disclosed. A first operational state of each of the energy generating units of the wind turbine is obtained. A difference in thrust acting on at least two of the energy generating units is detected. At least one constraint parameter of the set of operational constraints is adjusted in accordance with prevailing operating conditions and in accordance with the detected difference in thrust, and a new operational state for at least one of the energy generating units is derived, based on the at least one adjusted constraint parameter, the new operational state(s) counteracting the detected difference in thrust. Finally, the wind turbine is controlled in accordance with the new operational states for the energy generating units.