公开(公告)号：US20250163884A1

公开(公告)日：2025-05-22

申请号：US18725669

申请日：2022-12-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： John SCHWENSEN ,  Sara SINISCALCHI MINNA ,  Tobias Gybel HOVGAARD

IPC: F03D7/02

Abstract: The present invention relates to control of a wind turbine where a torque limit is set on a control signal. A current torque value of a rotor of the wind turbine is determined and compared to an upper torque limit value and the control signal is modified if the current torque value is larger than the upper torque limit value. The upper torque limit value is based on a lower envelope signal which tracks the current torque value if the current torque value is lower than or equal to the previous lower envelope value and is set as a rising signal if the current torque value is higher than the previous lower envelope value. The upper torque limit is set to be a first amount higher than the lower envelope signal.

公开(公告)号：US12292027B2

公开(公告)日：2025-05-06

申请号：US18002507

申请日：2021-06-29

Applicant: Vestas Wind Systems A/S

Inventor： Stephen Randall ,  Andrea Attorni ,  Thomas Potentier ,  Francesco Grasso

IPC: F03D1/06

Abstract: A horizontal axis wind turbine comprising a rotor having a plurality of blades, the rotor having a radius of at least 80 meters, the blades comprising: a root end and a tip end; a leading edge and a trailing edge; a shoulder between the root end and the tip end where a chord length defined between the leading edge and the trailing edge is at a maximum; wherein: Solr is at least 0.0140 at 0.7R; Solr is at least 0.0116 at 0.8R; Solr is at least 0.0090 at 0.9R; Solr being the combined radius specific solidity of the blades.

公开(公告)号：US20250137440A1

公开(公告)日：2025-05-01

申请号：US18683990

申请日：2022-08-12

Applicant: Vestas Wind Systems A/S

Inventor： Aksel Petersen ,  Jack Zhen-zhe Chen ,  Balachandra Udayavara ,  Søren Bjørnsgaard Kristensen

IPC: F03D80/50 ,  F03D1/06

Abstract: In a first example there is provided a method of servicing a wind turbine rotor blade. The blade comprises an outer shell defining an interior cavity, and the rotor blade is part of a rotor connected to a wind turbine. The method comprises arranging the rotor such that the 5 blade is in a first orientation, installing a work platform in the interior cavity of the blade when the blade is in the first orientation, and subsequently arranging the blade in a second orientation. The method further comprises using the work platform, when the blade is in the second orientation, to support a technician performing a service operation on the blade.

公开(公告)号：US20250122744A1

公开(公告)日：2025-04-17

申请号：US18567866

申请日：2022-06-24

Applicant: Vestas Wind Systems A/S

Inventor： Jens-Jørgen Hansen ,  Torben Ladegaard Baun ,  jesper Lykkegaard Neubauer ,  Christian Skov

IPC: E04H12/20 ,  F03D13/10 ,  F03D13/20

Abstract: A wind turbine (10) supported by a plurality of cables (20). The wind turbine (10) includes a tower (12). An energy generating unit (14) is disposed on the tower (12) and is configured to produce electrical energy from wind (40). The tower (12) includes an upper section and a lower section. Each of the upper and lower sections includes an inwardly directed flange (82, 90) having a plurality of through-bores (84, 92, 96). An annular member (62, 120) has one or more ears (50, 204) that extend outwardly. Each ear (50, 204) is configured to be coupled to one of the plurality of cables (20). The annular member (62) includes a plurality of bores (68, 72, 104) that align with the through-bores (84, 92, 96) in the inwardly directed flanges (82, 90). The bores (68, 72) each includes a screw thread (100, 102). Threaded fasteners (94) are used to secure the annular member (62, 120) to the tower (12). A method of installing includes tensioning cables (20) after installing the interface module (18, 120) on the tower (12) and before installing the energy generating unit (14).

公开(公告)号：US12272948B1

公开(公告)日：2025-04-08

申请号：US18862937

申请日：2023-05-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mads Rajczyk Skjelmose ,  Ines Pereira Barreira ,  Kouroush Nayebi

IPC: H02J3/00 ,  F03D17/00 ,  G01R21/00 ,  G08B21/18 ,  H02J3/24 ,  H02J3/38

Abstract: Operating a renewable energy power includes receiving a measurement signal indicative of a measured power characteristic of the plant at a point of connection to a power network; controlling the plant 12) according to a normal mode of operation to provide power by determining and dispatching power set points, the power set points being determined by: acquiring samples of the measurement signal at a sample rate; and determining the power set points based on the sampled measurements and a target level for the measured power characteristic; and monitoring the measurement signal to detect an undersampled oscillation of the measured power characteristic in the sampled measurements, and thereby detecting a control fault; and then controlling the plant according to a fault mode of operation.

公开(公告)号：US12264652B2

公开(公告)日：2025-04-01

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：US12261439B1

公开(公告)日：2025-03-25

申请号：US18797430

申请日：2024-08-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lennart Petersen ,  Torsten Lund

IPC: H02J3/24 ,  H02J3/38

Abstract: A method for damping power oscillation in an electric power grid, comprising: performing a procedure for determination of a phase shift between a filtered voltage signal and a filtered frequency signal; based on the performed procedure, determining which one of the filtered voltage signal and filtered frequency signal is leading or lagging in relation to the other one of the filtered voltage signal and filtered frequency signal; based on the determination of which one of the filtered voltage signal and filtered frequency signal is leading or lagging, setting a gain of a power oscillation damping controller to be positive or negative; applying the power oscillation damping controller with the set gain so as to produce an output signal outputted from the power oscillation damping controller; and based on the produced output signal, controlling an injection of electric power to the grid so as to dampen power oscillation in the grid.

公开(公告)号：US12258935B2

公开(公告)日：2025-03-25

申请号：US18282350

申请日：2022-03-18

Applicant: Vestas Wind Systems A/S

Inventor： Thomas S. Bjertrup Nielsen ,  Robert Thomas Rudolf ,  Torben Juul Larsen

IPC: F03D1/06

Abstract: A pitch controlled wind turbine (1) comprising a tower (2), a nacelle (3) mounted on the tower (2), a hub (4) mounted rotatably on the nacelle (3), and at least three wind turbine blades (5) is disclosed. Each wind turbine blade (5) extends between a root end (6) connected to the hub (4), and a tip end (7). The wind turbine (1) further comprises at least three blade connecting members (8), each blade connecting member (8) extending between a connection point (9) on one wind turbine blade (5) and a connection point (9) on a neighbouring wind turbine blade (5). The wind turbine blades (5) each comprises an inboard blade part (5a) comprising the root end (6) and an outboard blade part (5b) comprising the tip end (7), the inboard blade part (5a) and the outboard blade part (5b) being connected to each other at a split position (10). The split position (10) is arranged between the root end (6) and the connection point (9).

公开(公告)号：US20250094160A1

公开(公告)日：2025-03-20

申请号：US18885180

申请日：2024-09-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Leo THESBJERG ,  Kasper ZINCK ,  Vimal Kumar MANI ,  Fathima FERSHANA A

IPC: G06F8/65 ,  G05B19/042

Abstract: Disclosed is a method, performed by an electronic device, for validation of a second version of a software or a second structure model for control of a wind turbine. The method comprises obtaining first load data from simulating a load of the wind turbine using a first structural model and a first version of the software. The method comprises obtaining second load data from simulating the load of the wind turbine using the first structural model and the second version of the software or using the first version of the software and a second structural model. The second version of the software is an update of the first version of the software. The second structural model is an update of the first structural model. The method comprises determining, based on the first load data and the second load data, a statistical parameter.

公开(公告)号：US12247547B2

公开(公告)日：2025-03-11

申请号：US18686367

申请日：2022-08-25

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Goncalo Artur Duarte Pereira ,  Jens Van Schelve ,  Johnny Nielsen

IPC: F03D17/00

Abstract: The invention provides a method of identifying recurrent free-flow wind disturbances associated with a wind turbine. The method comprises monitoring a signal indicative of a parameter associated with operation of the wind turbine, determining an expected signal of the parameter based on the monitored signal, determining a difference between values of the monitored signal and the determined expected signal, and correlating the determined differences with yaw position of a nacelle of the wind turbine. The method includes determining, based on the correlated differences, unexpected values of the parameter for different yaw positions, and identifying, based on a frequency of occurrence of the determined unexpected values, a recurrent free-flow wind disturbance associated with a yaw position of the nacelle.