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公开(公告)号：US20230287696A1
公开(公告)日：2023-09-14
申请号：US18040889
申请日：2021-08-14
Applicant: Vestas Wind Systems A/S
Inventor： Anders Skafte
CPC classification number: E04G23/0218 , F03D13/20
Abstract: An aspect of the invention relates to a method of reinforcing a tubular wind turbine structure using a radially adjustable ring stiffener. The ring stiffener comprises a pair of adjacent ring segments coupled together by a coupling means configured to permit radial adjustment of the ring stiffener by varying an intersegmental separation between adjacent ends of those ring segments. The method comprises: positioning the ring stiffener at a reinforcement position within the tubular wind turbine structure; and adjusting the intersegmental separation between the pair of adjacent ring segments to increase the radius of the ring stiffener; and thereby to engage an inner surface of the tubular wind turbine structure with a radial force that holds the ring stiffener at the reinforcement position by means of friction between the ring stiffener and the tubular wind turbine structure.
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公开(公告)号：US11754043B2
公开(公告)日：2023-09-12
申请号：US17056395
申请日：2019-05-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Keld Hammerum , Jesper Sandberg Thomsen
CPC classification number: F03D7/0296 , F03D7/0224 , F03D7/042 , F05B2240/21 , F05B2270/328 , F05B2270/334 , F05B2270/404
Abstract: Controlling a wind turbine by obtaining a movement signal indicative of a vibrational movement of a wind turbine tower is described. An actuator signal is determined based on the movement signal, the actuator signal being determined to produce a desired force to counteract the vibrational movement of the tower. A pitch reference offset signal for each one of a plurality of pitch-adjustable rotor blades is determined based on the actuator signal. An integration is then applied to the pitch reference offset signals to determine modified pitch reference offset signals based on the integrated pitch reference offset signals. A pitch signal for each of the blades is determined based on the modified pitch reference offset signals, the pitch signals being arranged to adjust the blades to provide the force that counteracts the vibrational movement of the tower.
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公开(公告)号：US11732691B2
公开(公告)日：2023-08-22
申请号：US17292820
申请日：2019-11-13
Applicant: Vestas Wind Systems A/S
Inventor： Erik Sloth
IPC: F03D7/02 , G10K11/178
CPC classification number: F03D7/0296 , G10K11/17873 , F05B2260/962 , F05B2270/32 , F05B2270/327 , F05B2270/335 , G10K2210/121
Abstract: A method of masking wind turbine noise from a wind turbine. Masking noise is generated to produce resultant noise with a modulation depth which is less than a modulation depth of the wind turbine noise and an average level which is greater than an average level of the wind turbine noise. The masking noise is either un-modulated masking noise with a substantially constant level, or amplitude-modulated masking noise which is phase-shifted relative to the wind turbine noise and has a modulation depth which is less than the modulation depth of the wind turbine noise.
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公开(公告)号：US11728650B2
公开(公告)日：2023-08-15
申请号：US17372144
申请日：2021-07-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： John Godsk Nielsen , Torben Møller Hansen
CPC classification number: H02J3/18 , F03D9/255 , H02K7/1838 , H02M7/44 , H02P9/02
Abstract: The invention relates to a method for operating a power system of a wind turbine. The power system comprises first and second parallel connected DC-to-AC converters and at least one transformer, where each transformer comprises a primary section connected to a power line, and where the at least one transformer comprises first and second secondary sections connected to outputs of the respective first and second DC-to-AC converters. The method comprises providing a reactive correction reference, changing first and second reactive powers generated by the respective first and second DC-to-AC converters according to the reactive correction reference, so that one of the first and second reactive powers is increased while the other is decreased with amounts corresponding to the reactive correction reference so that the first and second reactive powers are unequal.
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公开(公告)号：US11725634B2
公开(公告)日：2023-08-15
申请号：US17298757
申请日：2019-12-05
Applicant: Vestas Wind Systems A/S
Inventor： Thor Thiim Hansen , Christian Fuglsbjerg , Slawomir Michaluk , Jeppe Søe
CPC classification number: F03D80/85 , F03D13/10 , F03D13/25 , F03D9/257 , F05B2230/60 , F05B2240/85
Abstract: A transition piece (140) for a wind turbine tower (110) is provided, that is configured to be installed on a tower foundation (111) and to carry a tower piece (113). It comprises a high voltage joint (10) with grid input and output terminals (11, 12) and WTG connecting input and output terminals (14, 13). The grid input terminal (11) is configured for receiving and connecting to an array cable (21) from a power grid (20). The WTG connecting output terminal (13) is operatively connected to the grid input terminal (11) for receiving and connecting to an input cable (23) leading to a switchgear (30). The WTG connecting input terminal (14) is configured for receiving and connecting to an output cable (24) from the switchgear (30). The grid output terminal (12) is operatively connected to the WTG connecting input terminal (14) for receiving and connecting to an array cable (22) leading to the power grid (20). Further, installation, testing, connecting and maintenance methods taking advantage of the high voltage joint (10) are provided.
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Patent Agency Ranking
公开(公告)号：US11725627B2
公开(公告)日：2023-08-15
申请号：US17413682
申请日：2019-12-17
Applicant: Vestas Wind Systems A/S
Inventor： Mranal Gupta , Erik Sloth
CPC classification number: F03D7/0276 , F03D7/0296 , F03D15/00 , F05B2260/4031 , F05B2260/96 , F05B2260/966 , F05B2270/334 , F05B2270/342
Abstract: A detuner system for a wind turbine includes a drive train component having a natural frequency. The drive train component is configured to rotate about an axis of rotation at a range of different speeds. The detuner system includes a controller for selectively interacting with the drive train component and cause a step change in the natural frequency of the drive train component at a first threshold of the rotational speed range, and cause a step change in the natural frequency of the drive train component at a second threshold of the rotational speed range different to the first threshold.
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公开(公告)号：US20230243334A1
公开(公告)日：2023-08-03
申请号：US18009942
申请日：2021-06-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Julio Xavier Vianna NETO , Ander Yde WOLLESEN , Søren DALSGAARD
CPC classification number: F03D7/0204 , F03D1/02 , F03D17/00 , F05B2270/329 , F05B2270/32
Abstract: The present invention relates to a multirotor wind turbine comprising at least two rotor nacelle assemblies mounted to a support arrangement via respective yawing systems, and a toe angle control system for controlling the toe angles of the rotor nacelle assemblies with respect to the support arrangement; wherein the toe angle control system is configured to operate in a first mode in which the rotor nacelle assemblies are held at positive toe angles while the wind turbine is generating power in a main production mode; wherein the toe angle control system is further configured to monitor the operating mode of the wind turbine, and to switch to a second mode in which the yawing systems of the rotor nacelle assemblies are operated to reduce the toe angles of the rotor nacelle assemblies if an operating mode-based trigger condition has been met.
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公开(公告)号：US11713744B2
公开(公告)日：2023-08-01
申请号：US17854038
申请日：2022-06-30
Applicant: Vestas Wind Systems A/S
Inventor： Jonathan Smith , James Smith , Robert Ernst , Mark Folsom
IPC: F03D1/06 , B29K105/08
CPC classification number: F03D1/0658 , B29K2105/0872 , F05B2230/50 , Y02E10/72
Abstract: A composite material blank comprising an elongate blank body extending between a first end face and a second end face; said blank body extending in a longitudinal direction, parallel to a longitudinal axis thereof, and having four peripheral sides; each said first and second end face having edges which define a trapezoid shape; wherein the peripheral sides of said blank body connect the edges of said first end face with the edges of said second end face; and wherein said first trapezoid end face is inverted in relation to said second trapezoid end face. A method of manufacturing a composite blank, and a wind turbine blade root insert which may be formed from a blank.
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89.发明授权公开(公告)号：US11698054B2
公开(公告)日：2023-07-11
申请号：US17011329
申请日：2020-09-03
Applicant: Vestas Wind Systems A/S
Inventor： Kurt Jensen , Henrik Timm Sørensen
CPC classification number: F03D13/40 , B61D47/00 , B65G67/12 , F05B2260/02
Abstract: A tip bolster (32) for supporting a wind turbine blade (40) on a railcar (14) includes a clamp (360) including first and second clamp arms (364, 366) having first and second jaws (384, 386), respectively, and supporting a pliable saddle (394) extending therebetween, the pliable saddle (394) being configured to support a portion of the blade (40) interposed between the first and second clamp arms (364, 366) and to conform to an exterior surface thereof.
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公开(公告)号：US20230208742A1
公开(公告)日：2023-06-29
申请号：US18090129
申请日：2022-12-28
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Tommy Frichot , Fabrice Krøyer-Loudet , Morten Tim Thorsen
Abstract: Testing data transfer at the application layer of a wind power surveillance computer system. One technique includes preparing a test message with a message id, transferring the test message from a first computer entity to a second computer entity, stamping the test message with a time stamp, when transfer is initiated, stamping the test message with a transfer id and a corresponding transfer time stamp, when the test message is received at the second entity, transferring the test message from the second computer entity at the application layer to the first computer entity, stamping the test message with an arrival time stamp, when the test message arrives at the first entity, storing the message id and the transfer id with corresponding time stamp and corresponding transfer time stamp, and the arrival time stamp, and comparing the stored time stamp with the transfer time stamp and with the arrival time stamp.
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