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公开(公告)号：US10903659B2
公开(公告)日：2021-01-26
申请号：US16621581
申请日：2018-05-16
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Mu Wei , Kouroush Nayebi , Søren Kappelgaard
Abstract: The invention relates to a method for correcting deviations of power produced by a power plant which includes at least one wind turbine generator and possibly other types of power generating units. The power deviations, i.e. deviations from a power reference for the power plant, are determined as energy errors. The invention addresses solutions for determining and compensating the energy errors.
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公开(公告)号：US10895247B2
公开(公告)日：2021-01-19
申请号：US16089069
申请日：2017-03-09
Applicant: Vestas Wind Systems A/S
Inventor： Kristoffer Isbak Thomsen , Anders Haslund Liingaard
IPC: F03D13/20
Abstract: A nacelle of a wind turbine includes a rear frame structure (1), the rear frame structure (1) having a plurality of truss members (2), and a plurality of joints (3), each joint (3) interconnecting ends of at least two truss members (2). Each joint (3) includes a central portion (6) and at least two connecting portions (7) extending away from the central portion (6), each connecting portion (7) being arranged to form an interface towards a truss member (2), and each connecting portion (7) being significantly more flexible than the central portion (6) and significantly more flexible than the truss members (2). The rear frame structure (1) is capable of improved handling of bending moments due to the increased flexibility of the connecting portions (7).
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公开(公告)号：US20210006154A1
公开(公告)日：2021-01-07
申请号：US16920023
申请日：2020-07-02
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Luis Miguel CALHAU GONÇALVES , Kenneth G. HANSEN
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.
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公开(公告)号：US20200378466A1
公开(公告)日：2020-12-03
申请号：US16486549
申请日：2018-01-31
Applicant: Vestas Wind Systems A/S
Inventor： Søren Bøgelund Madsen
Abstract: The present invention relates to a tower damper adapted to be mounted in a wind turbine tower, the tower damper comprising a pendulum structure adapted to be suspended in the wind turbine tower, said pendulum structure comprising a pendulum body, a chamber holding a damping liquid into which damping liquid the pendulum structure is at least partly immersed, a plurality of damping elements arranged to dampen movements of the pendulum structure when suspended in the wind turbine tower, the plurality of damping elements comprising a foam portion composed of a resilient and porous foam material, and a suspension arrangement for suspending the pendulum structure in the wind turbine tower such that the pendulum structure is allowed to displace from a neutral position for the pendulum structure.
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公开(公告)号：US20200378365A1
公开(公告)日：2020-12-03
申请号：US16496650
申请日：2018-03-16
Applicant: Vestas Wind Systems A/S
Inventor： Shinto Mathew , Michael Christensen , Joris Kofman
IPC: F03D13/40
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.
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Patent Agency Ranking
公开(公告)号：US10855082B2
公开(公告)日：2020-12-01
申请号：US16099608
申请日：2017-05-16
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Ciprian Biris , Gert Karmisholt Andersen , Uffe C. Merrild , Leif Svinth Christensen
Abstract: Aspects of the present invention relate to a method for controlling an amount of power to be delivered from a wind turbine generator to a power grid during an abnormal power grid event, the method comprising the steps of detecting an abnormal power grid event; controlling an active current delivered to the power grid in response to a measured or determined total active current; and controlling a reactive current delivered to the power grid in response to a measured or determined total reactive current. Aspects of the present invention further relate to a computer program product for carrying out the method as well as a wind turbine generator being capable of carrying out embodiments of the invention.
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公开(公告)号：US10830203B2
公开(公告)日：2020-11-10
申请号：US15517182
申请日：2015-10-09
Applicant: Vestas Wind Systems A/S
Inventor： Daniel Whitehouse , Jagjit Bhangal
Abstract: A wind turbine blade includes a trailing edge flap having a flap part protruding from the trailing edge on the pressure side of the blade. The flap part has a first section and a second section each having an upstream surface arranged to face an oncoming airflow in use. The first section extends from the trailing edge and has a proximal end and a distal end in cross-section. The proximal end is located at or near the trailing edge and the distal end is spaced apart from the trailing edge. The first section is oriented such that an obtuse angle is defined between the upstream surface of the first section and a plane that extends parallel to the local chordal plane and intersects the proximal end of the first section. The second section is oriented such that the upstream surfaces of the first and second sections together define a concave profile in cross section.
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公开(公告)号：US20200350834A1
公开(公告)日：2020-11-05
申请号：US16957085
申请日：2018-12-06
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Ciprian BIRIS , Kent TANGE , Duy Duc DON , Torsten LUND , Gert Karmisholt ANDERSEN
Abstract: The invention relates to a method for operating a wind turbine which comprises a power generator, a generator side converter, a grid side converter, a DC link electrically connected to an output of the generator side converter and an input of the grid side converter. The method comprises monitoring a wind turbine signal for detection of an operational condition which requires an increase of an output voltage of the grid side converter, upon detection of the operational condition, initiate an over-modulation mode wherein the grid side converter is operated with a modulation index in an over-modulation range, and upon the detection of the operational condition, initiate a DC-voltage adjustment mode wherein the a DC-voltage of the DC link is increased from a first voltage level towards a second voltage level.
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公开(公告)号：US10823156B2
公开(公告)日：2020-11-03
申请号：US15737961
申请日：2016-06-08
Applicant: Vestas Wind Systems A/S
Inventor： Michael Christensen , Simon Kabus , Erik Markussen , Jesper Lykkegaard Neubauer
Abstract: The present invention provides a segmented pitch ring for use in a blade pitch system of a wind turbine. The segmented pitch ring is formed of a plurality of segments manufactured by different processes. In particular, one or more of the segments are formed by a rolling process, and one or more of the segments are formed by a casting process. The segments are arc-shaped or include arc-shaped sections that in combination define a substantially circular circumference of the pitch ring.
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公开(公告)号：US20200340455A1
公开(公告)日：2020-10-29
申请号：US16330419
申请日：2017-09-14
Applicant: Vestas Wind Systems A/S
Inventor： Angelo Sardellano
Abstract: An apparatus (1) for movement along a tower structure (11) is disclosed, the apparatus (1) being configured to be arranged at least partly circumferentially around the tower structure (11). The apparatus (1) comprises a plurality of sliding rails (2) and a frame structure comprising a plurality of frame elements (3). Each frame element (3) is slidably connected to at least one of the sliding rails (2), and the frame elements (3) and the sliding rails (2) are interconnected to form a scissor structure. An upwardly directed lifting force applied, by means of a hoisting mechanism (8), at connecting points (10) at or near positions where the frame elements (3) are connected to the sliding rails (2), in combination with gravity working on the frame structure, causes the frame elements (3) to slide along the sliding rails (2), thereby causing the scissor structure to contract or expand to adjust a diameter of the frame structure to an outer diameter of a tower structure (11) having the apparatus (1) mounted thereon.
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