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公开(公告)号：US20210324831A1
公开(公告)日：2021-10-21
申请号：US17260014
申请日：2019-07-16
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen , Peter Bjørn Andersen
Abstract: A method for controlling a wind turbine (1) is disclosed. The wind turbine (1) comprises one or more wind turbine blades (5), each wind turbine blade (5) being connected to a blade carrying structure (4) mounted on a hub (3), via a hinge (6) at a hinge position of the wind turbine blade (5), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. A maximum noise level value representing a maximum allowable noise to be generated by the wind turbine (1) is received. An optimal pair of tip speed for the wind turbine (1) and rotational speed of the wind turbine (1) is derived, based on the received maximum noise level value. The pivot angle of the wind turbine blades (5) is then adjusted to a pivot angle which results in the derived optimal pair of tip speed and rotational speed.
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公开(公告)号：US20210270237A1
公开(公告)日：2021-09-02
申请号：US16973060
申请日：2019-06-13
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen , Torben Ladegaard Baun
Abstract: A wind park with wind turbines and airborne wind energy systems where a first zone and a second zone is defined for at least one of the airborne wind energy systems such that the risk of collision between a part of that airborne wind energy systems and a part of one of the wind turbines is higher when the airborne unit of that airborne wind energy system is in the second zone than when it is in the first zone, and different control parameters are applied to the control of at least one of the wind turbine and the airborne wind energy system depending on the position of the airborne unit relative to the defined zones.
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公开(公告)号：US20210172422A1
公开(公告)日：2021-06-10
申请号：US16771847
申请日：2018-12-20
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen
Abstract: The invention relates to a method for controlling the operation of a number of airborne wind energy systems arranged in a wind energy park, where each airborne wind energy system comprising a wind engaging member being coupled to a ground station via a cable. The method comprises the determination of an operational parameter of each of the airborne wind energy systems, such as the flight trajectory, the cable tension, or the power production. A first airborne wind energy system is controlled according to a fault control mode if its operational parameter deviates more than a predetermined threshold parameter from the operation parameters of the other airborne wind energy system. The method further comprises operating one or more neighbouring airborne wind energy systems according to a safe control mode.
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公开(公告)号：US11466663B2
公开(公告)日：2022-10-11
申请号：US17059720
申请日：2019-06-12
Applicant: Vestas Wind Systems A/S
Inventor： Peter Bjørn Andersen , Thomas S. Bjertrup Nielsen , Aksel Petersen , Peng Wang
Abstract: A wind turbine (1) comprising a tower (2), a nacelle (3) and a hub (7) is disclosed. The hub (7) comprises a blade canying structure (4) with one or more wind turbine blades (5) connected thereto. Each of the wind turbine blades (5) is connected to the blade canying structure (4) via a hinge (6) at a hinge position of the wind turbine blade (5), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. The wind turbine (1) further comprises a stop mechanism arranged to move the wind turbine blades (5) to a safe pivot angle in the case of an emergency, the stop mechanism comprising a release mechanism (8, 12, 14) and at least one wire (9, 10) interconnecting the release mechanism (8, 12, 14) and each of the wind turbine blades (5). Activation of the release mechanism (8, 12, 14) causes an abrupt change in a pulling force applied to the wind turbine blades (5) by the wire(s) (9, 10), the change in pulling force causes the wind turbine blades (5) to move immediately to the safe pivot angle.
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15.发明授权公开(公告)号：US11319921B2
公开(公告)日：2022-05-03
申请号：US15734272
申请日：2019-06-12
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen , Peter Bjørn Andersen
Abstract: A wind turbine (1) comprising a tower (2), a nacelle (3) and a hub (7) is disclosed. The hub (7) comprises a blade carrying structure (4) with one or more wind turbine blades (5) connected to thereto. Each of the wind turbine blades (5) defines an aerodynamic profile having a thickness which varies along a length of the wind turbine blade (5). Each of the wind turbine blades (5) is connected to the blade carrying structure (4) via a hinge (6) at a hinge position of the wind turbine blade (5), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. The hinge position is arranged at a distance from the inner tip end (5a) and at a distance from the outer tip end (5b), and the thickness, or the thickness-to chord ratio, at the hinge position is larger than the thickness, or the thickness-to-chord ratio, at the inner tip end (5a) and larger than the thickness, or the thickness-to-chord ratio, at the outer tip end (5b).
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Patent Agency Ranking
16.发明申请公开(公告)号：US20210215130A1
公开(公告)日：2021-07-15
申请号：US15734272
申请日：2019-06-12
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen , Peter Bjørn Andersen
Abstract: A wind turbine (1) comprising a tower (2), a nacelle (3) and a hub (7) is disclosed. The hub (7) comprises a blade carrying structure (4) with one or more wind turbine blades (5) connected to thereto. Each of the wind turbine blades (5) defines an aerodynamic profile having a thickness which varies along a length of the wind turbine blade (5). Each of the wind turbine blades (5) is connected to the blade carrying structure (4) via a hinge (6) at a hinge position of the wind turbine blade (5), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. The hinge position is arranged at a distance from the inner tip end (5a) and at a distance from the outer tip end (5b), and the thickness, or the thickness-to chord ratio, at the hinge position is larger than the thickness, or the thickness-to-chord ratio, at the inner tip end (5a) and larger than the thickness, or the thickness-to-chord ratio, at the outer tip end (5b).
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公开(公告)号：US20210207582A1
公开(公告)日：2021-07-08
申请号：US17059734
申请日：2019-06-12
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen , Peter Bjørn Andersen
Abstract: A wind turbine (1) comprising a tower (2), a nacelle (3) and a hub (7) is disclosed. The hub (7) comprises a blade carrying structure (4) with one or more wind turbine blades (5) connected thereto. Each of the wind turbine blades (5) defines an aerodynamic profile having a chord which varies along a length of the wind turbine blade (5). Each of the wind turbine blades (5) is connected to the blade carrying structure (4) via a hinge (6) at a hinge position of the wind turbine blade (5), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. The hinge position is arranged at a distance from the inner tip end (5a) and at a distance from the outer tip end (5b), and the chord at the hinge position is larger than or equal to the chord at the inner tip end (5a) and larger than the chord at the outer tip end (5b).
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公开(公告)号：US12066003B2
公开(公告)日：2024-08-20
申请号：US18257576
申请日：2021-12-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Thomas S. Bjertrup Nielsen , Torben Juul Larsen , Mikkel Kiilerich Østerlund , Mohammed Fajar , Peter Bøttcher , Robert Rudolf
IPC: F03D1/06
CPC classification number: F03D1/066 , F03D1/0664 , F03D1/0677 , F05B2240/302
Abstract: A pitch controlled wind turbine comprising a tower, a nacelle mounted on the tower, a hub mounted rotatably on the nacelle, and at least three wind turbine blades is disclosed. Each wind turbine blade extends between a root end connected to the hub via a pitch mechanism, and a tip end. The wind turbine further comprises at least three blade connecting members, each blade connecting member extending between a connection point on one wind turbine blade and a connection point on a neighboring wind turbine blade, the connection points being arranged at a distance from the root end and at a distance from the tip end of the wind turbine blade. The wind turbine further comprises at least three pre-tension members, each pre-tension member being connected to one of the blade connecting members and to a hub part, the pre-tension members thereby providing pre-tension in the blade connecting members.
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公开(公告)号：US11473559B2
公开(公告)日：2022-10-18
申请号：US17271337
申请日：2019-09-13
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen , Peter Bjørn Andersen , Torben Juul Larsen , Mikkel Kiilerich Østerlund
Abstract: A horizontal axis wind turbine (1) with a wind turbine blade (5) is disclosed, the wind turbine blade (5) comprising a hinge (6) arranged to connect the wind turbine blade (5) to a blade carrying structure (4) of the wind turbine (1), at a non-zero distance from an inner tip (5a) and at a non-zero distance from an outer tip (5b) of the wind turbine blade (5). An outer blade part (7) is arranged between the hinge region and the outer tip (5b), and an inner blade part (8) is arranged between the hinge region and the inner tip (5a). The outer blade part (7) extends from the hinge region along a first direction and the inner blade part (8) extends from the hinge region along a second direction, and the first direction and the second direction form an angle, α, there between, where 0°
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20.发明授权公开(公告)号：US11365721B2
公开(公告)日：2022-06-21
申请号：US16964186
申请日：2019-01-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Morten Lindholm , Thomas S. Bjertrup Nielsen , Torben Petersen , Lars Helle
Abstract: The present invention relates to wind energy park connected to an electrical grid, having airborne wind energy systems (AWES), e.g. with kites. The wind energy park has an electrical DC network connecting the plurality of AWES and a grid converter unit for converting DC to AC, and transmit AC to the electrical grid. The wind energy park control unit controls the AWES to produce electrical power to the electrical grid by alternating between a power production phase, and a recovery phase so to balance the supply of power to the electrical grid according a demanded setpoint. An advantage is that the grid converter may be smaller, as compared to an AC network, because the power is evened out with the negative power from the AWES being in recovery phase. In this way, the invention stabilizes the grid and has a grid forming capability.
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