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公开(公告)号：WO2022128040A1
公开(公告)日：2022-06-23
申请号：PCT/DK2021/050374
申请日：2021-12-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , LARSEN, Torben Juul , ØSTERLUND, Mikkel Kiilerich , FAJAR, Mohammed , BØTTCHER, Peter , RUDOLF, Robert Thomas
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 (10) connected to the hub (4) via a pitch mechanism, and a tip end. The wind turbine (1) further comprises at least three blade connecting members (6), each blade connecting member (6) extending between a connection point (7) on one wind turbine blade (5) and a connection point (7) on a neighbouring wind turbine blade (5), the connection points (7) being arranged at a distance from the root end (10) and at a distance from the tip end of the wind turbine blade (5). The wind turbine (1) further comprises at least three pre-tension members (8), each pre-tension member (8) being connected to one of the blade connecting members (6) and to a hub part (4, 9, 26), the pre-tension members (8) thereby providing pre-tension in the blade connecting members (6).
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公开(公告)号：WO2021129906A1
公开(公告)日：2021-07-01
申请号：PCT/DK2020/050358
申请日：2020-12-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn , JØRGENSEN, Brian , SØRENSEN, Kim Hylling , DALSGAARD, Søren , LARSEN, Torben Juul
IPC: F03D7/02 , F03D7/0204 , F03D7/0236 , F03D7/024 , F05B2240/2022 , F05B2240/2213 , F05B2270/329
Abstract: A method for controlling yaw of a wind turbine (1) is disclosed. One or more wind turbine blades (5) are connected to a blade carrying structure (4) via a hinge (6), 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 comprising an adjustable biasing mechanism (8, 11, 12) arranged to apply an adjustable biasing force to each wind turbine blade (5) which biases the wind turbine blade (5) towards a position defining minimum pivot angle or towards a position defining maximum pivot angle. A yaw signal, e.g. a yaw moment (10), of the wind turbine (1) is detected and compared to a reference yaw signal. In the case that the difference between the detected yaw signal and the reference yaw signal exceeds a first predefined threshold value, azimuth position of each of the wind turbine blades (5) is monitored, and the biasing force applied to each wind turbine blade (5) is changed as a function of azimuth position for wind turbine blades (5) in at least some azimuth positions at a first side of a vertical level intersecting the hub (3) or for wind turbine blades (5) in at least some azimuth positions at a second, opposite, side of the vertical level, thereby creating a yaw moment which causes the yaw signal of the wind turbine (1) to approach the reference yaw signal.
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3.发明申请
公开(公告)号：WO2021129907A1
公开(公告)日：2021-07-01
申请号：PCT/DK2020/050359
申请日：2020-12-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn , JØRGENSEN, Brian , DALSGAARD, Søren , SØRENSEN, Kim Hylling , LARSEN, Torben Juul
IPC: F03D7/02 , F03D7/0236 , F03D7/024 , F05B2240/2022
Abstract: A method for controlling tilt moment (10) of a wind turbine (1) is disclosed. One or more wind turbine blades (5) are connected to a blade carrying structure (4) via a hinge (6), 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 an adjustable biasing mechanism (8, 11, 12) arranged to apply an adjustable biasing force to each wind turbine blade (5) which biases the wind turbine blade (5) towards a position defining minimum pivot angle or towards a position defining maximum pivot angle. Upon determining that tilt moment reduction is required, azimuth position of each of the wind turbine blades (5) is monitored, and the biasing force applied to each wind turbine blade (5) is changed as a function of azimuth position for wind turbine blades (5) in at least some azimuth positions above a horizontal level or for wind turbine blades (5) in at least some azimuth positions below the horizontal level.
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公开(公告)号：WO2020052726A1
公开(公告)日：2020-03-19
申请号：PCT/DK2019/050270
申请日：2019-09-13
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn , LARSEN, Torben Juul , ØSTERLUND, Mikkel Kiilerich
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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公开(公告)号：WO2023078521A1
公开(公告)日：2023-05-11
申请号：PCT/DK2022/050232
申请日：2022-11-03
Applicant: VESTAS WIND SYSTEMS A/S
IPC: F03D7/02
Abstract: A method for controlling a wind turbine (1) is disclosed. The wind turbine (1) comprises three or more wind turbine blades (4), and blade connecting wires (7), each blade connecting wire (7) extending between a connection point (8) on one wind turbine blade (4) and a connection point (8) on a neighbouring wind turbine blade (4). The wind turbine (1) further comprises pre-tension wires (9), each pre-tension wire (9) being connected to one of the blade connecting wires (7) and to a pre-tension adjustment mechanism (10). The method comprises measuring at least one parameter of the wind turbine blades (4) of the wind turbine (1), and deriving an estimate for a blade flap load for each wind turbine blade (4) from the at least one measured parameter. The pre-tension adjustment mechanism (10) is controlled in response to the estimated blade flap loads of the wind turbine blades (4), thereby adjusting the pre-tension provided by the pre-tension wires (9).
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Patent Agency Ranking
公开(公告)号：WO2023078519A1
公开(公告)日：2023-05-11
申请号：PCT/DK2022/050230
申请日：2022-11-03
Applicant: VESTAS WIND SYSTEMS A/S
Abstract: A method for controlling a wind turbine (1) is disclosed. The wind turbine (1) comprises three or more wind turbine blades (4), and blade connecting wires (7), each blade connecting wire (7) extending between a connection point (8) on one wind turbine blade (4) and a connection point (8) on a neighbouring wind turbine blade (4). The wind turbine further comprises pre-tension wires (9), each pre-tension wire (9) being connected to one of the blade connecting wires (7) and to a pre-tension adjustment mechanism (10). The method comprises measuring at least one parameter of the wind turbine blades (4) of the wind turbine (1), and deriving, from the at least one measured parameter, an estimate for blade vibrations within the rotor plane of each wind turbine blade (4) and/or coupled rotor vibrations originating from the wind turbine blades (4). The pre-tension adjustment mechanism (10) is controlled based on the estimated vibrations in order to counteract the blade vibrations and/or coupled rotor vibrations.
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公开(公告)号：WO2023078520A1
公开(公告)日：2023-05-11
申请号：PCT/DK2022/050231
申请日：2022-11-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： SØRENSEN, Kim Hylling , LARSEN, Torben Juul , NIELSEN, Thomas S. Bjertrup , ØSTERLUND, Mikkel Kiilerich , RUDOLF, Robert Thomas , BØTTCHER, Peter
Abstract: A method for controlling a wind turbine (1) is disclosed. The wind turbine (1) comprises three or more wind turbine blades (4), and blade connecting wires (7), each blade connecting wire (7) extending between a connection point (8) on one wind turbine blade (4) and a connection point (8) on a neighbouring wind turbine blade (4). The wind turbine (1) further comprises pre-tension wires (9), each pre-tension wire (9) being connected to one of the blade connecting wires (7) and to a pre-tension adjustment mechanism (10). The method comprises measuring at least one parameter of the wind turbine (1), and deriving an estimate for a rotor imbalance of the wind turbine (1) from the at least one measured parameter. The pre-tension adjustment mechanism (10) is controlled based on the estimated rotor imbalance in order to counteract the rotor imbalance.
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公开(公告)号：WO2022194333A1
公开(公告)日：2022-09-22
申请号：PCT/DK2022/050051
申请日：2022-03-18
Applicant: VESTAS WIND SYSTEMS A/S
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).
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公开(公告)号：WO2021209110A1
公开(公告)日：2021-10-21
申请号：PCT/DK2021/050110
申请日：2021-04-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： KAZAR, Simon Stevns , BAUN, Torben Ladegaard , NIELSEN, Thomas S. Bjertrup , LARSEN, Torben Juul , SØRENSEN, Kim Hylling , NEUBAUER, Jesper Lykkegaard , PETTERSEN, Niels Hansborg
IPC: F03D7/02
Abstract: A method for controlling a yaw system (1) of a wind turbine is disclosed. The yaw system (1) comprises a toothed yaw ring (2) connected to one of a tower (8) or a nacelle (7) and an active yaw mechanism comprising at least one yaw drive (3) connected to the other of the tower (8) or the nacelle (7). Each yaw drive (3) comprises a pinion (5) configured to be arranged in engagement with the toothed yaw ring (2) and a drive mechanism (6) configured to drive the pinion (5). In the case that a wind speed and/or a turbulence and/or wind driven loads on the wind turbine exceeds a predefined threshold value, the active yaw mechanism is decoupled by decoupling at least the drive mechanism (6) of at least one of the yaw drives (3) from the yaw system (1). Subsequently the nacelle (7) is allowed to perform yaw movements relative to the tower (8) by means of free yawing.
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公开(公告)号：EP4426928A1
公开(公告)日：2024-09-11
申请号：EP22805769.1
申请日：2022-11-03
Applicant: VESTAS WIND SYSTEMS A/S
CPC classification number: F03D1/0625 , F03D1/0675 , F05B2260/9620130101 , F03D7/0296 , Y02E10/72 , F03D1/0658
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