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公开(公告)号：WO2019238190A1
公开(公告)日：2019-12-19
申请号：PCT/DK2019/050182
申请日：2019-06-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn
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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2.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：WO2020052725A1
公开(公告)日：2020-03-19
申请号：PCT/DK2019/050269
申请日：2019-09-13
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： ANDERSEN, Peter Bjørn , NIELSEN, Thomas S. Bjertrup
IPC: F03D7/02
Abstract: A wind turbine blade (6) having a span-wise direction between an inner tip region (6a) and an outer tip region (6b), and a chord-wise direction (AA) perpendicular to the span-wise direction is disclosed. The wind turbine blade (6) comprises a hinge (7), an outer blade part (8) and an inner blade part (9). The hinge (7) is arranged to connect the wind turbine blade (6) to a blade carrying structure (5) of a wind turbine (1). The hinge (7) is arranged at a distance from the inner tip region (6a) and at a distance from the outer tip region (6b). The outer blade part (8) is arranged between the hinge (7) and the outer tip region (6b) and the inner blade part (9) is arranged between the hinge (7) and the inner tip region (6a). The inner blade part (9) comprises at least two inner blade portions (20) each having a profile and wherein the inner blade portions (20) are arranged such that the profiles are spaced from each other in the chord-wise direction (AA).
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公开(公告)号：WO2021043381A1
公开(公告)日：2021-03-11
申请号：PCT/DK2020/050242
申请日：2020-08-31
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn
Abstract: A wind energy farm (2) comprising a plurality of wind turbines (1) is disclosed. At least some of the wind turbines (1) each comprises one or more wind turbine blades (7) connected to a blade carrying structure (6) of the hub (5) via a hinge (8), each wind turbine blade (7) thereby being arranged to perform pivot movements relative to the blade carrying structure (6) between a minimum pivot angle and a maximum pivot angle. The wind turbine blades (7) of each wind turbine (1) defines a rotor area (10), the rotor area (10) being variable as a function of the pivot angle. The rotor area (10) comprises a swept part (11) being swept by the wind turbine blades (7) during rotation of the hub (5), and an un-swept centre part (12) which is not swept by the wind turbine blades (7) during rotation of the hub (5). The wind turbines (1) of the wind energy farm (2) are positioned in such a manner that the un-swept part (12) of the rotor area (10) of a given upstream wind turbine (1), as seen along at least one wind direction (9), overlaps with the swept part (11) of the rotor area (10) of one or more downstream wind turbines (1), as seen along at least one wind direction (9).
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Patent Agency Ranking
公开(公告)号：WO2019238191A1
公开(公告)日：2019-12-19
申请号：PCT/DK2019/050183
申请日：2019-06-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn , PETERSEN, Aksel , WANG, Peng
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) 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 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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公开(公告)号：WO2017178025A1
公开(公告)日：2017-10-19
申请号：PCT/DK2017/050104
申请日：2017-04-04
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： ANDERSEN, Peter Bjørn , GUPTA, Anurag , KUDSK, Henrik , SCHOMACKER, Jonas Lerche
CPC classification number: F03D1/02 , F03D7/0204 , F03D13/20 , F05B2240/2211 , F05B2240/2213 , F05B2270/402 , Y02E10/723
Abstract: A multirotor wind turbine (1) comprising a tower structure (2) and at least one load carrying structure (3, 4), each load carrying structure (3, 4) being arranged for carrying two or more energy generating units (5, 7) comprising a rotor (6, 8). At least two of the rotors are upwind or downwind rotors (6), the energy generating units (5) comprising upwind or downwind rotors (6) being arranged with their centres of gravity at a first distance behind the tower structure (2) along a direction of the incoming wind, substantially at the same vertical level, and at opposite sides of the tower structure (2) at substantially the same second distance to the tower structure (2) along a direction substantially perpendicular to the direction of the incoming wind. The multirotor wind turbine (1) is self-yawing, even under turbulent wind conditions.
Abstract translation: 一种多转子风力涡轮机（1），包括塔架结构（2）和至少一个承载结构（3,4），每个承载结构（3,4）布置成承载两个或更多个承载结构 包括转子（6,8）的更多能量产生单元（5,7）。 至少两个转子是逆风或顺风转子（6），包括顺风或顺风转子（6）的能量产生单元（5）以重心位于塔结构（2）后面的第一距离沿着 进入风的方向基本上处于相同的竖直高度，并且在与塔架结构（2）相对的两侧沿基本上垂直于迎风方向的方向与塔架结构（2）基本上相同的第二距离处。 多旋翼风力发电机（1）即使在湍流风力条件下也能自行偏航。
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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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公开(公告)号：WO2021069042A1
公开(公告)日：2021-04-15
申请号：PCT/DK2020/050276
申请日：2020-10-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , ANDERSEN, Peter Bjørn , DALSGAARD, Søren , SØRENSEN, Kim Hylling
IPC: F03D7/02
Abstract: A method for starting a wind turbine (1) with hinged wind turbine blades (5), the wind turbine (1) further comprising an adjustable biasing mechanism (8, 10, 11) arranged to apply an adjustable biasing force to each wind turbine blade (5) which biases the wind turbine blade (5) towards a position defining a minimum pivot angle. The biasing mechanism (8, 10, 11) is adjusted to apply a predefined biasing force to each wind turbine blade (5), and the pivot angle of each wind turbine blade (5) is monitored. The wind turbine (1) is started in the case that the pivot angle of at least one wind turbine blade (5) exceeds a predefined pivot angle threshold.
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公开(公告)号：WO2020052727A1
公开(公告)日：2020-03-19
申请号：PCT/DK2019/050271
申请日：2019-09-13
Applicant: VESTAS WIND SYSTEMS A/S
Abstract: A wind turbine (1) comprising a tower (2), a nacelle (3) mounted on the tower (2) via a yaw system, a hub (4) mounted rotatably on the nacelle (3), the hub (4) comprising a blade carrying structure (5), and one or more wind turbine blades (6) connected to the blade carrying structure (5) via a hinge (7) is disclosed. Each wind turbine blade (6) is thereby arranged to perform pivot movements relative to the blade carrying structure (5) between a minimum pivot angle and a maximum pivot angle. The blade carrying structure (5) is provided with one or more elements (8) configured to improve aerodynamic properties of a surface of the blade carrying structure (5) by increasing a lift and/or decreasing a drag of the blade carrying structure. The increase in lift and/or decrease in drag varies as a function of angle of attack (AOA) between the blade carrying structure (5) and the incoming wind.
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