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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：WO2020125896A1
公开(公告)日：2020-06-25
申请号：PCT/DK2019/050399
申请日：2019-12-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： DALSGAARD, Søren , BØTTCHER, Peter , NEUBAUER, Jesper Lykkegaard , YDE, Anders , NETO, Julio Xavier Vianna , BAUN, Torben Ladegaard
Abstract: A first aspect of the invention provides a method of testing a yaw system (200) of a wind turbine, the wind turbine comprising a rotor; the yaw system (200) comprising a yaw gear (202) coupled to the rotor so that rotation of the yaw gear (202) causes yaw rotation of the rotor, and first and second sub-systems (204a, 204b), the first sub-system (204a) comprising a first pinion gear (206a) and a first drive motor (208a) coupled to the yaw gear (202) by the first pinion gear (206a), the second sub-system (204b) comprising a second pinion gear (206b) and a second drive motor (208b) coupled to the yaw gear (202) by the second pinion gear (206b). The method comprises the steps of: testing the first sub-system (204a) by: applying a first yaw moment to the yaw gear (202) with the second drive motor (208b) via the second pinion gear (206b), reacting the first yaw moment with the first pinion gear (206a), monitoring a yaw motion parameter indicative of rotation of the yaw gear (202), and determining a condition of the first sub-system (204a) based on the monitored yaw motion parameter.
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公开(公告)号：WO2020088725A1
公开(公告)日：2020-05-07
申请号：PCT/DK2019/050301
申请日：2019-10-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： DALSGAARD, Søren , NETO, Julio Xavier Vianna , SØRENSEN, Kim Hylling , CHRISTENSEN, Poul Brandt , CAPONETTI, Fabio
Abstract: A method of charging an energy storage system, such as a battery, a capacitor, or a super capacitor, using a wind turbine is described. The method comprises establishing if turbine power production can be increased and establishing if the energy storage system is capable of taking a charge. If both conditions are met, the power generated by the wind turbine is increased above a rated power of the wind turbine and the additional power is used to charge the energy storage systems. A method of control is also disclosed.
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公开(公告)号：WO2020011322A1
公开(公告)日：2020-01-16
申请号：PCT/DK2019/050212
申请日：2019-07-02
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： DALSGAARD, Søren
Abstract: The present invention is directed to operation of a multi-rotor wind turbine comprising at least two rotors. Each rotor has a rated capacity. The method comprises monitoring a power output of the rotors, detecting that the power output of at least a first one of the 5 rotors is below its rated capacity, detecting that the power output of at least a second one of the rotors is at its rated capacity, and controlling operation of the second rotor, such as to temporarily increase its power output to a value above its rated capacity.
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Patent Agency Ranking
公开(公告)号：WO2021180291A1
公开(公告)日：2021-09-16
申请号：PCT/DK2021/050081
申请日：2021-03-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： BAUN, Torben Ladegaard , NETO, Julio Xavier Vianna , NEUBAUER, Jesper Lykkegaard , FYNBO, Peter , DALSGAARD, Søren , WOLLESEN, Anders Yde , JØRGENSEN, Brian
Abstract: A multirotor (MR) wind turbine (1) comprising a plurality of energy generating units (5) attached to a load carrying structure (3) carried by a tower via a main yaw assembly. The energy generating units (5) are attached to the load carrying structure via a local yaw assembly which allows yawing of the energy generating unit relative to the load carrying structure. To allow individual orientation of each energy generating unit, the MR wind turbine is configured to define an operational angle of each energy generating unit relative to an prevailing wind direction. This operational angle corresponds to a normal operational situation where the energy generating unit converts wind energy. The MR wind turbine is further configured to yaw each energy generating units to and from the operational angle individually by use of the local yaw assembly.
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公开(公告)号：WO2021143990A1
公开(公告)日：2021-07-22
申请号：PCT/DK2021/050007
申请日：2021-01-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NETO, Julio Xavier Vianna , DALSGAARD, Søren , COUCHMAN, Ian , SOWMAN, Jon
IPC: F03D1/02 , F03D7/02 , F03D7/0224 , F03D7/0296 , F05B2270/807
Abstract: Embodiments herein describe in-plane vibration damping techniques for MR turbines. The MR turbines can include arms that extend from a common tower and support multiple rotors. Because the rotors are disposed laterally away from the tower, side-to-side motion of the tower causes the rotors to have an angled trajectory that includes both lateral and vertical displacement. In addition, a rotor disposed on one side of the tower in MR turbine can have a very different trajectory than a rotor disposed on the opposite side of the tower. To account for the vertical displacement and the different trajectories, in one embodiment, a controller can use different phase offsets for each rotor when calculating pitch offsets for performing in-plane vibration damping. In another embodiment, the controller can use both the lateral and vertical accelerations of the rotors to identify the pitch offsets for the rotors to perform in-plane vibration damping.
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公开(公告)号：WO2021121503A1
公开(公告)日：2021-06-24
申请号：PCT/DK2020/050357
申请日：2020-12-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Thomas S. Bjertrup , DALSGAARD, Søren
IPC: F03D7/02 , F03D7/0236 , F03D7/024 , F03D7/0296 , F05B2240/2022 , F05B2270/334
Abstract: The invention relates to method for damping tower oscillations of a wind turbine with a variable rotor area, the wind turbine comprises a tower, a rotor with one or more rotor blades which are arranged hinged at an adjustable pivot angle, where the pivot angle is adjustable dependent on a variable pivot force or pivot moment provided by a pivot actuator, the method comprises - detecting a tower oscillation, and - dependent on the detected tower oscillation, decreasing or increasing the pivot angle to achieve a reduction of the detected oscillation.
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公开(公告)号：WO2020007431A1
公开(公告)日：2020-01-09
申请号：PCT/DK2019/050216
申请日：2019-07-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NETO, Julio Xavier Vianna , DALSGAARD, Søren , YDE, Anders , SØRENSEN, Kim Hylling
Abstract: A method of damping oscillations in a multi-rotor wind turbine and a wind turbine are provided. The wind turbine comprises a wind turbine support structure and at least a first nacelle with a first rotor and a second nacelle with a second rotor, at least one of the nacelles being located at a position away from a central longitudinal axis of the wind turbine support structure. The method comprises the steps of receiving and processing motion data, selecting a damping algorithm and generating a pitch control signal. The processing comprises determining at least one prominent oscillation mode of the wind turbine support structure and selecting a corresponding damping algorithm.
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公开(公告)号：WO2013097860A1
公开(公告)日：2013-07-04
申请号：PCT/DK2012/050491
申请日：2012-12-20
Applicant: VESTAS WIND SYSTEMS A/S
CPC classification number: F03D7/04 , F03D7/042 , F03D17/00 , G01L1/26 , G01M5/0041 , G01M5/0066 , Y02B10/30
Abstract: A method of estimating an amount of undesired loading experienced by at least a portion of a structure(100) is provided. The structure(100) may be, for example, a wind turbine generator (WTG) and the portion for which undesired loading is estimated may be, for example, a rotor (130) of the WTG. The method includes receiving a first signal characterizing instantaneous stress experienced by a component (140) of the structure(100) and filtering out at least a portion of the received first signal that corresponds to the desired loading experienced by the component to produce a first filtered signal. The amount of undesired loading experienced by the at least a portion of the structure(100) is estimated based at least partially on the first filtered signal.
Abstract translation: 提供了一种估计由结构（100）的至少一部分经历的不希望的加载量的方法。 结构（100）可以是例如风力涡轮发电机（WTG），并且估计不期望的负载的部分可以是例如WTG的转子（130）。 所述方法包括接收表征由所述结构（100）的组件（140）经历的瞬时应力的第一信号，并且过滤所接收到的所述第一信号的至少一部分，所述第一信号对应于由所述组件经历的期望负载以产生第一滤波 信号。 至少部分地基于第一滤波信号来估计结构（100）的至少一部分所经历的不需要的负载量。
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