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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：WO2021121502A1
公开(公告)日：2021-06-24
申请号：PCT/DK2020/050353
申请日：2020-12-11
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NETO, Julio Xavier Vianna , JØRGENSEN, Brian , DALSGAARD, Søren
IPC: F03D1/02 , F03D80/50 , F03D13/20 , F05B2230/61 , F05B2240/95
Abstract: A multiple rotor (MR) wind turbine comprising a tower (21) extending in an upwards direction, a load carrying structure (22) extending in an outwards direction and being fixed to the tower, and an energy generating unit (54) fixed to the load carrying structure, wherein the outwards direction is transverse to the upwards direction, the wind turbine further comprising a hoisting line (53) for communication of objects (52) to and from the energy generating unit (54), the hoisting line being windable from an attachment point (55) of the load carrying structure or from the energy generating unit. To allow positioning of hosted objects near the tower, or at selectable distance from the tower, the hoisting line extends from the attachment point via a suspension point (56) to a lifting point (57) where the object (52) can be attached, and the suspension point (56) is movable outside the load carrying structure.
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公开(公告)号：WO2019114894A1
公开(公告)日：2019-06-20
申请号：PCT/DK2018/050291
申请日：2018-11-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NETO, Julio Xavier Vianna , TARNOWSKI, Germán Claudio , BLUMENSAAT, Mads , PETERSEN, Torben , DALSGAARD, Søren
CPC classification number: F03D9/11 , F03D7/0272
Abstract: A method for controlling a wind turbine (2) is disclosed. During full load operation, a power reference value, P ref , representing a power level to be supplied to the power grid by the wind turbine (2), is received, and the wind turbine (2) is controlled in order to produce an output power which is at or near the power reference value, P ref , while maintaining a constant torque on the generator (6). In the case that the produced output power of the wind turbine (2) exceeds the power reference value, P ref , excess produced energy is stored in the energy storage system (10), and in the case that the produced output power of the wind turbine (2) is below the power reference value, P ref , stored energy is retrieved from the energy storage system (10). A power level being equal to the power reference value, P ref , is supplied to the power grid.
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公开(公告)号：WO2019034218A1
公开(公告)日：2019-02-21
申请号：PCT/DK2018/050190
申请日：2018-08-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NETO, Julio Xavier Vianna
CPC classification number: F03D1/02 , F03D7/0276 , F05B2240/40 , F05B2270/335
Abstract: A method is disclosed for controlling a multi-rotor wind turbine. The method comprises a step of receiving, from respective production controllers (115, 125, 145), operational data representative of a current power output of the respective rotors (110, 120, 130, 140). A rotor activity pattern is determined based on the operational data of each the rotors (110, 120, 130, 140), and for each rotor (110, 120, 130, 140), optimal control settings is determined and submitted to the respective production controllers (115, 125, 145). The optimal control settings are determined based on the rotor activity pattern and on aerodynamic performance data (210). The aerodynamic performance data (210) depends on the rotor activity pattern. When the respective rotor is operating at a constant tip speed ratio, the constant tip speed ratio is dependent on the rotor activity pattern.
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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：WO2021121500A1
公开(公告)日：2021-06-24
申请号：PCT/DK2020/050351
申请日：2020-12-11
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NETO, Julio Xavier Vianna , BAUN, Torben Ladegaard , NEUBAUER, Jesper Lykkegaard , JØRGENSEN, Brian
IPC: F03D1/02 , F03D13/10 , F05B2240/917
Abstract: A method of preventing nacelle drop in a multiple rotor (MR) wind turbine during mounting of a nacelle to the MR wind turbine, the MR wind turbine comprising a tower (2) extending in an upwards direction, a load carrying structure (3, 4) forming a first section (3) and a second section (4), the first and second sections extending in different directions away from the tower (2). To reduce the impact of a nacelle drop and therefore an abrupt change in the loading of the load carrying structure, the method comprises attaching at least one tension wire (20, 30, 60, 61) to one of the first section (3) and second section (4) such that vertical movement of an interface portion of the first section is reduced by the at least one tension wire, mounting the nacelle (5) to the first section (3), and subsequently removing the at least one tension wire (20, 30, 60, 61).
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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：WO2021180283A1
公开(公告)日：2021-09-16
申请号：PCT/DK2021/050071
申请日：2021-03-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： DALSGAARD, Søren , WOLLESEN, Anders Yde , SØRENSEN, Kim Hylling , NETO, Julio Xavier Vianna , SAMSON, Jonathan
Abstract: A method for controlling a multirotor wind turbine (1) comprising two or more energy generating units (5) is disclosed. At least one load carrying structure (3) is connected to a foundation or to a tower (2) via a yaw arrangement (4), and the load carrying structure (3) carries the at least two energy generating units (5). A requirement to a change in operation of at least a first of the energy generating units (5) is detected. Control commands for the first energy generating unit (5) and for at least a second energy generating unit (5), mounted on the same load carrying structure (3), are generated. The control commands cause the required change in operation, and the control commands cause coordinated operation of at least the first energy generating unit (5) and the second energy generating unit (5). The control commands are generated under the constraint that a yaw moment (9) of the yaw arrangement (4) is maintained below a predefined threshold level.
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