公开(公告)号：US20230010831A1

公开(公告)日：2023-01-12

申请号：US17782225

申请日：2020-12-11

Applicant: Vestas Wind Systems A/S

Inventor： Julio Xavier Vianna Neto ,  Brian Jørgensen ,  Søren Dalsgaard

IPC: F03D1/02 ,  B66C19/00 ,  F03D13/20

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.

公开(公告)号：US20220025866A1

公开(公告)日：2022-01-27

申请号：US17311447

申请日：2019-12-17

Applicant: Vestas Wind Systems A/S

Inventor： Søren Dalsgaard ,  Peter Bøttcher ,  Jesper Lykkegaard Neubauer ,  Anders Yde Wollesen ,  Julio Xavier Vianna Netø

IPC: F03D17/00

Abstract: A first aspect of the invention provides a method of monitoring the condition of a yaw system of a wind turbine, the wind turbine comprising a rotor, the yaw system arranged to control a yaw rotation of the rotor, the method comprising: providing design data 5 representing an expected relationship between yaw moment and yaw rotation speed; measuring a pair of parameters, the pair of parameters comprising a yaw moment parameter indicative of a yaw moment applied to the yaw system, and a yaw rotation speed parameter indicative of a yaw rotation speed caused by the yaw moment; using the design data to evaluate whether the pair of parameters deviates from the expected 10 relationship; and determining a condition of the yaw system on the basis of the evaluation.

公开(公告)号：US11384730B2

公开(公告)日：2022-07-12

申请号：US16956952

申请日：2018-12-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Søren Dalsgaard ,  Jesper Lykkegaard Neubauer ,  Kim Hylling Sørensen ,  Jacob Brøchner ,  Erik Carl Lehnskov Miranda ,  Peter Bøttcher ,  Julio Xavier Vianna Neto ,  Torben Petersen

IPC: F03D9/00 ,  H02P9/04 ,  F03D7/02 ,  F03D9/25 ,  F03D13/20 ,  F03D1/02 ,  F03D7/04

Abstract: A method for controlling a multirotor wind turbine is disclosed. A first operational state of each of the energy generating units of the wind turbine is obtained. A difference in thrust acting on at least two of the energy generating units is detected. At least one constraint parameter of the set of operational constraints is adjusted in accordance with prevailing operating conditions and in accordance with the detected difference in thrust, and a new operational state for at least one of the energy generating units is derived, based on the at least one adjusted constraint parameter, the new operational state(s) counteracting the detected difference in thrust. Finally, the wind turbine is controlled in accordance with the new operational states for the energy generating units.

公开(公告)号：US11306701B2

公开(公告)日：2022-04-19

申请号：US16954084

申请日：2018-11-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Julio Xavier Vianna Neto ,  Germán Claudio Tarnowski ,  Mads Blumensaat ,  Torben Petersen ,  Søren Dalsgaard

IPC: F03D9/00 ,  H02P9/04 ,  F03D7/02 ,  F03D9/11 ,  H02J3/32 ,  H02J3/38

Abstract: A method for controlling a wind turbine is disclosed. During full load operation, a power reference value, Pref, representing a power level to be supplied to the power grid by the wind turbine, is received, and the wind turbine is controlled in order to produce an output power which is at or near the power reference value, Pref, while maintaining a constant torque on the generator. In the case that the produced output power of the wind turbine exceeds the power reference value, Pref, excess produced energy is stored in the energy storage system, and in the case that the produced output power of the wind turbine is below the power reference value, Pref, stored energy is retrieved from the energy storage system. A power level being equal to the power reference value, Pref, is supplied to the power grid.

公开(公告)号：US20230009080A1

公开(公告)日：2023-01-12

申请号：US17782230

申请日：2020-12-11

Applicant: Vestas Wind Systems A/S

Inventor： Brian Jørgensen ,  Søren Dalsgaard ,  Peter Bøttcher ,  Julio Xavier Vianna Neto ,  Anders Yde Wollesen

IPC: F03D13/25 ,  F03D1/02 ,  F03D13/10 ,  F03D7/02

Abstract: A method and a device for dampening movement in a multiple rotor (MR) wind turbine located at sea and 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 provide efficient dampening of the movement, the method comprises tethering a first body (20) to the first section (3), the first body being at least partly submerged into the sea.

公开(公告)号：US11841005B2

公开(公告)日：2023-12-12

申请号：US17758653

申请日：2021-01-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Julio Xavier Vianna Neto ,  Søren Dalsgaard ,  Ian Couchman ,  Jon Sowman

IPC: F03D7/02 ,  F03D1/02

CPC classification number: F03D7/0296 ,  F03D1/02 ,  F03D7/0224 ,  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.

公开(公告)号：US11841000B2

公开(公告)日：2023-12-12

申请号：US17782230

申请日：2020-12-11

Applicant: Vestas Wind Systems A/S

Inventor： Brian Jørgensen ,  Søren Dalsgaard ,  Peter Bøttcher ,  Julio Xavier Vianna Neto ,  Anders Yde Wollesen

IPC: F03D13/25 ,  F03D13/10 ,  F03D1/02 ,  F03D7/02

CPC classification number: F03D13/25 ,  F03D1/02 ,  F03D7/0296 ,  F03D13/10 ,  F05B2240/37 ,  F05B2240/95 ,  F05B2260/964

Abstract: A method and a device for dampening movement in a multiple rotor (MR) wind turbine located at sea and 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 provide efficient dampening of the movement, the method comprises tethering a first body (20) to the first section (3), the first body being at least partly submerged into the sea.

公开(公告)号：US11788511B2

公开(公告)日：2023-10-17

申请号：US17299085

申请日：2019-12-17

Applicant: Vestas Wind Systems A/S

Inventor： Søren Dalsgaard ,  Peter Bøttcher ,  Jesper Lykkegaard Neubauer ,  Anders Yde Wollesen ,  Julio Xavier Vianna Netø ,  Torben Ladegaard Baun

IPC: F03D1/02 ,  F03D7/02 ,  F03D7/00 ,  F03D17/00 ,  F03D7/04

CPC classification number: F03D17/00 ,  F03D1/02 ,  F03D7/0204 ,  F03D7/046 ,  F05B2260/80 ,  F05B2260/83 ,  F05B2270/329

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.

公开(公告)号：US11746756B2

公开(公告)日：2023-09-05

申请号：US17266934

申请日：2019-07-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Søren Dalsgaard ,  Torben Ladegaard Baun ,  Keld Hammerum ,  Torben Petersen

IPC: F03D80/50 ,  F03D7/02 ,  F03D1/02

CPC classification number: F03D80/50 ,  F03D1/02 ,  F03D7/0224 ,  F03D7/0264 ,  F03D7/0276 ,  F05B2240/37 ,  F05B2260/70 ,  F05B2270/3201 ,  F05B2270/327

Abstract: A method of operating a wind turbine during a service, wherein the wind turbine comprises at least one rotor-nacelle assembly, the or each rotor-nacelle assembly comprising a rotor; the method comprising: detecting that a service is to be or is being carried out on the wind turbine; and, on detecting that a service is to be or is being carried out on the wind turbine, reducing an operating level of the or each rotor-nacelle assembly.

公开(公告)号：US20220065227A1

公开(公告)日：2022-03-03

申请号：US17299085

申请日：2019-12-17

Applicant: Vestas Wind Systems A/S

Inventor： Søren Dalsgaard ,  Peter Bøttcher ,  Jesper Lykkegaard Neubauer ,  Anders Yde Wollesen ,  Julio Xavier Vianna Netø ,  Torben Ladegaard Baun

IPC: F03D17/00 ,  F03D1/02 ,  F03D7/02 ,  F03D7/04

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.