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.

公开(公告)号：WO2021093924A1

公开(公告)日：2021-05-20

申请号：PCT/DK2020/050305

申请日：2020-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, Thomas S. Bjertrup ,  DALSGAARD, Søren ,  JØRGENSEN, Brian ,  SØRENSEN, Kim Hylling

IPC: F03D1/06

Abstract: A wind turbine comprising a tower, a nacelle mounted on the tower, a hub mounted rotatably on the nacelle, a blade carrying structure connected to the hub, one or more wind turbine blades connected to the blade carrying structure via a hinge, each wind turbine blade thereby being arranged to perform pivot movements relative to the blade carrying structure between a minimum pivot angle and a maximum pivot angle, each wind turbine blade extending between an outer tip and an inner tip, wherein each wind turbine blade has an outer portion extending between the hinge and the outer tip and having a first length (L1), and inner portion extending between the hinge and the inner tip and having a second length (L2), wherein a coning angle of the blade carrying structure is larger than zero and/or a tilt angle of the rotor axis is larger than zero, and wherein a horizontal distance (L0) from the tower at a vertical position defined by a position of the hinge at tower passage to a point of connection between the blade carrying structure and the hub is equal to or less than the second length (L2).

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

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

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.

公开(公告)号：WO2021180290A1

公开(公告)日：2021-09-16

申请号：PCT/DK2021/050080

申请日：2021-03-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： FYNBO, Peter ,  BAUN, Torben Ladegaard ,  WOLLESEN, Anders Yde ,  JØRGENSEN, Brian

IPC: F03D1/02 ,  F03D13/20

Abstract: A multirotor (MR) wind turbine (1) comprising a plurality of units (5) attached to a load carrying structure (3) carried by a tower via a main yaw assembly. The units (5) are attached to the load carrying structure via a local yaw assembly which allows yawing of the unit relative to the load carrying structure. To allow easy access into the units, each unit has a defined parked position where an entrance structure into an internal space of the unit is accessible from the load carrying structure.

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).

公开(公告)号：WO2021121501A1

公开(公告)日：2021-06-24

申请号：PCT/DK2020/050352

申请日：2020-12-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： JØRGENSEN, Brian ,  DALSGAARD, Søren ,  BØTTCHER, Peter ,  NETO, Julio Xavier Vianna ,  YDE, Anders

IPC: F03D13/10 ,  F03D13/25 ,  F03D1/02 ,  F03D7/02 ,  F03D7/0296 ,  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：WO2021089097A1

公开(公告)日：2021-05-14

申请号：PCT/DK2020/050301

申请日：2020-11-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, Thomas S. Bjertrup ,  JØRGENSEN, Brian ,  SØRENSEN, Kim Hylling ,  NETO, Julio Xavier Vianna

IPC: F03D1/06 ,  F03D7/02

Abstract: A method for operating a wind turbine (1) with hinged wind turbine blades (5) is disclosed. The wind turbine (1) comprises 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 or towards a position defining maximum pivot angle. A biasing force is selected for each wind turbine blade (5) and the selected biasing force is applied to the respective wind turbine blades (5). The wind turbine (1) is operated while monitoring rotor unbalance of the wind turbine (1). In the case that the rotor unbalance exceeds a first threshold value at least one of the wind turbine blades (5) is selected, and the biasing force applied to the selected wind turbine blade(s) (5) is adjusted.

公开(公告)号：WO2020233761A1

公开(公告)日：2020-11-26

申请号：PCT/DK2020/050142

申请日：2020-05-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BAUN, Torben Ladegaard ,  HOLTEN-MØLLER, Per ,  SCHOMACKER, Jonas Lerche ,  JØRGENSEN, Brian

IPC: F03D80/50

Abstract: The invention provides a method and a wind turbine (3) comprising a crane (401), wherein the wind turbine (3) further comprises an on-site control module (411), which is connectable to a remote control unit (421) located outside of the wind turbine (3), for receiving control data from the remote control unit (421), the control module (411) further being arranged to control the crane (401) in dependence on the control data.

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.

公开(公告)号：WO2020098894A1

公开(公告)日：2020-05-22

申请号：PCT/DK2019/050347

申请日：2019-11-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BAUN, Torben Ladegaard ,  HOLTEN-MØLLER, Per ,  BØTTCHER, Peter ,  NEUBAUER, Jesper Lykkegaard ,  JØRGENSEN, Brian ,  CHRISTOFFERSEN, Leif

IPC: F03D1/02 ,  F03D13/20 ,  F03D80/50

Abstract: A logistics system for a multirotor wind turbine (1) is disclosed. The multirotor wind turbine (1) comprises two or more energy generating units (4), each mounted on an arm (3) extending from a tower (2) of the multirotor wind turbine (1). A transport system (14, 30, 31, 32, 33, 34, 36) interconnects a lower interior part of the tower (2) with each of the energy generating units (4). A plurality of transport containers (15) is connectable to the transport system (14, 30, 31, 32, 33, 34, 36) and configured to hold equipment (26) to be transported. A control unit is configured to receive information regarding contents and position of the transport containers (15), and to plan transport of the transport containers (15) via the transport system (14, 30, 31, 32, 33, 34, 36), based on a service plan for the multirotor wind turbine (1).