公开(公告)号：US20210246879A1

公开(公告)日：2021-08-12

申请号：US16973859

申请日：2019-06-26

Applicant: MHI Vestas Offshore Wind A/S

Inventor： Peter Sigfred Mortensen

IPC: F03D13/20 ,  F03D80/00

Abstract: The present invention relates to an impact damper assembly for damping oscillations of an associated tower structure, the impact damper assembly comprising one or more impact dampers each comprising a suspension arrangement adapted to be suspended between at least two vertically distanced suspension positions of the tower structure, an impact mass secured to the suspension arrangement, the impact mass being adapted to collide with the tower structure in response to movements thereof, and a tensioner adapted to apply a defined tension to the suspension arrangement in order to adjust the damping characteristics of the impact damper. The present invention further relates to a wind turbine tower having an impact damper assembly attached thereto and a method for damping tower structure oscillations using an impact damper assembly.

公开(公告)号：US11028829B2

公开(公告)日：2021-06-08

申请号：US16461574

申请日：2017-11-17

Applicant: MHI VESTAS OFFSHORE WIND A/S

Inventor： Hideyasu Fujioka

IPC: F03D7/02 ,  F03D17/00 ,  F03D1/00 ,  F03D7/04 ,  G01F22/00 ,  G01W1/14

Abstract: There is presented a method (320) for controlling a wind turbine (100), wherein said wind turbine comprises a wind turbine rotor (102) with one or more blades (103), wherein the wind turbine has a rated angular rotation speed (214) of the wind turbine rotor, said method comprising providing (322) an estimated drop size (324) of rain drops impinging on the one or more blades, determining (326) whether an entry criterion for operation according to a reduced mode is fulfilled, wherein said determining is based at least partially on the estimated drop size (324), controlling (328) the wind turbine according to the reduced mode if the entry criterion is fulfilled, wherein in the reduced mode an angular rotation speed of the wind turbine rotor is limited below an angular rotation speed threshold (216), wherein the angular rotation speed threshold is smaller than the rated angular rotation speed of the wind turbine.

公开(公告)号：US11028827B2

公开(公告)日：2021-06-08

申请号：US16461591

申请日：2017-11-17

Applicant: MHI VESTAS OFFSHORE WIND A/S

Inventor： Hideyasu Fujioka ,  Alex Pericleous

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

Abstract: There is presented a method (320) for controlling a wind turbine (100), wherein said wind turbine comprises a wind turbine rotor (102) with one or more blades (103), wherein the wind turbine has a rated angular rotation speed (214) of the wind turbine rotor, said method comprising obtaining (322) information (323) on ambient conditions, determining, based on said information, if an erosion criterion is fulfilled, controlling (328) the wind turbine according to an extended mode if the erosion criterion is fulfilled, wherein in the extended mode an angular rotation speed of the wind turbine rotor is allowed to exceed the rated angular rotation speed (214).

公开(公告)号：US10897137B2

公开(公告)日：2021-01-19

申请号：US16345467

申请日：2017-10-26

Applicant: MHI Vestas Offshore Wind A/S

Inventor： Tusitha Abeyasekera ,  Salvador Año-Villalba ,  Soledad Bernal Pérez ,  Ramon Blasco-Gimenez

IPC: H02J3/38 ,  F03D7/02 ,  H02J3/18 ,  H02J3/36 ,  F03D9/25

Abstract: Embodiments herein describe operating a first wind turbine using an auxiliary control system when a high-voltage link coupling a wind park to a grid is not functioning. When using the auxiliary control system, the first wind turbine provides power to a local AC grid which can be used to power auxiliary system in a second wind turbine while the second wind turbine is shutdown. However, when the high-voltage link is functional, the first and second wind turbines provide power to the high-voltage link using a primary control system.

公开(公告)号：US20200011300A1

公开(公告)日：2020-01-09

申请号：US16484568

申请日：2017-03-21

Applicant: MHI VESTAS OFFSHORE WIND A/S

Inventor： Hideyasu FUJIOKA ,  Masayuki HIRAISHI

IPC: F03D9/25 ,  F03D3/06 ,  H02K7/18

Abstract: A wind turbine blade includes: a blade body portion; and an anti-erosion layer disposed so as to cover a surface of the blade body portion partially. A center point of the anti-erosion layer in a circumferential length direction along a blade profile in a cross section orthogonal to a blade spanwise direction is shifted toward a pressure side from a leading edge of the blade body portion, at least in a part of an extension range of the anti-erosion layer in the blade spanwise direction.

公开(公告)号：US10041469B2

公开(公告)日：2018-08-07

申请号：US14760903

申请日：2013-01-21

Applicant: MHI VESTAS OFFSHORE WIND A/S

Inventor： Jun Hashimoto

IPC: B63B1/04 ,  B63B35/44 ,  F03D7/02 ,  F03D1/00 ,  F03D9/32 ,  F03D9/25 ,  B63B1/10 ,  B63B21/50 ,  F03D7/04 ,  F03D13/25 ,  F03D13/10 ,  F03D13/40 ,  F03D80/50 ,  F03D9/28 ,  B63B39/03 ,  B63B9/06 ,  B63B1/12

CPC classification number: F03D80/50 ,  B63B1/107 ,  B63B21/50 ,  B63B35/44 ,  B63B39/03 ,  B63B2001/044 ,  B63B2001/128 ,  B63B2021/505 ,  B63B2035/446 ,  F03D7/0264 ,  F03D7/042 ,  F03D9/25 ,  F03D9/255 ,  F03D9/28 ,  F03D9/32 ,  F03D13/10 ,  F03D13/25 ,  F03D13/40 ,  F05B2240/93 ,  F05B2240/95 ,  Y02E10/725 ,  Y02E10/727

Abstract: A method of maintaining a power generating apparatus includes a separation step of separating a mooring line and a cable from a floating body of a first floating-body type wind turbine power generating apparatus including a maintenance-target section; a retention step of retaining the mooring line and the cable by a floating-body structure, after the separation step; a first transfer step of transferring the first floating-body type wind turbine power generating apparatus from the mooring position, after the separation step; a second transfer step of transferring a second floating-body type wind turbine power generating apparatus having no maintenance-target section to the mooring position; and a connection step of detaching the mooring line and the cable from the floating-body structure and connecting the mooring line and the cable to the second floating-body type wind turbine power generating apparatus, after the second transfer step.

公开(公告)号：US20180199564A1

公开(公告)日：2018-07-19

申请号：US15744261

申请日：2016-07-11

Applicant: MHI Vestas Offshore Wind A/S

Inventor： John Amundsen ,  Anders Vejby ,  Chris Spruce

IPC: A01M29/32 ,  F03D13/20 ,  F03D80/60

CPC classification number: A01M29/32 ,  F03D13/20 ,  F03D80/60 ,  F05B2260/201 ,  F05B2260/64 ,  F05B2280/10 ,  Y02E10/728

Abstract: The invention relates to a cooling panel assembly (2) for a wind turbine tower (1). It is arranged to be mounted on such a tower (1) on a section thereof as seen in the circumferential direction. The cooling panel assembly (2) includes at least one cooling panel (2a,2b). According to the invention, the cooling panel assembly (2) includes deflector means (6) mounted at the top of the at least one cooling panel (2a, 2b) such that the deflector means (6) shields the cooling panel assembly (2) from above. The deflector means (6) has substantially the same circumferential extension or more as the other parts of the cooling panel assembly (2). The invention also relates to a wind turbine tower (1) provided with at least one such cooling panel assembly (2).

公开(公告)号：US20170370346A1

公开(公告)日：2017-12-28

申请号：US15539281

申请日：2015-12-21

Applicant: MHI Vestas Offshore Wind A/S

Inventor： Adrian BOTWRIGHT ,  Mark URSELL-SMITH ,  Stefan MAROTI

IPC: F03D13/40 ,  B63B25/00 ,  B63B35/00

CPC classification number: F03D13/40 ,  B63B25/00 ,  B63B35/003 ,  F05B2230/6102 ,  F05B2240/95 ,  F05B2260/02 ,  Y02E10/721 ,  Y02E10/727 ,  Y02P70/523

Abstract: A method is provided for handling wind turbine blades aboard a vessel, the method including providing on the vessel a blade rack assembly configured to accommodate more than one blade, the rack assembly having at least a root rack and a tip rack, and the root rack and tip rack defining between them a blade support plane. The method also includes providing a jack acting between the vessel and one of the root or tip rack; and raising or lowering one of the root or tip rack aboard the vessel by the jack to thereby move the blade support plane through an elevation angle θ. A jack assembly on a wind turbine installation vessel and an offshore wind turbine installation vessel are also provided, each capable of raising or lowering a rack of wind turbine blade root or tip support frame elements.

公开(公告)号：US09822767B2

公开(公告)日：2017-11-21

申请号：US14646584

申请日：2012-11-30

Applicant: MHI VESTAS OFFSHORE WIND A/S

Inventor： Tomohiro Numajiri

IPC: F03D13/25 ,  F03D80/00 ,  F03D80/50 ,  F03D80/80 ,  B63B35/44 ,  B63B39/06 ,  E02D27/42 ,  B63B21/50 ,  B63B1/04

CPC classification number: F03D13/25 ,  B63B21/50 ,  B63B35/44 ,  B63B39/06 ,  B63B2001/044 ,  B63B2021/505 ,  B63B2035/446 ,  E02D27/425 ,  F03D9/25 ,  F03D80/00 ,  F03D80/50 ,  F03D80/55 ,  F03D80/82 ,  F03D80/88 ,  F05B2230/60 ,  F05B2230/6102 ,  F05B2230/70 ,  F05B2240/912 ,  F05B2240/93 ,  F05B2240/95 ,  F05B2240/97 ,  Y02E10/725 ,  Y02E10/726 ,  Y02E10/727 ,  Y02E10/728 ,  Y02P70/523

Abstract: A floating-body type wind turbine power generating apparatus includes a floating body floating on a water surface; and a wind turbine disposed on the floating body and configured so that at least a part of the wind turbine is submersible. The wind turbine includes: at least one blade; a hub to which the blade is mounted; a tower erected on the floating body; a nacelle disposed on the tower; a first electrical device disposed inside the hub or the nacelle; and a second electrical device connected to the first electrical device via a cable and configured to be movable relative to the tower in a vertical direction so as not be submerged upon submergence of the wind turbine.

公开(公告)号：US20170241410A1

公开(公告)日：2017-08-24

申请号：US15515854

申请日：2015-09-16

Applicant: MHI Vestas Offshore Wind A/S

Inventor： Morten Frost Hansen ,  Peter Nordlyng ,  Mark Ursell-Smith ,  Kim Christensen ,  Ken Nakayama

IPC: F03D80/80 ,  F03D13/10 ,  E04H12/34 ,  F03D13/25

CPC classification number: F03D80/82 ,  E04H12/34 ,  F03D9/25 ,  F03D13/10 ,  F03D13/20 ,  F03D13/25 ,  F03D80/88 ,  F05B2240/14 ,  F05B2240/912 ,  F05B2240/95 ,  F05B2260/845 ,  F05B2270/107 ,  Y02B10/30 ,  Y02E10/725 ,  Y02E10/727 ,  Y02E10/728

Abstract: An offshore wind turbine generator comprises a tower 1 and a platform 2. The tower 1 is provided with a side door 4 accessed from the platform 2 using a stairway 5 leading to an upper platform 6. The upper platform 6 is formed from the upper surface of a cabinet 7 which houses a diesel backup generator. Both the backup generator and the cabinet 7 are mounted to the tower 1 by bolts, such that the cabinet and backup generator are fully supported by the tower 1. A diesel fuel tank 12 is also mounted to the tower 1 by bolts. The fuel tank supplies diesel fuel to the backup generator.