中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

47 records (took 0.017 seconds)

    PROVIDING AUXILIARY POWER USING OFFSHORE WIND TURBINES
    1.
    发明申请
    PROVIDING AUXILIARY POWER USING OFFSHORE WIND TURBINES 审中-公开

    公开(公告)号：WO2021023356A1

    公开(公告)日：2021-02-11

    申请号：PCT/DK2020/050228

    申请日：2020-08-06

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： ABEYASEKERA, Tusitha

    IPC: F03D7/02 ,  F03D9/25

    Abstract: Embodiments herein describe operating wind turbines in an offshore park to provide auxiliary power to a local AC grid or to an onshore grid during a grid malfunction. In one embodiment, the offshore park is coupled via a HVDC link to an onshore grid. When the HVDC link is down, a substation in the park includes a backup generator for creating a weak grid for powering auxiliary systems in a pilot turbine. The wind turbines in the park can switch to an auxiliary control system help power the auxiliary systems in the substation and in other turbines. In another embodiment, the offshore park is AC coupled to an onshore grid using a transformer in the substation. The wind turbines can participate in a brown or black start following a grid fault by switching to operating using the auxiliary control system.

    WIND TURBINE TOWER TRANSITION PIECE
    2.
    发明申请
    WIND TURBINE TOWER TRANSITION PIECE 审中-公开

    公开(公告)号：WO2020115180A1

    公开(公告)日：2020-06-11

    申请号：PCT/EP2019/083767

    申请日：2019-12-05

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： HANSEN, Thor Thiim ,  FUGLSBJERG, Christian ,  MICHALUK, Slawomir ,  SØE, Jeppe

    IPC: F03D13/20 ,  F03D80/80 ,  F03D9/25

    Abstract: A transition piece (140) for a wind turbine tower (110) is provided, that is configured to be installed on a tower foundation (111) and to carry a tower piece (113). It comprises a high voltage joint (10) with grid input and output terminals (11, 12) and WTG connecting input and output terminals (14, 13). The grid input terminal (11) is configured for receiving and connecting to an array cable (21) from a power grid (20). The WTG connecting output terminal (13) is operatively connected to the grid input terminal (11) for receiving and connecting to an input cable (23) leading to a switchgear (30). The WTG connecting input terminal (14) is configured for receiving and connecting to an output cable (24) from the switchgear (30). The grid output terminal (12) is operatively connected to the WTG connecting input terminal (14) for receiving and connecting to an array cable (22) leading to the power grid (20). Further, installation, testing, connecting and maintenance methods taking advantage of the high voltage joint (10) are provided.

    PITCH CONTROL OF WIND TURBINE BLADES IN A STANDBY MODE
    3.
    发明申请
    PITCH CONTROL OF WIND TURBINE BLADES IN A STANDBY MODE 审中-公开

    公开(公告)号：WO2020094752A1

    公开(公告)日：2020-05-14

    申请号：PCT/EP2019/080459

    申请日：2019-11-07

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： LUND, Kasper Bitsch ,  CAPONETTI, Fabio ,  BRANDAO MARTINS, Andre

    IPC: F03D7/02

    Abstract: The present disclosure relates to a method of operating a wind turbine generator (WTG) comprising a pitch control system, the method comprising: a) operating the WTG in a normal mode while the WTG is connected to an external grid; b) controlling the pitch angle of the blades using a normal pitch control mode while the WTG is operating in the normal mode; c) detecting a grid loss; d) operating the WTG in a standby mode during the grid loss; and e) controlling the pitch angle of the blades in dependence on a monitored speed parameter of the WTG using a standby pitch control mode different to the normal pitch control mode while the WTG is operating in the standby mode, wherein the standby pitch control mode is less responsive than the normal pitch control mode such that the power consumption of the pitch control system is reduced when the WTG is operating in the standby mode..

    CONTROLLING WIND TURBINE BASED ON RAIN DROP SIZE
    5.
    发明申请
    CONTROLLING WIND TURBINE BASED ON RAIN DROP SIZE 审中-公开

    公开(公告)号：WO2018091056A1

    公开(公告)日：2018-05-24

    申请号：PCT/DK2017/050379

    申请日：2017-11-17

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： FUJIOKA, Hideyasu

    IPC: F03D7/02 ,  F03D7/04

    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.

    WIND TURBINE CONTROL METHOD AND SYSTEM
    6.
    发明申请
    WIND TURBINE CONTROL METHOD AND SYSTEM 审中-公开
    风力涡轮机控制方法和系统

    公开(公告)号：WO2018028753A1

    公开(公告)日：2018-02-15

    申请号：PCT/DK2017/050200

    申请日：2017-06-15

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： HALD, Tue ,  JØRGENSEN, Henrik Bæk ,  PERICLEOUS, Alex

    IPC: F03D7/04 ,  F03D7/02 ,  F03D9/25 ,  H02J3/38

    Abstract: A method for controlling a wind power plant including a plurality of wind turbines that provide output power through a transmission line arrangement, wherein each wind turbine in the wind power plant has a nominal power limit setting. The method comprises determining spare capacity on the transmission line arrangement; and configuring one or more of the wind turbines in dependence on the determined spare capacity, such that said wind turbines are operable to exceed their respective nominal power limit setting in order to exploit the spare capacity on the transmission line arrangement. Aspects of the invention also relate to a power plant controller configured to implement the method.

    Abstract translation: 一种用于控制包括多个风力涡轮机的风力发电设备的方法，所述风力涡轮机通过传输线布置提供输出功率，其中所述风力发电站中的每个风力涡轮机具有标称功率限制设置。 该方法包括确定传输线路布置上的剩余容量; 以及根据所确定的备用容量配置一个或多个风力涡轮机，使得所述风力涡轮机可操作以超过它们各自的额定功率限制设置，以便利用传输线布置上的备用容量。 本发明的各方面还涉及配置成实现该方法的发电站控制器。

    WIND-TURBINE TOWER FACILITY AND METHOD OF ASSEMBLING SAME
    9.
    发明申请
    WIND-TURBINE TOWER FACILITY AND METHOD OF ASSEMBLING SAME 审中-公开

    公开(公告)号：WO2021078884A1

    公开(公告)日：2021-04-29

    申请号：PCT/EP2020/079796

    申请日：2020-10-22

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： FUJIOKA, Hideyasu ,  MORTENSEN, Peter Sigfred

    IPC: F03D13/25 ,  F03D13/20

    Abstract: A wind-turbine tower facility includes a monopile, a transition piece foundation, and a tower disposed on top of the foundation. The tower includes a first cylindrical part and a first outer flange protruding from a lower end of the first cylindrical part toward an outer side of the tower. The foundation includes a second cylindrical part and a second outer flange protruding from an upper end of the second cylindrical part toward an outer side of the foundation. The tower and the foundation are connected by a plurality of stud bolts passing through the first outer flange and the second outer flange. Below the second outer flange, a protruding part is protruding from the second cylindrical part to under the second outer flange.

    WIND TURBINE WITH HELIHOIST AND MOVABLE COOLER
    10.
    发明申请
    WIND TURBINE WITH HELIHOIST AND MOVABLE COOLER 审中-公开

    公开(公告)号：WO2020136102A1

    公开(公告)日：2020-07-02

    申请号：PCT/EP2019/086523

    申请日：2019-12-20

    Applicant: MHI VESTAS OFFSHORE WIND A/S

    Inventor： MØLLER, Lars Laursen

    IPC: F03D13/40

    Abstract: A wind turbine (10) includes a tower (12) and a nacelle (16) disposed on the tower (12) and includes a nacelle roof (34). The wind turbine (10) further includes a rotor (14) including a hub (18) and at least one wind turbine blade (20). The rotor (14) is operatively coupled to a generator (26). The wind turbine (10) also includes a helihoist (32) affixed to the nacelle roof (34). The helihoist (32) has a platform (36) with a first working surface, wherein the platform (36) is configured to be expandable to form a second working surface, wherein the second working surface is greater than the first working surface.

Patent Agency Ranking