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公开(公告)号：US20240084785A1
公开(公告)日：2024-03-14
申请号：US18271430
申请日：2022-01-09
CPC分类号： F03D80/502 , F03D13/10
摘要： The present disclosure relates to wind turbine blades, devices and methods for reducing vibrations in wind turbines, particularly during installation. In an aspect, a device for mitigating vibrations of a blade of a wind turbine during standstill is provided. The device comprises a flexible base having a first connection area and a second connection area, the first connection area being configured to be attached to the second connection area to form a removable attachment. The device further comprises one or more airflow modifying elements attached to the flexible base. The flexible base is configured to fit around a portion of the rotor blade such that the removable attachment is positioned substantially at a leading edge of the blade. The present disclosure further relates to methods for mitigating vibrations in a parked wind turbine blade and to sleeves for wrapping around a portion of a wind turbine blade.
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公开(公告)号：US11552538B2
公开(公告)日：2023-01-10
申请号：US16937249
申请日：2020-07-23
IPC分类号： H01F7/06 , H02K15/00 , F03D9/25 , F03D15/00 , F03D80/60 , H02K1/18 , H02K1/20 , H02K7/18 , H02K21/14
摘要： In a first aspect, a method for removing an electromagnetic module from an electrical machine is provided. The electrical machine comprises a plurality of electromagnetic modules having an electromagnetic material. The electromagnetic modules comprise base and a support extending from the base and supporting the electromagnetic material. The base comprises a bottom surface and a first side surface. The first side surface comprises an axially extending groove defining a cooling channel with an axially extending groove of a first side surface of an adjacent electromagnetic module. The method comprises inserting a rod in a cooling channel formed by the groove of the electromagnetic module to be removed and a groove of an adjacent electromagnetic module; releasing the electromagnetic module to be removed from a structure of the electrical machine; and sliding the electromagnetic module to be removed along the rod.
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公开(公告)号：US11499532B2
公开(公告)日：2022-11-15
申请号：US16940790
申请日：2020-07-28
摘要： A nacelle assembly for a wind turbine is connected to a wind turbine tower through a yaw system and includes a front region coupled to a rotor having a rotor hub and at least one rotor blade. The nacelle assembly includes a nacelle having a cover structure to house wind turbine components and an add-on wind flow deflector system that is coupled to an outside of the cover structure. The wind flow deflector system guides wind flowing to the nacelle for reducing a drag of the nacelle when a wind direction is misaligned with respect to the longitudinal wind direction in a yaw system failure event.
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公开(公告)号：US20210270245A1
公开(公告)日：2021-09-02
申请号：US17184662
申请日：2021-02-25
IPC分类号： F03D80/50
摘要： The disclosure relates to a nacelle configured to be mounted on top of a wind turbine tower, comprising a nacelle hatch for covering a nacelle opening at a side of the nacelle facing a wind turbine hub. The nacelle hatch is completely supported by the nacelle when the hatch is closed, and the nacelle hatch forms a passageway to an opening in the wind turbine hub at a side of the wind turbine hub facing the nacelle when the hatch is opened. The passageway comprises a first side structure at least partially obstructing a downwards view on a first side of the hub and a second side structure at least partially obstructing a downwards view on a second side of the hub, the second side being opposite to the first side. The present disclosure further relates to wind turbines and to methods for accessing a wind turbine hub from a nacelle.
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公开(公告)号：US10823148B2
公开(公告)日：2020-11-03
申请号：US16520469
申请日：2019-07-24
IPC分类号： F03D9/25 , H02P9/34 , F03D7/02 , H02P101/15
摘要： A wind turbine is provided. The wind turbine comprises: a generator (162), one or more power converters (20) arranged between the generator and a point of connection to a main transformer (5), and one or more wind turbine electrical components (8, 9, 10). The main transformer (5) is configured to connect a busbar (60) to an auxiliary wind turbine transformer, wherein the busbar is configured to receive electrical power from an electrical grid with a main voltage. The wind turbine electrical components are configured to be connected to the auxiliary wind turbine transformer (6), wherein a selection of the wind turbine electrical components is further configured to be connected to the busbar through a service voltage transformer (7) when the main transformer (5) is disconnected from the busbar. Systems comprising such wind turbines are also provided. Methods for connecting a wind turbine main transformer to a grid are also provided.
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公开(公告)号：US12070840B2
公开(公告)日：2024-08-27
申请号：US17207974
申请日：2021-03-22
IPC分类号： B25B5/06 , B25B1/18 , B25B5/00 , B25B5/10 , B25B5/14 , B25H1/00 , B25H1/10 , B25H1/16 , F03D13/00 , F03D80/50 , G01R31/34
CPC分类号： B25B5/06 , B25B1/18 , B25B5/003 , B25B5/006 , B25B5/10 , B25B5/14 , B25H1/00 , B25H1/0007 , B25H1/0021 , B25H1/0078 , B25H1/10 , B25H1/16 , F03D13/00 , F03D80/50 , G01R31/343 , F05B2230/61 , F05B2260/30
摘要： The disclosure relates to methods and tools for handling a component, the tools (10) comprising a first clamp seat (12) for receiving a first surface of the component and a second clamp seat (14, 16) for receiving a second surface of the component, the second surface being opposite to the first surface. The tool further comprises an actuator (45) for moving the first clamp seat to clamp the component between the first clamp seat and the second clamp seat with a predetermined clamping force, and an electric motor (40) for driving the actuator (45). The tool (10) further comprises a control configured to determine currents in the electric motor and to control the electric motor to provide the predetermined clamping force based on the determined currents. Also methods for determining a desired current level in an electric motor driving an actuator for clamping a component and methods for controlling a clamping force in a tool are provided.
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公开(公告)号：US20230120790A1
公开(公告)日：2023-04-20
申请号：US18081995
申请日：2022-12-15
摘要： In a first aspect, a method for removing an electromagnetic module from an electrical machine is provided. The electrical machine comprises a plurality of electromagnetic modules having an electromagnetic material. The electromagnetic modules comprise base and a support extending from the base and supporting the electromagnetic material. The base comprises a bottom surface and a first side surface. The first side surface comprises an axially extending groove defining a cooling channel with an axially extending groove of a first side surface of an adjacent electromagnetic module. The method comprises inserting a rod in a cooling channel formed by the groove of the electromagnetic module to be removed and a groove of an adjacent electromagnetic module; releasing the electromagnetic module to be removed from a structure of the electrical machine; and sliding the electromagnetic module to be removed along the rod.
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8.发明申请公开(公告)号：US20220065222A1
公开(公告)日：2022-03-03
申请号：US17463984
申请日：2021-09-01
发明人： Peter Gauchel , Jacob Johannes Nies
摘要： A method (1000-1004) for operating a wind turbine (10, 11) including a drive train (64) including a generator (42) and a rotor shaft (44) mechanically connected with the generator (42) and having an axis (30) of rotation, and a rotor (18) having rotor blades (22-22c). The rotor (18) is mechanically connected with the rotor shaft (44) and rotatable about the axis (30) of rotation. The method (1000-1004) includes determining (1100) that the generator (42) is not operating in a power generating mode, and operating (1200) the rotor (18) to move around a predefined desired angular orientation (αdes) with respect to the axis (30) of rotation in an alternating fashion.
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公开(公告)号：US11098696B2
公开(公告)日：2021-08-24
申请号：US16555201
申请日：2019-08-29
IPC分类号： F03D9/25 , H02P9/00 , H02P101/15
摘要： In a first aspect, a system for rotating an unbalanced direct drive wind turbine is provided. The system includes an auxiliary converter and a power source coupled to the auxiliary converter, wherein the auxiliary converter is configured to supply a current to the wind turbine generator for generating a torque to rotate the hub. In a further aspect, a method of rotating an unbalanced hub of a direct drive wind turbine is provided. In a yet further aspect, a method of installing a blade in a hub of a direct drive wind turbine is provided.
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公开(公告)号：US20210047797A1
公开(公告)日：2021-02-18
申请号：US16986538
申请日：2020-08-06
摘要： A method for retrofitting a wind turbine foundation is provided. The foundation comprises a first substantially elongated pile (31) in the ground. The method further comprises: arranging a lower end of an elongated channel (41) of a second substantially elongated pile (40) around the first pile (31), wherein the elongated channel (41) extends substantially along a longitudinal direction of the second pile (40), wherein the channel (41) is configured to receive at least a portion of the first pile. The method further comprises lowering the second pile (40) such that the elongated channel (41) surrounds at least a portion of the first pile (31). Finally, the second pile (40) is driven into the ground (35).
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