IDENTIFYING RECURRENT FREE-FLOW WIND DISTURBANCES ASSOCIATED WITH A WIND TURBINE

    公开(公告)号:US20240401571A1

    公开(公告)日:2024-12-05

    申请号:US18686367

    申请日:2022-08-25

    Abstract: The invention provides a method of identifying recurrent free-flow wind disturbances associated with a wind turbine. The method comprises monitoring a signal indicative of a parameter associated with operation of the wind turbine, determining an expected signal of the parameter based on the monitored signal, determining a difference between values of the monitored signal and the determined expected signal, and correlating the determined differences with yaw position of a nacelle of the wind turbine. The method includes determining, based on the correlated differences, unexpected values of the parameter for different yaw positions, and identifying, based on a frequency of occurrence of the determined unexpected values, a recurrent free-flow wind disturbance associated with a yaw position of the nacelle.

    Method for handling a wind turbine blade

    公开(公告)号:US12129826B2

    公开(公告)日:2024-10-29

    申请号:US17795724

    申请日:2021-03-10

    CPC classification number: F03D13/40 B63B27/10 F03D80/50

    Abstract: The invention provides a method for handling a blade (11) for a horizontal axis wind turbine (1), the blade extending longitudinally between a blade root (111) and a blade tip (112), the method comprising—supporting the blade (11) with one or more cranes (3), moving, by means of the one or more cranes (3), the supported blade (11) so as to be placed on one or more first support elements (4111) of a first support device (411) and on one or more second support elements (4121) of a second support device (412), removing the support of the one or more cranes (3), so as for the blade (11) to be supported by the one or more first support elements (4111) and the one or more second support elements (4121) on which the blade is placed, the second support device (412) being located between the blade root (111) and the blade tip (112), and the first support device (411) being, compared to the second support device, located closer to the blade root, moving the first and second support devices (411, 412) so as to move the blade (11) supported by the first and second support elements (4111, 4121), and/or moving a third support device (413), so that the third support device (413) assumes a support position between the second support device (412) and the blade tip (112), and removing, while the third support device (413) is in the support position, the support of the one or more second support elements (4121) so as for the blade (11) to be supported by one or more third support elements (4131) of the third support device, and by the one or more first support elements (4111).

    Method of manufacturing a wind turbine blade having an inclined root end surface

    公开(公告)号:US12128586B2

    公开(公告)日:2024-10-29

    申请号:US17766856

    申请日:2020-10-06

    Abstract: In a first aspect of the invention there is provided a method of manufacturing a wind turbine blade. The method comprises providing a mould for a shell of the wind turbine blade, the mould extending in a longitudinal direction from a root end to a tip end; providing a plurality of elongated root inserts; providing a root plate with a plurality of arcuately arranged connection points; at the connection points, connecting the root inserts to the root plate, such that the connected root inserts jointly form a contour of a portion of a root section of the wind turbine blade; and positioning the root plate relative to the mould in order to place the contour formed by the root inserts at least partially into the mould. The method further comprises providing a spacer having a decreasing thickness, and the connecting of the root inserts to the root plate comprises providing the spacer between the root inserts and the root plate.

    Virtual machine testing of electrical machines using physical domain performance signatures

    公开(公告)号:US12117482B2

    公开(公告)日:2024-10-15

    申请号:US17921136

    申请日:2021-04-28

    Inventor: Peter Mongeau

    CPC classification number: G01R31/2872 G01R31/31917

    Abstract: Systems, methods, and computer program products for virtual machine testing of an electric machine. A test signature including parameter values measured during one or more static tests of the electric machine is compared to a reference signature generated by performing a similar series of static tests on a reference machine. The reference machine is then validated by subjecting the reference machine to full-load dynamic testing. The test and reference signatures may include a plurality of parameters each characterizing a physical property of the respective machines in one or more physical domains. The parameters are selected so that the electric machine can be qualified for operation in the field by comparing the test signature to the reference signature, thereby avoiding the need for full-load dynamic testing of the electric machine.

    Assembling or disassembling a gear assembly of a wind turbine

    公开(公告)号:US12116977B2

    公开(公告)日:2024-10-15

    申请号:US17768333

    申请日:2020-10-02

    Abstract: A method of assembling or disassembling a gear assembly (20) of a wind turbine (10), the gear assembly (20) comprising a first helical gear (28) and a second helical gear (24) configured for rotatable engagement with the first helical gear (28), the method comprising transmitting a control signal to cause: axial movement of the first helical gear (28) at an axial speed relative to the second helical gear (24) along a rotational axis of the first helical gear (28): and, rotational movement of the first helical gear (28) at a first rotation speed relative to the second helical gear (24) about the rotational axis of the first helical gear (28), wherein one of the axial speed and the first rotation speed is a predetermined speed, and the other of the axial speed and first rotation speed is determined in dependence on the predetermined speed, and wherein the control signal causes the axial and rotational movement of the first helical gear (28) to occur simultaneously to engage or disengage the first and second helical gears (28, 24).

    POWERTRAIN ASSEMBLY FOR A WIND TURBINE
    18.
    发明公开

    公开(公告)号:US20240318636A1

    公开(公告)日:2024-09-26

    申请号:US18578045

    申请日:2022-03-10

    Abstract: A wind turbine powertrain assembly including a gearbox coupled to an electrical power generator for a wind turbine. The power generator comprises a stator at a radially outward position and a rotor in a radially inward position, wherein the rotor comprises a cylindrical field structure that is configured to rotate about a generator rotor axis, and wherein the rotor is configured to define a central hollow portion. The rotor further comprises a rotor support frame connected to and structurally supporting the cylindrical field structure, wherein the rotor support frame comprises: a rotor connection flange attaching the rotor support frame to the cylindrical field structure, a gearbox connecting flange connecting the rotor support frame to an output drive shaft of the gearbox, and a transition section extending between the rotor connection flange and the gearbox connection flange, the transition section defined at least in part by one or more stepping regions, the or each stepping region shaped to define a surface that is inclined at an angle of less than 30 degrees to the rotor axis. Advantageously, the stepping regions provide an integrated platform inside the hollow portion on which service personnel can stand to work inside the generator.

    TRANSITION PIECE FOR A HYBRID WIND TURBINE TOWER AND METHOD FOR ASSEMBLING SAME

    公开(公告)号:US20240318635A1

    公开(公告)日:2024-09-26

    申请号:US18572869

    申请日:2022-06-24

    CPC classification number: F03D13/205 F03D13/112 F05B2230/61 F05B2240/912

    Abstract: A hybrid wind turbine tower (12) includes at least one polygonal tower section (24) with a polygonal cross-sectional profile connected to a foundation (28), at least one tubular tower section (26) with a circular cross-sectional profile for connection to the nacelle (14), and a transition piece (40) disposed between the at least one polygonal tower section (24) and the at least one tubular tower section (26). The transition piece (40) includes an upper portion having a circular cross-sectional profile connected to a lower end of the at least one tubular tower section (26), and a lower portion having a polygonal cross-sectional profile connected to an upper end of the at least one polygonal tower section (24). A method for assembling a hybrid wind turbine tower (12) is also disclosed.

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