IMPROVEMENTS RELATING TO COOLING OF ELECTRICAL GENERATORS IN WIND TURBINES

    公开(公告)号:US20220069669A1

    公开(公告)日:2022-03-03

    申请号:US17420726

    申请日:2020-01-08

    Abstract: In a first aspect of the invention there is provided a generator for a wind turbine defining a central generator axis. The generator comprises a stator support frame and an environmental conditioning module removably attached to the stator support frame. The environmental conditioning module comprises a heat exchanger and an air mover supported by a module housing. The environmental conditioning module further comprises fluid interface connections associated with the heat exchanger, the fluid interface connections being releaseably connectable to a fluid supply system associated with the heat exchanger, and electrical interface connections associated with the air blower, the electrical interface connections being releaseably connectable to an electrical supply system associated with the air mover.

    VIRTUAL MACHINE TESTING OF ELECTRICAL MACHINES USING PHYSICAL DOMAIN PERFORMANCE SIGNATURES

    公开(公告)号:US20250004040A1

    公开(公告)日:2025-01-02

    申请号:US18885819

    申请日:2024-09-16

    Inventor: Peter Mongeau

    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.

    Locking mechanism for a wind turbine generator

    公开(公告)号:US12092084B2

    公开(公告)日:2024-09-17

    申请号:US17420728

    申请日:2020-01-09

    CPC classification number: F03D80/00 H02K7/1838 F05B2260/31 H02K2213/06

    Abstract: A generator (24) for a wind turbine (1) comprises a rotor (32) with an axis of rotation, a stator and a radial and/or axial locking mechanism. The radial locking mechanism comprises a plurality of radial locks (60) with a fixed portion (70) coupled to the stator and a movable elongate portion (72) configured to move relative to the fixed portion (70) and radially with respect to the axis of the rotation to lock the stator in a radial direction. The rotor (32) may comprise at least one lock engagement feature (86) arranged at its end surface and an end shield (90) located axially outward and at least partially adjacent the end surface. The end shield (90) comprises at least one opening enabling access to the end surface of the rotor (32). The axial locking mechanism may comprise at least one axial lock (80) comprising a removable block (82) configured to partly cover the at least one opening of the end shield (90) and a rotor engagement tool (84) for engaging the removable block (82) with the at least one lock engagement feature (86).

    Relating to electrical power generators for wind turbines

    公开(公告)号:US11799357B2

    公开(公告)日:2023-10-24

    申请号:US17606473

    申请日:2020-04-03

    CPC classification number: H02K7/1838 H02K15/0006 H02K15/14

    Abstract: An electrical power generator for a wind turbine comprising: a generator housing, a stator at a radially outward position and a rotor in a radially inward position, wherein the rotor comprises a cylindrical ring structure arranged about a rotational axis, R, and defining a central hollow portion. The electrical power generator further comprises a rotor shroud attached to the generator housing and which extends about the rotational axis, R, wherein the rotor shroud includes a dome portion that extends into the central hollow portion of the rotor so as to protect the cylindrical ring structure of the rotor. Advantageously, the rotor shroud provides a tunnel-like surface that extends into the central hollow portion of the generator so as to prevent objects such as tools from contacting components of the rotor. The invention also relates to a method for 15 assembling such an electrical power generator with a rotor shroud.

    STRAY CURRENT DETECTION IN WIND TURBINE GENERATORS

    公开(公告)号:US20230204015A1

    公开(公告)日:2023-06-29

    申请号:US18113696

    申请日:2023-02-24

    CPC classification number: F03D17/00 F03D9/25 G01R15/181 F03D7/0272

    Abstract: An electrical power generating assembly for a wind turbine. The electrical power generating assembly comprises a gearbox comprising a gearbox output shaft, a generator comprising a rotor that is coupled to the gearbox output shaft; and a current measuring module located between the gearbox and the generator. The current measuring module comprises: an electrical pickup mounted to the electrical power generating assembly, wherein the electrical pickup includes an electrical contact that engages with a slip ring associated with the rotor. The current measuring module further comprises: a first current measuring device mounted with respect to the electrical pickup to detect current flowing at least through the electrical pickup; and a second current measuring device mounted with respect to the electrical pickup to detect current flowing through at least a component associated with the gearbox output shaft.

    THE MOUNTING OF STATORS IN GENERATORS FOR WIND TURBINES

    公开(公告)号:US20220263359A1

    公开(公告)日:2022-08-18

    申请号:US17619405

    申请日:2020-06-24

    Abstract: A stator mount and a tool for adjusting the position of a stator mount of a stator of a generator of a wind turbine. The stator mount comprises a support member having a plurality of elongate both holes which provide adjustability between the stator mount and the frame of a generator housing, or between separate components of the stator mount itself. The stator mount may comprise one or more adjustment devices for adjusting the position of the stator mount in use. A tool is provided which may be used to adjust the position of the stator mounts. The tool attaches to the frame of the generator and comprises one or more adjustment devices for adjusting the position of the stator in use.

    A GENERATOR ROTOR ASSEMBLY
    30.
    发明申请

    公开(公告)号:US20220069649A1

    公开(公告)日:2022-03-03

    申请号:US17420727

    申请日:2020-01-09

    Abstract: A generator rotor assembly (42) comprises a cylindrical ring structure (46) defining a central hollow portion and arranged to rotate around a rotational axis. The cylindrical ring structure (46) comprises a plurality of permanent magnet packages (48) arranged coaxially around the rotational axis, the permanent magnet packages (48) comprising a plurality of coaxially stacked ring-shaped segmented layers (80), a plurality of tie rod holes (86) and a plurality of tie rods (54). The coaxially stacked ring-shaped segmented layers (80) comprise a plurality of contiguous segment sheets (82) arranged around the rotational axis to form the ring-shaped layer, the stacked layers (80) being staggered such that segment breaks between two contiguous segment sheets (82) in one of the layers are angularly offset with respect to segment breaks between two contiguous segment sheets (82) in an adjacent layer. The tie rod holes (86) extend axially through the layers of the permanent magnet packages (48), wherein the plurality of tie rod holes (86) of adjacent permanent magnet packages (48) are complementary in size and position, such that a plurality of tie rod bores is defined. The tie rods (54) extend through respective ones of the plurality of tie rod bores.

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