WIND TURBINE YAWING SYSTEM WITH MULTIPLE MECHANICAL BRAKING LEVELS

    公开(公告)号:US20250059948A1

    公开(公告)日:2025-02-20

    申请号:US18723546

    申请日:2022-12-22

    Abstract: Systems, methods, and computer program products for controlling a yaw system of a wind turbine. The yaw system includes mechanical brakes that provide a first amount of braking torque when closed. The yaw system is configured to transition from a yawing state to a parked by brake state by closing mechanical brakes in a first subset of the mechanical brakes and opening each mechanical brake in a second subset of the mechanical brakes. The second subset provides a second amount of braking torque that is less than the first amount of braking torque. In response to detecting a rotation of the nacelle while in the parked by brake state, the yaw system is configured to transition from the parked by brake state to a parked by motor state in which yaw drives are activated to provide a counter acting torque in opposition to the detected rotation of the nacelle.

    MODULAR WIND TURBINE BLADE
    23.
    发明申请

    公开(公告)号:US20250059945A1

    公开(公告)日:2025-02-20

    申请号:US18721922

    申请日:2022-12-20

    Inventor: Stephen Randall

    Abstract: According to the present invention there is provided a modular wind turbine blade comprising first and second blade modules connectable together to form at least part of the wind turbine blade, each blade module comprising an outer shell defining a pressure side and a suction side of the wind turbine blade. The first blade module comprises a first spar cap, and the second blade module comprising a second spar cap. The first spar cap has a tapered end portion in which the thickness of the first spar cap decreases towards the end of the first spar cap. The modular wind turbine blade further comprises an elongate connecting element for connecting the first and second blade modules together. The connecting element has a first tapered end portion in which the thickness of the connecting element decreases towards a first end of the connecting element. The first tapered end portion is configured for bonding to the tapered end portion of the first spar cap. The first spar cap has an inner surface and an outer surface, the thickness being defined between the inner surface and the outer surface. The first spar cap comprises (i) an intermediate thickness band; (ii) an inner thickness band between the intermediate thickness band and the inner surface; and (iii) an outer thickness band between the intermediate thickness band and the outer surface. Each of the thickness bands have a tapered end within the tapered end portion of the first spar cap. The connecting element has an inner surface and an outer surface, the thickness of the connecting element being defined between the inner surface and the outer surface. The connecting element comprises (i) an intermediate thickness band; (ii) an inner thickness band between the intermediate thickness band and the inner surface; and (iii) an outer thickness band between the intermediate thickness band and the outer surface. Each of the thickness bands has a tapered end within the first tapered end portion of the connecting element. The tapered end of the inner thickness band and/or the tapered end of the outer thickness band of the first spar cap has a lower rate of taper than the tapered end of the intermediate thickness band of the first spar cap. Additionally or alternatively, the tapered end of the inner thickness band and/or the tapered end of the outer thickness band of the connecting element has a lower rate of taper than the tapered end of the intermediate thickness band of the connecting element.

    A WIND TURBINE WITH AN UP-TOWER ELECTROLYSIS SYSTEM AND A METHOD FOR CONTROLLING THE SYSTEM

    公开(公告)号:US20250059658A1

    公开(公告)日:2025-02-20

    申请号:US18723286

    申请日:2022-12-21

    Abstract: A wind turbine comprising a tower, a nacelle mounted rotatably on the tower via a yaw system and a hub carrying at least one wind turbine blade is disclosed. The wind turbine comprises a generator, an AC/DC converter connected to the generator and an electrolysis system connected to a DC power output of the AC/DC converter for producing hydrogen, the electrolysis system being arranged in an up-tower part of the wind turbine. A hydrogen transport line is connected to the electrolysis system for transporting hydrogen produced by the electrolysis system away from the electrolysis system, the hydrogen transport line extending in an interior part of the tower at least partly between the up-tower part of the wind turbine and a lower part of the tower. At least one hydrogen sensor are arranged in the interior part of the tower.

    RENEWABLE ENERGY POWER PLANT FAST FREQUENCY RESPONSE

    公开(公告)号:US20250055280A1

    公开(公告)日:2025-02-13

    申请号:US18718394

    申请日:2022-10-31

    Abstract: Aspects of the present invention relate to a method of controlling a renewable energy power plant connected to a power network. The renewable energy power plant comprises one or more renewable energy generators having an active power reserve for supplying additional active power to the power network and an energy storage system having an active power store. In response to detecting a frequency event on the power network a power sequence is implemented to manage the additional active power contributions from the energy storage system and the one or more renewable energy generators to satisfy the active power request.

    IMPROVEMENTS RELATING TO WIND TURBINE BLADE SHEAR WEBS

    公开(公告)号:US20250033307A1

    公开(公告)日:2025-01-30

    申请号:US18714747

    申请日:2022-12-01

    Inventor: Jonathan Smith

    Abstract: According to the present invention there is provided a mould for making a wind turbine blade shear web. The shear web comprises a longitudinally-extending web panel and a mounting flange extending along a longitudinal edge of the web panel and transverse to the web panel. The mounting flange comprises a first portion extending on a first side of the web panel and a second portion extending on a second side of the web panel. The mould comprises a longitudinally-extending main surface shaped to form the web panel, the main surface having a longitudinal edge. The mould further comprises a side surface arranged transverse to the main surface and extending downwards from the longitudinal edge of the main surface. The mould further comprises a base surface arranged transverse to the main surface and spaced from the side surface, the base surface having a first portion extending below the main surface to a first end of the base surface and a second portion extending above the main surface to a second end of the base surface. The first portion of the base surface is spaced from the side surface to define a mould cavity between the side surface and the first portion of the base surface, the mould cavity being configured to form the first portion of the mounting flange. The mould further comprises a datum-forming surface extending transversely from the second end of the base surface and defining a longitudinal edge at an intersection of the second portion of the base surface and the datum-forming surface. The second portion of the base surface and the datum-forming surface are configured to form the second portion of the mounting flange, and the datum-forming surface is configured to define a longitudinal edge of the second portion of the mounting flange.

    Tower for an offshore wind turbine comprising a crane and method of manufacturing such a tower

    公开(公告)号:US12208998B2

    公开(公告)日:2025-01-28

    申请号:US17798911

    申请日:2021-03-10

    Abstract: The invention relates to a method of manufacturing a tower (2) for an offshore wind turbine as well as such a tower. The method comprises providing the tower, mounting a crane (5) to an outer surface of the tower, and transporting the tower to the installation site of the wind turbine after the mounting of the crane. The crane comprises a base part (6) fixedly mounted to the tower, and a crane arm (7) pivotally connected to the base part at a first end (8). The method may further comprise a step of testing and certifying the crane according to a predetermined standard before the step of transporting the tower to the installation site. By application of the invention, the amount of installation work to be performed at the installation site can be minimized. In some embodiments of the invention, the crane arm has a shape matching the outer surface of the tower.

    Medium voltage safety procedure and housing

    公开(公告)号:US12199520B2

    公开(公告)日:2025-01-14

    申请号:US17769282

    申请日:2020-10-14

    Abstract: A wind turbine system with a medium voltage (MV) converter system for converting electric power by the wind turbine generator. A housing, e.g. a placed on the ground near the wind turbine tower, encloses the MV converter to block access. An access door with a controllable locking mechanism is controlled by an access control system which unlocks the access door after execution of a safety access algorithm. This allows a person to provide service to the potentially dangerous MV equipment in a safe an automated way after request. The housing preferably has a control compartment where a person can request access and await opening of the access door for safe access to the MV converter.

    A NACELLE FOR A WIND TURBINE
    30.
    发明申请

    公开(公告)号:US20250003395A1

    公开(公告)日:2025-01-02

    申请号:US18707199

    申请日:2022-10-19

    Abstract: The invention relates to a wind turbine nacelle (2) configured for mounting on a wind turbine tower (3) and housing a rotor-supporting assembly supporting a rotor, the nacelle further housing a power conversion assembly, the nacelle comprising: a main unit (20, 101) arranged to be connected to the wind turbine tower (3) and housing the rotor-supporting assembly, and at least one auxiliary unit (21, 22, 102) housing an operative component (34, 35, 104) forming part of the power conversion assembly, wherein the main unit (20, 101) and the auxiliary unit (21, 22, 102) are separate units configured to be connected by a unit fixation structure at an interface, and wherein the at least one auxiliary unit has a first height in an assembled configuration and a second height in a transportation configuration, the first height being higher than the second height.

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