Reduction of edgewise vibrations using blade load signal

    公开(公告)号:US12173694B2

    公开(公告)日:2024-12-24

    申请号:US18260466

    申请日:2022-01-03

    Abstract: The present invention relates to control of a wind turbine to reduce structural loading due to vibrations of the blades along the edgewise direction. A rotor control system for actuating pitch of pitch-adjustable rotor blades of a wind turbine is disclosed. Pitch modification signals are determined based on edgewise load signals for each of the rotor blades. The edgewise load signal are coordinated transformed and input into a primary whirling controller unit to provide whirling signal components which can be used for determining the pitch modification signals.

    METHOD AND SYSTEM FOR HANDLING COMPONENTS OF AN OFFSHORE WIND TURBINE

    公开(公告)号:US20240400169A1

    公开(公告)日:2024-12-05

    申请号:US18691080

    申请日:2022-08-03

    Abstract: A method of replacing a component (28b) of an offshore wind turbine (10) includes providing a sea vessel (30) having a transport system (50)) with a base (52), an elongate platform (54) connected to the base (52), and a transport frame (56a, 56b) for receiving a component (28b) of the wind turbine (10). The sea vessel (30) is positioned such that its deck (40) is separated from the wind turbine (10) by more than a maximum working distance (72) of a crane (26) onboard the wind turbine (10), and further positioned such that in an extended position, the transport frame (56a, 56b) is within the maximum working distance (72) of the crane (26), and in a retracted position, the transport frame (56a, 56b) is outside of the maximum working distance (72). The method includes arranging the transport frame (56a, 56b) in the extended position, lowering a component (28b) of the wind turbine (10) using the crane (26), and placing the component (28b) on the transport frame (56a, 56b). A transport system (50) for handling wind turbine components (28a, 28b) is also disclosed.

    WIND TURBINE BLADE WITH LIGHTNING PROTECTION SYSTEM

    公开(公告)号:US20240392744A1

    公开(公告)日:2024-11-28

    申请号:US18694268

    申请日:2022-09-21

    Inventor: Stephen Randall

    Abstract: There is provided a wind turbine blade having a root end, a tip end, a blade shell, a lightning protection system and an integrated web-down conductor. The integrated web-down conductor comprises: a down conductor forming part of the lightning protection system: electrical insulation surrounding the down conductor; and a web that surrounds the electrical insulation so as to enclose the down conductor and electrical insulation and is coupled to the blade shell.

    Method for improved power ramping in a hybrid power plant

    公开(公告)号:US12155220B2

    公开(公告)日:2024-11-26

    申请号:US17914704

    申请日:2021-03-05

    Abstract: The invention relates to a method for providing power ramp rate control of a hybrid power plant with a plurality of energy assets including wind turbine generators and possibly solar power units, and an energy storage unit. Each energy asset has a ramp rate capability defined as the highest possible ramp rate at a given time, and the method includes receiving from each energy asset the corresponding ramp rate capability, and taking into account the ramp rate capabilities from the energy assets when calculating the power setpoint to each energy asset, so as to improve the power ramp rate control of the hybrid power plant.

    Dynamic control of reactive power limits of wind power plant

    公开(公告)号:US12123397B2

    公开(公告)日:2024-10-22

    申请号:US18257580

    申请日:2021-12-06

    Abstract: The disclosure relates to a method of operating a wind power plant, and related power plant controller and wind power plant. The method comprises determining a first active power at a first operating point and applying a first limit value for a reactive power limit. The method further comprises determining a second active power at a second operating point. The method further comprises, responsive to determining that the second active power meets one or more active power conditions referenced to the first active power, applying a second limit value for the reactive power limit. Applying the second limit value comprises limiting a ramp rate of the reactive power limit. The method further comprises generating control signals for one or more wind turbines to control a collective reactive power output of the wind power plant in accordance with the reactive power limit.

    CONTROL OF A TOOL MOUNTED ON A ROBOTIC ARM
    39.
    发明公开

    公开(公告)号:US20240308083A1

    公开(公告)日:2024-09-19

    申请号:US18571698

    申请日:2022-06-07

    Inventor: Jeremy HAIGHT

    CPC classification number: B25J9/1697 B25J9/1664

    Abstract: Controlling the position of a tool mounted on a robotic arm comprising projecting an image onto the workpiece from a projector and detected using a camera. The camera and projector are mounted on the tool or robotic arm. The image is used to determine a relative position of the tool with respect to a workpiece and the relative position is provided as an input to a controller which is configured to compare the relative position to a predetermined value. If the relative position is not equal to the predetermined value, a control signal is issued to a position controller to move the tool to a new position in which the relative position of the tool is closer to the predetermined value. Or, if the relative position is equal to the predetermined value, a control signal is issued to the position controller to maintain the tool in its current position.

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