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    ACTIVE YAW MITIGATION OF WIND INDUCED VIBRATIONS
    1.
    发明申请
    ACTIVE YAW MITIGATION OF WIND INDUCED VIBRATIONS 审中-公开

    公开(公告)号：WO2020108715A1

    公开(公告)日：2020-06-04

    申请号：PCT/DK2019/050359

    申请日：2019-11-20

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： MADSEN, Søren Bøgelund ,  BROHM, Anders ,  HALD, Tue ,  QU, Shougang

    IPC: F03D7/02 ,  F03D13/10

    Abstract: The invention relates to a method and a wind turbine system reducing, preventing or mitigating vibrations due to wind induced vibrations. The wind turbine system includes a wind turbine tower 102, a sensor arrangement 304 for sensing vibrations of the wind turbine tower, a nacelle 104 mounted to the wind turbine tower via a yaw bearing 310 and a control system 306 for controlling yawing of the nacelle relative to the wind turbine tower. The system is adapted for sensing 402 a vibration of the wind turbine tower using the sensor arrangement, providing 404 an input for the control system in response to the vibration of the wind turbine tower as sensed by the sensor arrangement, and providing 406 an output by the control system based on the input, and yawing 408 the wind turbine nacelle based on the output from the control system, and hereby reducing wind induced vibrations of the tower and nacelle, particularly vortex induced vibrations and/or vibrations due to galloping.

    MODULAR TOWER DAMPER SYSTEM
    3.
    发明申请
    MODULAR TOWER DAMPER SYSTEM 审中-公开

    公开(公告)号：WO2020125886A1

    公开(公告)日：2020-06-25

    申请号：PCT/DK2019/050383

    申请日：2019-12-11

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： MADSEN, Søren Bøgelund ,  HALD, Tue

    IPC: F03D13/20

    Abstract: The present invention relates to a damper module adapted to be secured to a wind turbine tower section, the damper module comprising at least one liquid damper secured to a frame structure, wherein each liquid damper comprises a container comprising an interior volume containing an amount of liquid, wherein the amount of liquid in the interior volume of the container sets a natural frequency of the liquid damper, and wherein the frame structure comprises an interface arrangement configured for, in cooperation with a damper module suspension arrangement in a tower section, securing the damper module to said tower section, and a liquid damper fastening arrangement configured for securing said at least one liquid damper to the frame structure. The present invention further relates to a liquid damper and a tower section having at least one damper module secured thereto.

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