DAMPING OF EDGEWISE WIND TURBINE BLADE VIBRATIONS
    1.
    发明申请
    DAMPING OF EDGEWISE WIND TURBINE BLADE VIBRATIONS 审中-公开
    消除风轮机叶片振动

    公开(公告)号:WO2018019345A1

    公开(公告)日:2018-02-01

    申请号:PCT/DK2017/050195

    申请日:2017-06-13

    Abstract: There is presented a method for damping an edgewise vibration of a rotor blade of a wind turbine, wherein the method comprises measuring at the rotor blade a motion parameter of the edgewise rotor blade vibration, generating based on said motion parameter a blade pitch angle control signal, and damping the edgewise vibration of the rotor blade by pitching the rotor blade according to the blade pitch angle control signal, wherein the blade pitch angle control signal is arranged so that a resulting force on a rotor blade pitched according to the blade pitch angle control signal, in a direction of the edgewise vibration of the rotor blade in a coordinate system, which rotates with a rotor of the wind turbine, is opposite and proportional to the edgewise rotor blade vibration velocity.

    Abstract translation: 提出了一种用于阻尼风力涡轮机的转子叶片的沿边振动的方法,其中该方法包括在转子叶片处测量沿叶转子叶片振动的运动参数,基于所述 运动参数计算叶片桨距角控制信号,并且通过根据叶片桨距角控制信号俯仰转子叶片来衰减转子叶片的沿边振动,其中叶片桨距角控制信号被布置为使得转子叶片上的合力 根据叶片桨距角控制信号在与风力涡轮机的转子一起旋转的坐标系中的转子叶片的沿边振动的方向上与桨叶方向转子叶片振动速度相反并且成比例地变桨。 p>

    REDUCING NOISE EMISSIONS OF A WIND TURBINE
    2.
    发明申请

    公开(公告)号:WO2022089703A1

    公开(公告)日:2022-05-05

    申请号:PCT/DK2021/050316

    申请日:2021-10-26

    Abstract: The invention provides a method of reducing noise emissions of a wind turbine. The method includes receiving data indicative of wind conditions in the vicinity of the wind turbine, and determining an operational set point signal in accordance with a desired operation of the wind turbine, the operational set point signal being determined based on the received data. The method includes applying a perturbation signal to the operational set point signal to obtain a modified operational set point signal, and controlling operation of the wind turbine using the modified operational set point signal to reduce noise emissions of the wind turbine. The perturbation signal is applied such that the modified operational set point signal has greater temporal variation than the operational set point signal.

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