Method to individually optimize respective pitch angles of a plurality of blades in a wind turbine
    12.
    发明授权
    Method to individually optimize respective pitch angles of a plurality of blades in a wind turbine 有权
    分别优化风力涡轮机中的多个叶片的相应桨距角的方法

    公开(公告)号:US09518560B2

    公开(公告)日:2016-12-13

    申请号:US13903180

    申请日:2013-05-28

    申请人: Justin Creaby

    发明人: Justin Creaby

    IPC分类号: F03D7/02

    CPC分类号: F03D7/0224 Y02E10/723

    摘要: A method to individually optimize respective pitch angles of blades in a wind turbine. The method allows supplying (102) a modulation signal to modulate a pitch angle of the individual blade being optimized. The method further allows filtering (104) output power of the turbine subject to the modulating frequency to extract a power signal in a frequency spectrum including the modulating frequency. The extracted power signal and a demodulation signal are mixed (106) to generate a signal including a product of the extracted power signal and the demodulation signal. The generated signal is filtered (108) to remove the modulating frequency and extract a gradient signal effective to search a pitch angle estimate conducive to optimize output power of the turbine. The gradient signal may be integrated (110) to cause the gradient signal to converge towards an optimal pitch angle for the individual blade being optimized.

    摘要翻译: 分别优化风力涡轮机中的叶片的相应俯仰角的方法。 该方法允许提供(102)调制信号以调制被优化的单个叶片的桨距角。 该方法还允许经受调制频率的涡轮机的过滤(104)输出功率以提取包括调制频率的频谱中的功率信号。 提取的功率信号和解调信号被混合(106)以产生包括提取的功率信号和解调信号的乘积的信号。 产生的信号被滤波(108)以去除调制频率并提取有效地搜索有助于优化涡轮机的输出功率的俯仰角估计的梯度信号。 梯度信号可以被积分(110),以使梯度信号朝向被优化的单个叶片的最佳俯仰角会聚。

    DAMPING AN OSCILLATORY MOVEMENT OF A NACELLE OF A WIND TURBINE
    13.
    发明申请
    DAMPING AN OSCILLATORY MOVEMENT OF A NACELLE OF A WIND TURBINE 审中-公开
    阻止风力涡轮机的振荡运动

    公开(公告)号:US20150076822A1

    公开(公告)日:2015-03-19

    申请号:US14026075

    申请日:2013-09-13

    IPC分类号: F03D7/02

    摘要: A method is provided for damping an oscillatory movement of a nacelle of a wind turbine. The nacelle is attached to a tower of the wind turbine. The method involves rotating the nacelle about a yawing axis with a yawing speed, the yawing axis being aligned with a longitudinal axis of the tower, changing the yawing speed, and coordinating the yawing speed with the oscillatory movement such that a torque resulting from the change of the yawing speed damps the oscillatory movement of the nacelle of the tower.

    摘要翻译: 提供了一种用于阻尼风力涡轮机的机舱的振荡运动的方法。 机舱连接到风力涡轮机的塔架上。 该方法包括以偏航速度围绕偏转轴线旋转机舱,偏航轴线与塔架的纵向轴线对准,改变偏航速度,以及使偏航速度与振荡运动协调使得由变化产生的转矩 的偏航速度阻止塔的机舱的振荡运动。