WIND TURBINE OPERATING METHOD AND DEVICE BASED ON LOAD AND ACCELERATION MEASUREMENTS IN THE BLADE
    65.
    发明申请
    WIND TURBINE OPERATING METHOD AND DEVICE BASED ON LOAD AND ACCELERATION MEASUREMENTS IN THE BLADE 审中-公开
    风力涡轮机操作方法和装置,基于叶片中的载荷和加速度测量

    公开(公告)号:US20160186722A1

    公开(公告)日:2016-06-30

    申请号:US14908879

    申请日:2014-07-04

    发明人: Ib Svend OLESEN

    IPC分类号: F03D7/02 F03D7/04 F03D1/06

    摘要: Improvements Relating to Wind Turbines A wind turbine apparatus and a method of operating said wind turbine to maintain the load on the rotor blade below a predetermined threshold level is provided. The method comprises: measuring load at a root end of the rotor blade; measuring an acceleration at a location on the rotor blade outboard from the root end, the acceleration being caused by transient loads acting on the rotor blade; and controlling the wind turbine based upon the measured load and the measured acceleration to maintain the load on the rotor blade below a predetermined threshold level.

    摘要翻译: 涉及风力发电机的改进提供了风力涡轮机装置和操作所述风力涡轮机以将转子叶片上的负载维持在预定阈值水平以下的方法。 该方法包括:测量转子叶片根部端的负载; 测量从根部外侧的转子叶片上的位置处的加速度,加速度是由作用在转子叶片上的瞬时负载引起的; 以及基于测量的负载和所测量的加速度来控制风力涡轮机,以将转子叶片上的负载维持在预定阈值水平以下。

    WIND DETECTOR FOR WIND TURBINE GENERATORS
    67.
    发明申请
    WIND DETECTOR FOR WIND TURBINE GENERATORS 审中-公开
    风力发电机风力发电机

    公开(公告)号:US20150122007A1

    公开(公告)日:2015-05-07

    申请号:US14362994

    申请日:2012-12-07

    发明人: Ib Svend Olesen

    IPC分类号: G01P13/02 G01N21/53

    摘要: The invention relates to an optical detector for determining the relative wind direction (attack angle) relative to a rotating or stationary wind turbine rotor. The optical detector comprises an output part which transmits distinguishable light beams out from a rotor blade in different predetermined directions. The beams may be distinguishable by light color, by the time the individual beams are emitted and/or by different amplitude modulation frequencies or other modulations of the individual beams. By determining pulse times of scattered light from wind borne particles moving in or through the different distinguishable beams, or determining the number of pulses within a period, it is possible to determine the relative wind direction or angle of attach as the predetermined direction of a beam which has the longest pulse times or the fewest number of pulses within a given period of time.

    摘要翻译: 本发明涉及一种用于确定相对于旋转或固定风力涡轮机转子的相对风向(攻角)的光学检测器。 光学检测器包括输出部件,其以不同的预定方向将可分辨的光束从转子叶片传出。 光束可以通过光颜色,各个光束发射的时间和/或通过不同的幅度调制频率或各个光束的其它调制来区分。 通过确定在不同可分辨光束中移动或穿过不同可分辨光束的风载粒子的散射光的脉冲时间,或者确定一段时间内的脉冲数,可以确定作为光束的预定方向的相对风向或附着角度 在给定的时间内具有最长的脉冲时间或最少的脉冲数。

    Wind turbine blade provided with optical wind velocity measurement system
    68.
    发明授权
    Wind turbine blade provided with optical wind velocity measurement system 有权
    风力发电机叶片配有光学风速测量系统

    公开(公告)号:US08917383B2

    公开(公告)日:2014-12-23

    申请号:US13512512

    申请日:2010-11-26

    IPC分类号: F03D7/02

    摘要: A wind turbine includes a number of blades and an optical measurement system comprising a light source, such as a laser, an optical transmitter part, an optical receiver part, and a signal processor. The light source is optically coupled to the optical transmitter part, which includes an emission point for emitting light in a probing direction. The optical receiver part comprises a receiving point and a detector. The optical receiver part is adapted for receiving a reflected part of light from a probing region along the probing direction and directing the reflected part of light to the detector to generate a signal used to determine a first velocity component of the inflow. The emission point is located in a first blade at a first radial distance from a center axis, and the receiving point is located in the first blade at a second radial distance from the center axis.

    摘要翻译: 风力涡轮机包括多个叶片和包括光源(例如激光器,光发射器部分,光接收器部分和信号处理器)的光学测量系统。 光源光学耦合到光发射器部分,其包括用于在探测方向上发射光的发射点。 光接收器部分包括接收点和检测器。 光接收器部分适于沿着探测方向接收来自探测区域的光的反射部分,并将光的反射部分引导到检测器,以产生用于确定流入的第一速度分量的信号。 发射点位于距离中心轴线的第一径向距离处的第一叶片中,并且接收点位于距离中心轴线的第二径向距离处的第一叶片中。

    Wind turbine including optical sensor system
    69.
    发明授权
    Wind turbine including optical sensor system 有权
    风力发电机包括光学传感器系统

    公开(公告)号:US08885168B2

    公开(公告)日:2014-11-11

    申请号:US14111069

    申请日:2012-04-13

    申请人: Ib Svend Olesen

    发明人: Ib Svend Olesen

    摘要: A wind turbine includes an optical sensor system comprising one or more optical sensors comprising: a sensor membrane; a light source for illuminating a surface of the sensor membrane; an optical dispersive element arranged to disperse the light from the light source; and a light detector for receiving a portion of the dispersed light beam after reflection from the surface of the sensor membrane and dispersion of the light beam by the optical dispersive element. The wavelength of the light received at the light detector varies as a function of the displacement of the sensor membrane and the light detector operatively provides an output based on changes in the wavelength of the received light. The wind turbine is operable based on an input to a wind turbine control system received from the optical sensor system.

    摘要翻译: 风力涡轮机包括光学传感器系统,其包括一个或多个光学传感器,包括:传感器膜; 用于照射传感器膜的表面的光源; 布置成分散来自光源的光的光学色散元件; 以及光检测器,用于在从传感器膜的表面反射之后接收分散的光束的一部分,并且通过光学色散元件分散光束。 在光检测器处接收的光的波长根据传感器膜的位移而变化,并且光检测器基于接收光的波长的变化而可操作地提供输出。 风力涡轮机基于从光学传感器系统接收的风力涡轮机控制系统的输入而可操作。

    Embedded fibre optic sensor for wind turbine components
    70.
    发明授权
    Embedded fibre optic sensor for wind turbine components 有权
    用于风力发电机组件的嵌入式光纤传感器

    公开(公告)号:US08814514B2

    公开(公告)日:2014-08-26

    申请号:US13002183

    申请日:2009-07-03

    申请人: Ib Olesen

    发明人: Ib Olesen

    IPC分类号: F03D11/00

    摘要: A fiber optic sensor is embedded in an integral housing block formed by molding or extrusion. The housing block has a mounting surface for attachment to a wind turbine component by adhesive or mechanical connection. In an arrangement where the sensor is to be isolated from strains on the component, the housing block may be mounted on the component by means of a smaller mounting portion, joining the mounting portion at a neck region.

    摘要翻译: 纤维光学传感器嵌入通过模制或挤出形成的整体式壳体块中。 壳体块具有用于通过粘合剂或机械连接附接到风力涡轮机部件的安装表面。 在传感器要与组件上的应变隔离的布置中,壳体块可以通过较小的安装部分安装在部件上,将安装部分连接在颈部区域。