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    • 2. 发明申请
    • LONG FIBRE OPTIC SENSOR SYSTEM IN A WIND TURBINE COMPONENT
    • 风力涡轮机组件中的长纤维光学传感器系统
    • WO2012069058A1
    • 2012-05-31
    • PCT/DK2011/050446
    • 2011-11-23
    • VESTAS WIND SYSTEMS A/SGLAVIND, LarsHJORT, ThomasOLESEN, Ib Svend
    • GLAVIND, LarsHJORT, ThomasOLESEN, Ib Svend
    • G01D5/26H04B10/18F03D7/04
    • G01J1/0425F03D9/25F03D17/00F03D80/00G01D5/35303G01D5/35316G01D5/35345G01M5/0016G01M5/0033G01M5/0091G01M11/083H02K9/24H02K11/25Y02E10/725
    • A sensor system for measuring an operating parameter of a wind turbine component is described. The fibre optic sensor system comprises a light source for outputting light in a predetermined range of wavelengths, and an optical fibre comprising a long Fibre Bragg Grating, extending continuously over a length of the optical fibre to provide a continuous measurement region in the optical fibre. The optical fibre is coupled to the wind turbine component such that the continuous measurement region is located at a region of the wind turbine component to be sensed, and such that the grating period at each location in the continuous measurement period is dependent upon the value of the operating parameter at that location. The system further comprises a light detector for receiving light from the optical fibre, and for providing an output signal to the controller indicating the intensity of the received light; and a controller coupled to the light detector for determining, based on the detected light, a value for the operating parameter. In a particular embodiment the system is used to monitor the generator in the wind turbine nacelle. The optical fibre with the long FBG grating can the be inserted into the coil windings or stator slot of the generator.
    • 描述了用于测量风力涡轮机部件的操作参数的传感器系统。 光纤传感器系统包括用于输出预定波长范围的光的光源,以及包括在光纤长度上连续延伸的长光纤布拉格光栅的光纤,以在光纤中提供连续的测量区域。 光纤耦合到风力涡轮机部件,使得连续测量区域位于要感测的风力涡轮机部件的区域,并且使得连续测量周期中每个位置处的光栅周期取决于 该位置的操作参数。 该系统还包括用于接收来自光纤的光的光检测器,并且向控制器提供指示所接收的光的强度的输出信号; 以及耦合到光检测器的控制器,用于基于检测到的光来确定操作参数的值。 在特定实施例中,该系统用于监测风力涡轮机机舱中的发电机。 具有长FBG光栅的光纤可以插入发生器的线圈绕组或定子槽中。
    • 3. 发明申请
    • A SYSTEM AND METHOD FOR IDENTIFYING THE LIKELIHOOD OF A TOWER STRIKE IN A WIND TURBINE
    • 用于识别风力涡轮机中塔楼撞击物的系统和方法
    • WO2012003841A2
    • 2012-01-12
    • PCT/DK2011/050410
    • 2011-10-31
    • VESTAS WIND SYSTEMS A/SOLESEN, Ib SvendGLAVIND, Lars
    • OLESEN, Ib SvendGLAVIND, Lars
    • F03D11/00
    • F03D17/00F03D7/0288F05B2240/912F05B2270/17F05B2270/31F05B2270/33F05B2270/804F05B2270/808F05B2270/821Y02E10/721Y02E10/722Y02E10/723Y02E10/728
    • A system for identifying the likelihood of a wind turbine rotor blade striking a wind turbine tower comprises a device for sensing bending of a wind turbine rotor blade and a device for sensing bending of a wind turbine tower. In a preferred embodiment Long Period Grating (LPG) sensors are used to measure bending of the tower. Preferably a plurality of LPG sensors is provided along the length of the blade. In one embodiment at least one of the LPG sensors comprises two sensing elements arranged to sense in perpendicular directions. In another embodiment a plurality of LPG sensors are provided each on different sides of the wind turbine tower. A processor uses the sensed blade and tower bending to determine whether the distance between the blade and the tower will be below a predetermined minimum value. If the distance is determined to be below the predetermined minimum value a controller may be used to adjust a wind turbine variable to reduce loading on the blade and thereby reduce the likelihood of a tower strike.
    • 用于识别风力涡轮机转子叶片撞击风力涡轮机塔架的可能性的系统包括用于感测风力涡轮机转子叶片的弯曲的装置和用于感测风力涡轮机塔架的弯曲的装置。 在优选实施例中,长周期光栅(LPG)传感器用于测量塔的弯曲。 优选地,沿着叶片的长度设置多个LPG传感器。 在一个实施例中,LPG传感器中的至少一个包括布置成在垂直方向上感测的两个感测元件。 在另一个实施例中,在风力涡轮机塔架的不同侧面上设置多个LPG传感器。 处理器使用感测到的叶片和塔架弯曲来确定叶片和塔架之间的距离是否将低于预定的最小值。 如果该距离被确定为低于预定的最小值,则可以使用控制器来调节风力涡轮机变量以减少叶片上的负载,从而降低塔架撞击的可能性。