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    A WIND TURBINE OPTICAL WIND SENSOR
    52.
    发明公开
    A WIND TURBINE OPTICAL WIND SENSOR 有权
    光风传感器用于风力涡轮机

    公开(公告)号：EP2705376A1

    公开(公告)日：2014-03-12

    申请号：EP12722067.1

    申请日：2012-05-03

    Applicant: Vestas Wind Systems A/S

    Inventor： OLESEN, Ib Svend

    IPC: G01P5/20 ,  G01P5/26 ,  G01P13/04 ,  F03D7/02

    CPC classification number: F03D7/0204 ,  F03D7/02 ,  G01P5/20 ,  G01P5/26 ,  G01P13/045 ,  G01P15/093

    Abstract: The invention comprises a wind turbine optical wind sensor10mounted on the rotor 4 of a wind turbine, either on the blades 5 or on the hub 5. The sensor comprises a plurality of light sources, each generating respective sensor beams made up of at least two individual parallel component sensor beams. Transit times for particulate matter carried in the wind breaking the at least two component sensor beams are used to provide one or more of an indication of wind speed and/or a component of vertical wind speed. The data received from the sensor can be used in control processes for the operation of the wind turbine, particularly for temporarily pitching the rotor blades in adverse wind conditions, such as when vertical wind gusts are detected.

    WIND TURBINE INCLUDING OPTICAL SENSOR SYSTEM
    53.
    发明公开
    WIND TURBINE INCLUDING OPTICAL SENSOR SYSTEM 有权
    与光学传感器系统的风力涡轮机

    公开(公告)号：EP2697613A2

    公开(公告)日：2014-02-19

    申请号：EP12714937.5

    申请日：2012-04-13

    Applicant: Vestas Wind Systems A/S

    Inventor： OLESEN, Ib Svend

    IPC: G01H9/00

    CPC classification number: F03D11/0091 ,  F03D7/00 ,  F03D17/00 ,  F05B2260/80 ,  F05B2270/804 ,  G01H9/00 ,  G01N21/55 ,  Y02B10/30 ,  Y02E10/722

    Abstract: A wind turbine (1) includes an optical sensor system (10) comprising one or more optical sensors (12) comprising: a sensor membrane (18); a light source (20) for illuminating a surface of the sensor membrane; an optical dispersive element (26) arranged to disperse the light from the light source (20); and a light detector (30) for receiving a portion of the dispersed light beam after reflection from the surface of the sensor membrane (18)and dispersion of the light beam by the optical dispersive element. The wavelength of the light received at the light detector (30) varies as a function of the displacement of the sensor membrane (18) 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.

    LONG FIBRE OPTIC SENSOR SYSTEM IN A WIND TURBINE COMPONENT
    54.
    发明公开
    LONG FIBRE OPTIC SENSOR SYSTEM IN A WIND TURBINE COMPONENT 有权
    EINER WINDTBINENKOMPONENTE中的语言FASEROPTISCHES传感器

    公开(公告)号：EP2643663A1

    公开(公告)日：2013-10-02

    申请号：EP11790557.0

    申请日：2011-11-23

    Applicant: Vestas Wind Systems A/S

    Inventor： GLAVIND, Lars ,  HJORT, Thomas ,  OLESEN, Ib Svend

    IPC: G01D5/26 ,  H04B10/18 ,  F03D7/04

    CPC classification number: G01J1/0425 ,  F03D9/25 ,  F03D17/00 ,  F03D80/00 ,  G01D5/35303 ,  G01D5/35316 ,  G01D5/35345 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0091 ,  G01M11/083 ,  H02K9/24 ,  H02K11/25 ,  Y02E10/725

    Abstract: A sensor system for measuring an operating parameter of a wind turbine component is described. The fiber optic sensor system comprises a light source for outputting light in a predetermined range of wavelengths, and an optical fiber comprising a long Fiber Bragg Grating, extending continuously over a length of the optical fiber to provide a continuous measurement region in the optical fiber. The optical fiber 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. A light detector receives light from the optical fiber, and provides an output signal to the controller indicating the intensity of the received light; based on the detected light, a value for the operating parameter is determined.

    Abstract translation: 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。 光检测器从光纤接收光，并向控制器提供指示接收光的强度的输出信号; 基于检测到的光，确定操作参数的值。

    OPTIMISATION OF POWER PRODUCTION IN A WIND TURBINE AT BELOW RATED POWER
    58.
    发明授权
    OPTIMISATION OF POWER PRODUCTION IN A WIND TURBINE AT BELOW RATED POWER 有权
    低电压下风电机组发电量的优化

    公开(公告)号：EP2798203B1

    公开(公告)日：2017-04-26

    申请号：EP12810045.0

    申请日：2012-12-13

    Applicant: Vestas Wind Systems A/S

    Inventor： ANDERSEN, Asger Svenning ,  THOMSEN, Jesper Sandberg ,  KRISTOFFERSEN, Jacob Krogh ,  OLESEN, Ib Svend ,  ROMBLAD, Jonas

    IPC: F03D7/04 ,  F03D7/02 ,  F03D17/00

    CPC classification number: F03D7/0256 ,  F03D7/0224 ,  F03D7/042 ,  F03D7/046 ,  F03D17/00 ,  Y02E10/723

    Abstract: The rotor blades of a wind turbine each have a plurality of fiber-optic pressure variation sensors which can detect the onset of a stall condition. The output of the stall condition sensors is input to a stall count circuit which increases a stall count signal each time a stall indication is received. The stall count signal is decayed exponentially over time and the current signal is summed with the decayed signal from a previous sampling period to form a value from which a stall margin is determined. An λ:θ curve of tip speed to wind speed ratio λ against pitch angle reference θ is then determined from the stall margin.

    Abstract translation: 风力涡轮机的转子叶片各自具有多个光纤压力变化传感器，其可以检测失速情况的发生。 失速状态传感器的输出被输入到失速计数电路，该失速计数电路在每次接收失速指示时增加失速计数信号。 失速计数信号随时间呈指数衰减，并且电流信号与来自先前采样周期的衰减信号相加以形成确定失速裕度的值。 λ：θ 叶尖速度与风速比λ对俯仰角基准θ的曲线; 然后由失速裕度确定。

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