公开(公告)号：US20150113779A1

公开(公告)日：2015-04-30

申请号：US14405682

申请日：2013-06-04

Applicant: Technische Universität München

Inventor： Thorbjörn Buck ,  Lars Hoffmann ,  Mathias Müller ,  Rolf Wojtech

IPC: F03D11/00 ,  F03D3/06 ,  G01M5/00

CPC classification number: F03D11/0091 ,  F03D3/062 ,  F03D17/00 ,  F05B2270/802 ,  F05B2270/804 ,  F05B2270/821 ,  G01M5/0091 ,  Y02E10/721 ,  Y02E10/722 ,  Y02P70/523 ,  Y10T29/37 ,  Y10T29/49336

Abstract: The present invention provides a method for installing at least one sensor device within a rotor blade of a wind turbine. A first substantially planar light beam is emitted in the interior of the rotor blade. Finally, at least one second substantially planar light beam is emitted in the interior of the rotor blade, wherein the plane of the first planar light beam is oriented at a predetermined angle to the plane of the second planar light beam. Further, the planes of the first and second planar light beams are aligned on the blade flange of the rotor blade. At least one sensor device is subsequently aligned in reference to the planar light beams.

Abstract translation: 本发明提供一种用于在风力涡轮机的转子叶片内安装至少一个传感器装置的方法。 第一基本上平面的光束在转子叶片的内部被发射。 最后，至少一个第二基本上平面的光束在转子叶片的内部被发射，其中第一平面光束的平面被定向成与第二平面光束的平面成预定的角度。 此外，第一和第二平面光束的平面对准在转子叶片的叶片凸缘上。 随后将至少一个传感器装置对准平面光束。

公开(公告)号：US09014863B2

公开(公告)日：2015-04-21

申请号：US13388391

申请日：2010-08-06

Applicant: Ib Olesen

Inventor： Ib Olesen

IPC: G05D7/00 ,  B63H3/00 ,  F03D7/02

CPC classification number: F03D7/02 ,  F03D7/0224 ,  F05B2260/80 ,  F05B2270/1033 ,  F05B2270/804 ,  Y02E10/723

Abstract: A control system may be used for rotor blade control. The control system comprises a number of turbulence sensors provided across the surface of a wind turbine blade. The control system monitors the turbulence sensors and when turbulent airflow is detected controls an aerodynamic parameter of the blades. In one embodiment, the parameter is the pitch of the rotor blades. This means that stall-like blade conditions can be avoided, and power generation from the wind turbine can be optimized. The control system may also use measurements of output power to be considered in combination with the turbulence based measurements to add a higher level of responsiveness and precise control.

Abstract translation: 控制系统可用于转子叶片控制。 控制系统包括跨越风力涡轮机叶片的表面设置的多个湍流传感器。 控制系统监测湍流传感器，并且当检测到湍流气流时控制叶片的空气动力学参数。 在一个实施例中，参数是转子叶片的桨距。 这意味着可以避免类似失速的叶片状况，并且可以优化来自风力涡轮机的发电。 控制系统还可以使用与基于湍流的测量相结合的输出功率的测量，以增加更高水平的响应性和精确的控制。

公开(公告)号：US20150064005A1

公开(公告)日：2015-03-05

申请号：US14535888

申请日：2014-11-07

Applicant: LM GLASFIBER A/S

Inventor： Peter FUGLSANG ,  Lars FUGLSANG ,  Lars Christian Hvidegaard HAMMER

IPC: F03D7/02 ,  G01P5/26 ,  F03D7/04

CPC classification number: F03D7/0224 ,  F03D7/0232 ,  F03D7/042 ,  F05B2260/82 ,  F05B2270/32 ,  F05B2270/326 ,  F05B2270/804 ,  F05B2270/8042 ,  G01P5/26 ,  Y02E10/723

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140327569A1

公开(公告)日：2014-11-06

申请号：US14350621

申请日：2012-10-04

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Justin Fun ,  Simon Trist

IPC: G01S13/95

CPC classification number: G01S13/951 ,  F03D1/04 ,  F03D3/0445 ,  F03D80/10 ,  F05B2260/82 ,  F05B2270/32 ,  F05B2270/321 ,  F05B2270/804 ,  F05B2270/805 ,  G01S13/93 ,  G01S13/956 ,  Y02E10/72 ,  Y02E10/74

Abstract: A radar system for a wind turbine is provided. The radar system comprises a first radar unit (42) and a control unit (41) arranged to receive an output from the radar unit, the control unit comprising a central processing unit. The central processing unit is configured to perform a first function of determining at least one property of aircraft within a monitoring zone in the vicinity of the wind turbine and controlling a warning device to output a warning signal to detected aircraft based on the determined property; and perform a second function of determining at least one parameter of prevailing weather in the vicinity of the wind turbine. A corresponding method is also provided.

Abstract translation: 提供了一种用于风力涡轮机的雷达系统。 所述雷达系统包括第一雷达单元（42）和控制单元（41），所述第一雷达单元（42）和控制单元（41）布置成接收所述雷达单元的输出，所述控制单元包括中央处理单元。 中央处理单元被配置为执行确定风力涡轮机附近的监视区域内的飞行器的至少一个属性的第一功能，并且控制警告装置基于所确定的属性向检测到的飞行器输出警告信号; 并且执行确定风力涡轮机附近的主要天气的至少一个参数的第二功能。 还提供了相应的方法。

公开(公告)号：US20140054894A1

公开(公告)日：2014-02-27

申请号：US14111069

申请日：2012-04-13

Applicant: Ib Svend Olesen

Inventor： Ib Svend Olesen

IPC: F03D11/00 ,  F03D7/00

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 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.

Abstract translation: 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，用于在从所述传感器膜的表面反射之后接收所述分散光束的一部分并且通过所述光学色散元件分散所述光束。 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。

公开(公告)号：US20130078095A1

公开(公告)日：2013-03-28

申请号：US13634533

申请日：2011-03-10

Applicant: Ib Svend Olesen

Inventor： Ib Svend Olesen

IPC: F03D11/00

CPC classification number: F21V29/70 ,  F03D7/022 ,  F03D7/0224 ,  F03D7/043 ,  F03D17/00 ,  F05B2270/334 ,  F05B2270/804 ,  G01H9/00 ,  Y02E10/722 ,  Y02E10/723

Abstract: A wind energy power plant optical vibration sensor is described, using two light sources 15, 16 that emit light at different respective frequencies. The light from the first light source falls on a surface 44 of the wind energy power plant at a detection site. Movements in the surface result in changes to the phase of the light reflected back from the surface which can be detected by mixing the first light with the light emitted from the second light source. The difference in frequencies between the two light sources results in a beating of the resulting interference signal, whereas movements in the sensor surface result in changes in the phase timing and frequency of the beats.

Abstract translation: 描述了使用以不同的相应频率发光的两个光源15,16的风力发电厂光学振动传感器。 来自第一光源的光在检测部位落在风力发电厂的表面44上。 表面上的运动导致从表面反射回来的光的相位变化，这可以通过将第一光与从第二光源发射的光混合来检测。 两个光源之间的频率差导致所得到的干扰信号的跳动，而传感器表面中的移动导致相位定时和频率的改变。

公开(公告)号：US08265885B2

公开(公告)日：2012-09-11

申请号：US13167931

申请日：2011-06-24

Applicant: Sheri George

Inventor： Sheri George

IPC: G01N3/60 ,  G06F17/40

CPC classification number: F03D17/00 ,  F05B2270/804

Abstract: A method for monitoring stress on a wind turbine blade during loading is disclosed. The method includes capturing multiple images at respective locations of the blade. The method also includes measuring temperature at the respective locations based upon captured images. The method further includes calculating stress applied on the blade at the respective locations based upon the measured temperature. The method also includes calculating stress applied on the blade at the respective locations based upon the measured temperature. The method further includes comparing the calculated stress with respective theoretical stress in a finite element model to predict lifetime of the blade. The method also includes alerting an operator in event that the calculated stress at one or more of the respective locations is above a pre-determined limit.

Abstract translation: 公开了一种用于在加载期间监测风力涡轮机叶片上的应力的方法。 该方法包括在叶片的相应位置捕获多个图像。 该方法还包括基于捕获的图像测量各个位置处的温度。 该方法还包括基于所测量的温度来计算在相应位置施加在叶片上的应力。 该方法还包括基于所测量的温度来计算在相应位置施加在叶片上的应力。 该方法还包括将计算的应力与有限元模型中的理论应力进行比较以预测叶片的寿命。 该方法还包括在一个或多个相应位置处的计算的应力高于预定极限的情况下警告操作者。

公开(公告)号：US20120207589A1

公开(公告)日：2012-08-16

申请号：US13498804

申请日：2010-07-08

Applicant: Jack Fridthjof

Inventor： Jack Fridthjof

IPC: F03D9/00 ,  G01J4/00 ,  G01N21/55

CPC classification number: F03D7/02 ,  B64D15/20 ,  F03D7/06 ,  F03D17/00 ,  F03D80/40 ,  F05B2270/804 ,  Y02E10/72

Abstract: A structure including at least one airfoil, at least one device for detecting surface conditions on a surface of the at least one airfoil, and at least one sensor device, the sensor device including at least one radiation emitter adapted to emit radiation directed towards at least one surface of the airfoil, at least one first detector arranged for receiving a portion of the emitted radiation when reflected from the at least one surface and producing a first output according to an intensity thereof, at least one second detector arranged for receiving a portion of the emitted radiation when reflected from the at least one surface and producing a second output according to an intensity thereof, and control means adapted to receive and evaluate the output from the detectors based on an amount of diffuse reflected and mirror reflected radiation reflected from the at least one surface, and producing an output according thereto.

Abstract translation: 包括至少一个翼型件的结构，用于检测所述至少一个翼型件的表面上的表面状况的至少一个装置以及至少一个传感器装置，所述传感器装置包括至少一个辐射发射器，所述至少一个辐射发射器适于发射朝向至少一个 所述翼型件的一个表面，至少一个第一检测器，布置成用于当从所述至少一个表面反射时接收所发射的辐射的一部分，并根据其强度产生第一输出;至少一个第二检测器，布置成用于接收一部分 当从至少一个表面反射时产生的发射辐射并根据其强度产生第二输出;以及控制装置，其适于基于从该反射的反射的漫反射和反射反射辐射的量接收和评估来自检测器的输出 至少一个表面，并根据其产生输出。

公开(公告)号：US20120171036A1

公开(公告)日：2012-07-05

申请号：US12981851

申请日：2010-12-30

Applicant: Carsten Hein Westergaard

Inventor： Carsten Hein Westergaard

IPC: F01D25/00 ,  G01N21/47

CPC classification number: G01P13/00 ,  F03D17/00 ,  F05B2270/328 ,  F05B2270/804 ,  G01P5/26 ,  G01P13/025 ,  G01S7/4814 ,  G01S17/107 ,  G01S17/58 ,  G01S17/88 ,  Y02E10/722

Abstract: Methods and apparatus for optically detecting an angle of attack for an airfoil using light detection and ranging (LIDAR). To determine the angle of attack, one or more light beam pulses may be emitted from the leading edge of the airfoil into an (apparently) flowing fluid at various emission angles. The emitted pulses may be backscattered by particles in the fluid, and the backscattered light may be received by a detector at the airfoil. By range gating the returning pulses of backscattered light, a fluid velocity may be determined for each of the emission angles. The angle of attack is identified as the emission angle corresponding to the maximum velocity. A parameter (e.g., pitch or speed) of the airfoil may be controlled based on the angle of attack. In this manner, the airfoil may be manipulated or the shape of the airfoil may be adjusted for increased performance or efficiency.

Abstract translation: 使用光检测和测距（LIDAR）光学检测翼型的迎角的方法和装置。 为了确定迎角，一个或多个光束脉冲可以从翼型的前缘发射成以各种发射角度的（表面上）流动的流体。 发射的脉冲可以由流体中的颗粒反向散射，并且后向散射的光可以被翼型处的检测器接收。 通过范围选通反向散射光的返回脉冲，可以针对每个发射角确定流体速度。 攻角被确定为对应于最大速度的发射角。 可以基于迎角来控制翼型件的参数（例如，俯仰或速度）。 以这种方式，可以操纵翼型件或者可以调节翼型的形状以提高性能或效率。

公开(公告)号：US20120165996A1

公开(公告)日：2012-06-28

申请号：US13388391

申请日：2010-08-06

Applicant: Ib Olesen

Inventor： Ib Olesen

IPC: F03D7/02 ,  G05D7/06

CPC classification number: F03D7/02 ,  F03D7/0224 ,  F05B2260/80 ,  F05B2270/1033 ,  F05B2270/804 ,  Y02E10/723

Abstract: A control system for rotor blade control is discussed. The control system comprises a number of turbulence sensors provided across the surface of a wind turbine blade. The control system monitors the turbulence sensors and when turbulent air flow is detected controls an aerodynamic parameter of the of the blades. In one embodiment, the parameter is the pitch of the rotor blades. This means that stall-like blade conditions can be avoided, and power generation from the wind turbine can be optimised. The control system may also use measurements of output power as a control system to which the turbulence based measurements add extra responsivity and finer control.

Abstract translation: 讨论了一种用于转子叶片控制的控制系统。 控制系统包括跨越风力涡轮机叶片的表面设置的多个湍流传感器。 控制系统监测湍流传感器，并且当检测到湍流空气流时控制叶片的空气动力学参数。 在一个实施例中，参数是转子叶片的桨距。 这意味着可以避免类似失速的叶片状况，并且可以优化来自风力涡轮机的发电。 控制系统还可以使用输出功率的测量作为控制系统，基于湍流的测量增加额外的响应性和更精细的控制。