公开(公告)号：WO2016066170A1

公开(公告)日：2016-05-06

申请号：PCT/DK2015/050324

申请日：2015-10-22

Applicant: VESTAS WIND SYSTEMS A/S

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

IPC: F03D80/00 ,  F03D7/02

CPC classification number: F03D17/00 ,  F03D7/0256 ,  F05B2240/122 ,  F05B2270/324 ,  F05B2270/80

Abstract: The invention relates to turbulence sensor for wind turbine blades. The sensor is configured to promote turbulence of air flowing over the blade at a location of the sensor which comprises a detector configured to detect air turbulence. Since the sensor promotes turbulence compared to adjacent locations of a wind turbine blade the sensors can be used to predict that the blade is close to a stall conditions.

Abstract translation: 本发明涉及风力涡轮机叶片的湍流传感器。 传感器被配置成促进在传感器的位置处流过叶片的空气的湍流，该位置包括被配置成检测空气湍流的检测器。 由于与风力涡轮机叶片的相邻位置相比，传感器促进湍流，所以可以使用传感器来预测叶片接近失速状态。

公开(公告)号：WO2014187463A1

公开(公告)日：2014-11-27

申请号：PCT/DK2014/050140

申请日：2014-05-21

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： OLESEN, Ib Svend

IPC: F03D11/00 ,  F03D1/06 ,  F03D7/02

CPC classification number: F03D1/0675 ,  F03D7/0228 ,  F03D17/00 ,  F05B2240/30 ,  F05B2260/72 ,  F05B2270/1033 ,  F05B2270/1095 ,  F05B2270/328 ,  F05B2270/804 ,  Y02E10/721 ,  Y02E10/723

Abstract: The present invention relates to a method and to a wind turbine for determining the tip angle of a blade of a wind turbine rotor during rotation of the rotor. The method comprising: (a) transmitting a light signal from a first blade of the wind turbine rotor towards a second blade of the rotor; (b) receiving the light signal at the second blade of the rotor; and (c) calculating the tip angle of the first or second blade based upon characteristics of the received light signal.

Abstract translation: 本发明涉及一种用于在转子旋转期间确定风力涡轮机转子的叶片的尖角的方法和风力涡轮机。 该方法包括：（a）将来自风力涡轮机转子的第一叶片的光信号传递到转子的第二叶片; （b）在转子的第二叶片处接收光信号; 和（c）基于所接收的光信号的特性来计算第一或第二叶片的尖端角度。

公开(公告)号：WO2012139592A2

公开(公告)日：2012-10-18

申请号：PCT/DK2012/050128

申请日：2012-04-13

Applicant: VESTAS WIND SYSTEMS A/S ,  OLESEN, Ib Svend

Inventor： OLESEN, Ib Svend

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.

Abstract translation: 风力涡轮机（1）包括包括一个或多个光学传感器（12）的光学传感器系统（10），包括：传感器膜（18）; 用于照亮所述传感器膜的表面的光源（20）; 布置成分散来自光源（20）的光的光学色散元件（26）; 以及光检测器（30），用于在从所述传感器膜（18）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（30）处接收的光的波长作为传感器膜（18）的位移的函数而变化，并且光检测器基于接收到的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：WO2012007004A2

公开(公告)日：2012-01-19

申请号：PCT/DK2011/050274

申请日：2011-07-12

Applicant: Vestas Wind Systems A/S ,  OLESEN, Ib Svend

Inventor： OLESEN, Ib Svend

IPC: F03D7/04

CPC classification number: F03D17/00 ,  F03D80/40 ,  F05B2260/845 ,  F05B2270/331 ,  F05B2270/802 ,  F05B2270/808 ,  G01L1/246 ,  G01M5/0016 ,  Y02E10/72 ,  Y02E10/722

Abstract: The invention provides a method and system of detecting ice or other foreign matter on a wind turbine blade or damage to a wind turbine blade. The method in one aspect comprises: measuring twisting torque on the blade about its longitudinal axis to provide a detected torque signal;comparing a value based on the detected torque signal with a comparison value, the comparison value derived from one or more measured parameters having a predetermined relationship with the twisting torque about the longitudinal axis of the blade when the blade is operating under normal operating conditions; and determining that ice or other foreign matter is on the blade or that the blade is damaged if the value based on the detected torque signal differs from the comparison value by more than a predetermined amount. Wind turbine blades are designed such that any change in the shape of the blade reduces twisting torque on the blades significantly. Torque about the longitudinal axis of the blade can therefore be used as a sensitive indicator of ice on the blade and of damage to the blade.

Abstract translation: 本发明提供了一种在风力涡轮机叶片上检测冰或其它异物或损坏风力涡轮机叶片的方法和系统。 该方法包括：测量刀片围绕其纵向轴线的扭转扭矩以提供检测到的扭矩信号;将基于检测到的扭矩信号的值与比较值进行比较，从具有一个或多个测量参数的一个或多个测量参数导出的比较值 当叶片在正常操作条件下操作时，围绕叶片的纵向轴线的扭转扭矩的预定关系; 并且如果基于检测到的扭矩信号的值与比较值不同而确定冰或其它异物在叶片上或者叶片损坏了多于预定量。 风力涡轮机叶片被设计成使得叶片的形状的任何改变显着降低了叶片上的扭转扭矩。 因此，关于叶片的纵向轴线的扭矩因此可以用作叶片上的冰的敏感指示器和叶片的损坏。

公开(公告)号：WO2017137051A1

公开(公告)日：2017-08-17

申请号：PCT/DK2017/050036

申请日：2017-02-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GLAVIND, Lars ,  OLESEN, Ib Svend ,  THØGERSEN, Morten ,  KIIB, Kristian ,  NIELSEN, Johnny

IPC: F03D7/02 ,  F03D17/00

CPC classification number: F03D7/0204 ,  F03D7/0264 ,  F05B2260/845 ,  F05B2270/329 ,  F05B2270/809 ,  Y02E10/723

Abstract: A yaw sensor for a wind turbine is described. The yaw sensor comprises a plurality of rotary switches, each configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switches each being operable to activate and deactivate respective associated electrical contacts in dependence on an amount of yaw rotation of the nacelle relative to a start position. Each electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved. The first yaw rotation ranges of the electrical contacts do not overlap each other between the start position and a first rotational position in a first rotational direction from the start position, and do not overlap each other between the start position and a second rotational position in a second rotational direction from the start position opposite to the first rotational direction. All of the electrical contacts are activated at the first rotational position and the second rotational position. The electrical contacts each generate a respective electrical signal when active. The activation of one or more of the electrical contacts between the first and second rotational positions confirms that the rotary switches are operating correctly, reducing the requirement for regular safety checks, and permitting yaw sensor supervision to be conducted by comparing pulses generated by the electrical contacts with the output of an angular encoder.

Abstract translation: 描述了用于风力涡轮机的偏航传感器。 偏航传感器包括多个旋转开关，每个旋转开关被配置为耦合到风力涡轮机机舱的偏航驱动齿轮箱，每个旋转开关可操作以根据 机舱相对于起始位置。 每个电触点在相对于起始位置的多个第一偏转旋转范围处起作用，并且在相对于起始位置的多个第二偏航旋转范围处不起作用，第一和第二偏转旋转范围被交错。 电触头的第一偏转旋转范围在起始位置和第一旋转位置之间在从起始位置起的第一旋转方向上彼此不重叠，并且在起始位置和第二旋转位置之间彼此不重叠 第二旋转方向从与第一旋转方向相反的起始位置开始。 所有电触点在第一旋转位置和第二旋转位置被激活。 电触点各自在激活时产生相应的电信号。 在第一和第二旋转位置之间的一个或多个电触点的激活确认了旋转开关正确地工作，减少了对常规安全检查的要求，并且允许通过比较由电触点产生的脉冲来进行偏航传感器监视 与角度编码器的输出。

公开(公告)号：WO2016095926A1

公开(公告)日：2016-06-23

申请号：PCT/DK2015/050399

申请日：2015-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： OLESEN, Ib Svend

IPC: F03D7/02 ,  F03D1/06

CPC classification number: F03D1/0633 ,  F03D7/0224 ,  F03D17/00 ,  F05B2240/30 ,  F05B2260/74 ,  Y02E10/721 ,  Y02E10/723

Abstract: A method of determining a twist angle of a wind turbine blade, the method comprising providing first and second transmitters on the wind turbine blade, the first transmitter being spaced apart from a receiver by a first distance, and the second transmitter being spaced 5 apart from the receiver by a second distance, the transmitters being arranged such that twisting of the blade causes an increase in one of the first or second distances and a decrease in the other of the first or second distances; transmitting a blinking signal from each of the first and second transmitters towards the receiver, the blinking signals having a blinking frequency; varying the blinking frequency of the blinking signals; monitoring the 10 amplitude of the blinking signal received by the receiver as the blinking frequency is varied; determining a particular blinking frequency that results in an increased amplitude of the blinking signal received by the receiver; and using the determined particular blinking frequency to calculate the blade twist angle.

Abstract translation: 一种确定风力涡轮机叶片的扭转角度的方法，所述方法包括在所述风力涡轮机叶片上提供第一和第二发射器，所述第一发射器与接收器间隔开第一距离，并且所述第二发射器与 所述发射器布置成使得所述叶片的扭转导致所述第一或第二距离中的一个距离的增加和所述第一或第二距离中的另一个的减小; 从所述第一发射机和所述第二发射机中的每一个向所述接收机发送闪烁信号，所述闪烁信号具有闪烁频率; 改变闪烁信号的闪烁频率; 当闪烁频率变化时，监视由接收机接收的闪烁信号的10幅度; 确定导致由接收器接收的闪烁信号的幅度增加的特定闪烁频率; 并使用确定的特定闪烁频率来计算叶片扭转角。

公开(公告)号：WO2016095925A1

公开(公告)日：2016-06-23

申请号：PCT/DK2015/050398

申请日：2015-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： OLESEN, Ib Svend

IPC: F03D80/00

CPC classification number: F03D17/00 ,  F03D1/06 ,  F05B2240/221 ,  F05B2240/60 ,  F05B2270/331 ,  F05B2270/807 ,  F05B2270/821 ,  Y02E10/721

Abstract: A method of determining the shape of at least part of a wind turbine blade during operation of the wind turbine, the method comprising measuring first and second values of acceleration at one or more locations on the blade, the first and second values of acceleration being in substantially mutually perpendicular directions, and determining a shape parameter of the blade based upon the relative magnitudes of the measured first and second values of acceleration at the one or more locations.

Abstract translation: 一种在风力涡轮机操作期间确定风力涡轮机叶片的至少一部分的形状的方法，所述方法包括测量叶片上的一个或多个位置处的加速度的第一值和第二值，第一和第二加速度值在 基本上相互垂直的方向，并且基于所测量的在一个或多个位置处的加速度的第一值和第二值的相对大小来确定叶片的形状参数。

公开(公告)号：WO2013097852A1

公开(公告)日：2013-07-04

申请号：PCT/DK2012/050461

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 ,  F03D11/00

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 fibre-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每个都具有多个光纤压力变化传感器，其可以检测失速状态的开始。 失速状态传感器的输出被输入到失速计数电路，每当收到失速指示时，该停止计数电路增加失速计数信号。 失速计数信号随时间呈指数衰减，并且将当前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余量的值。 然后从失速余量确定尖端速度对风速比λ与俯仰角参考θ的λ曲线。

公开(公告)号：WO2013083135A1

公开(公告)日：2013-06-13

申请号：PCT/DK2012/050448

申请日：2012-12-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： OLESEN, Ib Svend

IPC: G01P13/02 ,  G01P5/20 ,  F03D7/02 ,  G01S17/50

CPC classification number: G01P13/02 ,  F03D17/00 ,  F05B2270/321 ,  F05B2270/804 ,  G01N21/53 ,  G01P5/20 ,  G01S17/50 ,  G01S17/95 ,  Y02A90/19

Abstract: 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.

Abstract translation: 本发明涉及一种用于确定相对于旋转或固定的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 其脉冲时间最长或给定时间内的脉冲数最少。

公开(公告)号：WO2017121433A1

公开(公告)日：2017-07-20

申请号：PCT/DK2017/050003

申请日：2017-01-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GLAVIND, Lars ,  GREGERSEN, Kristian Kiib ,  OLESEN, Ib Svend ,  NIELSEN, Johnny

IPC: F03D7/02 ,  F03D17/00

CPC classification number: F03D17/00 ,  F03D7/0204 ,  Y02E10/723

Abstract: A yaw sensor for a wind turbine is described. The yaw sensor comprises a rotary switch, configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switch being operable to activate and deactivate an electrical contact in dependence on an amount of yaw rotation of the nacelle relative to a start position. The electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved, at least some of the first yaw rotation ranges having different lengths from each other and/or at least some of the second yaw rotation ranges having different lengths from each other. The electrical contact generates an electrical signal when active.

Abstract translation: 描述了用于风力涡轮机的偏航传感器。 所述偏航传感器包括旋转开关，所述旋转开关被配置为联接到风力涡轮机机舱的偏航驱动齿轮箱，所述旋转开关可操作以根据所述机舱的偏航旋转量相对于起始点的启动和停用电触点 位置。 电触点在相对于起始位置的多个第一偏航旋转范围处起作用，并且相对于起始位置在多个第二偏航旋转范围处不起作用，第一和第二偏航旋转范围被交错，至少一些 所述第一偏航旋转区域具有彼此不同的长度和/或所述第二偏航旋转区域中的至少一些具有彼此不同的长度。 电触点在激活时产生电信号。