公开(公告)号：US20090180875A1

公开(公告)日：2009-07-16

申请号：US12350357

申请日：2009-01-08

Applicant: Per Egedal ,  Henrik Stiesdal

Inventor： Per Egedal ,  Henrik Stiesdal

IPC: F03D7/00 ,  G01L1/10

CPC classification number: F03D7/042 ,  F03D7/0292 ,  F03D17/00 ,  F05B2270/332 ,  F05B2270/334 ,  F05B2270/80 ,  F05B2270/807 ,  F05B2270/808 ,  Y02E10/723

Abstract: A method of determining fatigue load of at least one operative wind turbine, comprising: providing a transfer function that associates an obtained at least one measurement value of a first sensor to an obtained at least one measurement value of a second sensor the at least one measurement value of the first sensor and the at least one measurement value of the second sensor being obtained by use of a reference wind turbine at which the first sensor and the second sensor are located; obtaining at least one measurement value of a third sensor, wherein the third sensor is located at the at least one operative wind turbine, and wherein the third sensor corresponds in type and position to the first sensor at the reference wind turbine; calculating at least one transfer function value corresponding to the obtained at least one measurement value of the third sensor by use of the provided transfer function; calculating the fatigue load of the at least one operative wind turbine based on the calculated transfer function value.

Abstract translation: 一种确定至少一个操作风力涡轮机的疲劳载荷的方法，包括：提供传递函数，其将获得的第一传感器的至少一个测量值与获得的第二传感器的所述至少一个测量值相关联，所述至少一个测量 第一传感器的值和第二传感器的至少一个测量值通过使用第一传感器和第二传感器所在的参考风力涡轮机获得; 获得第三传感器的至少一个测量值，其中所述第三传感器位于所述至少一个有效风力涡轮机处，并且其中所述第三传感器的类型和位置对应于所述基准风力涡轮机处的所述第一传感器; 通过使用所提供的传递函数来计算与获得的所述第三传感器的至少一个测量值对应的至少一个传递函数值; 基于所计算的传递函数值来计算所述至少一个操作风力涡轮机的疲劳载荷。

公开(公告)号：US20080298963A1

公开(公告)日：2008-12-04

申请号：US12156110

申请日：2008-05-29

Applicant: Per Egedal

Inventor： Per Egedal

IPC: F03D7/00

CPC classification number: F03D7/044 ,  F03D7/0224 ,  F05B2240/31 ,  F05B2270/331 ,  F05B2270/705 ,  Y02E10/721 ,  Y02E10/723

Abstract: A method for controlling load reduction for a wind turbine rotor with rotor blades comprising an aerodynamic active element responsive to a control signal for modifying its setting is provided. The loads acting on the rotor blades in relation to the rotor's azimuth are detected and individual control signals based on a PI control system are established. Each individual control signal is a complex number containing an amplitude defining the degree of modification of the respective setting and an angle defining the phase of the modification of the respective setting with respect to the rotor's azimuth. The angle of the complex number is corrected by a phase correction factor. The elements are provided with the individual control signals. The input to the PI-control system is a complex load vector.

Abstract translation: 提供了一种用于控制具有转子叶片的风力涡轮机转子的负载降低的方法，其包括响应于用于修改其设置的控制信号的空气动力学有源元件。 检测相对于转子方位角作用在转子叶片上的负载，并建立基于PI控制系统的单独控制信号。 每个单独的控制信号是一个复数，它包含限定相应设置的修正程度的幅度和一个定义相对于转子方位角的相应设置的修改相位的角度的复数。 复数的角度通过相位校正因子来校正。 这些元件具有单独的控制信号。 PI控制系统的输入是一个复杂的负载向量。

公开(公告)号：US09249779B2

公开(公告)日：2016-02-02

申请号：US13718574

申请日：2012-12-18

Applicant: Martin Huus Bjerge ,  Per Egedal ,  Gustav Hoegh ,  Ramakrishnan Krishna ,  Hans Laurberg

Inventor： Martin Huus Bjerge ,  Per Egedal ,  Gustav Hoegh ,  Ramakrishnan Krishna ,  Hans Laurberg

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/02 ,  F03D7/0264 ,  F03D7/0276 ,  F05B2260/71 ,  F05B2270/101 ,  F05B2270/107 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/328 ,  Y02E10/723

Abstract: A method for controlling a wind turbine with a rotor and at least one rotor blade, and a control unit are disclosed. The method is characterized in adjusting a pitch angle of the rotor blade and determining the limit of an input value based on the adjusted pitch angle, wherein the input value includes information about the turbine rotational speed.

Abstract translation: 公开了一种用于控制具有转子和至少一个转子叶片的风力涡轮机的方法以及控制单元。 该方法的特征在于调整转子叶片的俯仰角并基于调节的桨距角确定输入值的极限，其中输入值包括关于涡轮转速的信息。

公开(公告)号：US09206786B2

公开(公告)日：2015-12-08

申请号：US13517803

申请日：2012-06-14

Applicant: Jimmi Andersen ,  Per Egedal ,  Dennis Soebye Jensen

Inventor： Jimmi Andersen ,  Per Egedal ,  Dennis Soebye Jensen

IPC: F03D7/02 ,  F03D11/00

CPC classification number: F03D17/00 ,  F03D7/0296 ,  F05B2260/80 ,  F05B2260/83 ,  F05B2270/333 ,  Y02E10/722 ,  Y02E10/726

Abstract: A method for acoustically monitoring a wind turbine, in particular for monitoring the existence of loose objects inside the wind turbine is provided. A sound generated in a rotating part of the wind turbine is monitored during operation of the wind turbine which sound is analyzed with respect to specific parameter values of the sound within at least one specific frequency range and if such specific parameter values are detected, a signal for possible further actions is generated. An acoustic monitoring system for a wind turbine and a re-equipment kit are also disclosed.

Abstract translation: 提供一种用于声学监测风力涡轮机的方法，特别是用于监测风力涡轮机内的松散物体的存在的方法。 在风力涡轮机的运行期间监测在风力涡轮机的旋转部分中产生的声音，该声音相对于在至少一个特定频率范围内的声音的特定参数值被分析，并且如果检测到这样的特定参数值，则信号 产生可能的进一步的动作。 还公开了一种用于风力涡轮机和再设备套件的声学监测系统。

公开(公告)号：US09194369B2

公开(公告)日：2015-11-24

申请号：US13550723

申请日：2012-07-17

Applicant: Kristian Robert Dixon ,  Siegmund Düll ,  Per Egedal ,  Thomas Esbensen ,  Volkmar Sterzing

Inventor： Kristian Robert Dixon ,  Siegmund Düll ,  Per Egedal ,  Thomas Esbensen ,  Volkmar Sterzing

IPC: F03D1/06 ,  F03D7/02

CPC classification number: F03D7/022 ,  F03D1/0675 ,  F05B2240/30 ,  Y02E10/721 ,  Y02E10/723

Abstract: A wind turbine rotor blade is equipped with an air chamber and equipped via the air chamber to route a modulation beam out of the rotor blade such that the air current along the rotor blade is changed. Thereby the laminar current is changed into a turbulent current on the one hand and its detachment and on the other hand its recreation is achieved in order to produce the laminar current. The control may occur via electrostatic actuators via a learnable control strategy based on neural forecasts, which take the complexity of the non-linear system into account and allow for the plurality of influencing factors. The stress on the rotor blades may be reduced, resulting in longer service life and reduced maintenance costs, a higher level of efficiency or quieter operation.

Abstract translation: 风力涡轮机转子叶片配备有空气室，并且经由空气室配置，以将调制光束从转子叶片引出，使得沿着转子叶片的气流被改变。 因此，一方面，层流变成湍流，并且其分离，另一方面实现其娱乐以产生层流。 该控制可以通过静电致动器通过基于神经预测的可学习的控制策略进行，其将非线性系统的复杂性考虑在内并允许多个影响因素。 可以减小转子叶片上的应力，从而延长使用寿命，降低维护成本，提高效率或更安静的操作。

公开(公告)号：US09000970B2

公开(公告)日：2015-04-07

申请号：US13362042

申请日：2012-01-31

Applicant: Jimmi Andersen ,  Per Egedal ,  Henrik Stiesdal ,  Andreas Ziroff

Inventor： Jimmi Andersen ,  Per Egedal ,  Henrik Stiesdal ,  Andreas Ziroff

IPC: H01Q15/00 ,  G01B15/06 ,  G01S3/48 ,  G01S13/42 ,  G01S13/88 ,  G01S13/75

CPC classification number: G01B15/06 ,  G01S3/48 ,  G01S13/42 ,  G01S13/75 ,  G01S13/88

Abstract: A reflector is arranged at a first position, which is assigned to a first end of the object. An antenna-system is arranged at a second position, which is assigned to a second end of the object. The antenna system contains a transmit antenna and a receive antenna, while the reflector and the antenna-system are coupled by a radio signal. The radio signal is sent from the transmit antenna via the reflector towards the receive antenna. The receive antenna is connected with an evaluation unit, which is prepared to measure the deflection between the first end of the object and the second end of the object based on the received radio signal.

Abstract translation: 反射器被布置在第一位置，其被分配给物体的第一端。 天线系统被布置在第二位置，其被分配给对象的第二端。 天线系统包含发射天线和接收天线，而反射器和天线系统通过无线电信号耦合。 无线电信号通过反射器从发射天线发射到接收天线。 接收天线与评估单元连接，评估单元准备用于基于所接收的无线电信号来测量对象的第一端和对象的第二端之间的偏移。

公开(公告)号：US08779617B2

公开(公告)日：2014-07-15

申请号：US13306059

申请日：2011-11-29

Applicant: Per Egedal ,  Dennis Soebye Jensen

Inventor： Per Egedal ,  Dennis Soebye Jensen

IPC: F03D9/00

CPC classification number: F03D7/0296 ,  F03D7/0224 ,  F03D7/0276 ,  F03D7/042 ,  F05B2260/96 ,  F05B2270/327 ,  F05B2270/328 ,  F05B2270/334 ,  F05B2270/335 ,  F05B2270/807 ,  F05D2260/96 ,  Y02E10/723

Abstract: A method for reducing vibrations of a wind turbine includes a plurality of set points characterizing set values of operation parameters of the wind turbine. The method includes measuring an acceleration force value corresponding to acceleration forces acting on the turbine, and determining whether the measured acceleration force value is above a predetermined threshold value. Furthermore, in case it is determined that the acceleration force value is above the predetermined threshold value, the set point value of at least one set point of the plurality of set points is modified in order to reduce the vibrations in such a way that a power output of the wind turbine is not reduced.

Abstract translation: 减少风力涡轮机的振动的方法包括表征风力涡轮机的运行参数的设定值的多个设定点。 该方法包括测量对应于作用在涡轮机上的加速力的加速力值，并且确定所测量的加速力值是否高于预定阈值。 此外，在确定加速力值高于预定阈值的情况下，修改多个设定点中的至少一个设定点的设定值，以便减少振动，使得功率 风力涡轮机的输出不减少。

公开(公告)号：US08600570B2

公开(公告)日：2013-12-03

申请号：US12969927

申请日：2010-12-16

Applicant: Per Egedal ,  Ole Kjaer ,  Mogens Lund

Inventor： Per Egedal ,  Ole Kjaer ,  Mogens Lund

IPC: G05D3/12 ,  F03D9/00

CPC classification number: F03D7/042 ,  F03D7/0264 ,  F05B2260/80 ,  F05B2260/821 ,  F05B2270/1011 ,  F05B2270/1016 ,  F05B2270/107 ,  F05B2270/327 ,  F05B2270/807 ,  Y02E10/723

Abstract: In one aspect, a system for triggering an emergency system of a wind turbine is described. The system comprises a sensor for sensing an acceleration value of a portion of the rotor of the wind turbine, an estimation unit coupled to the sensor, wherein the estimation unit is adapted for receiving the acceleration value from the sensor and for estimating a rotor rotational speed value of the rotor of the wind turbine based on the acceleration value, and a triggering unit coupled to the estimation unit, wherein the triggering unit is adapted for receiving the rotor rotational speed value and for triggering the emergency system, when the rotor rotational speed value exceeds a predefined limit value. Further described are a method for triggering an emergency system of a wind turbine, a wind turbine, a computer program and a computer-readable medium, which are all adapted for carrying out the triggering method.

Abstract translation: 一方面，描述了用于触发风力涡轮机的应急系统的系统。 该系统包括用于感测风力涡轮机的转子的一部分的加速度值的传感器，耦合到传感器的估计单元，其中估计单元适于从传感器接收加速度值，并用于估计转子转速 基于加速度值的风力涡轮机的转子的值，以及耦合到估计单元的触发单元，其中触发单元适于接收转子转速值并用于触发应急系统，当转子转速值 超过预定义的限制值。 进一步描述了一种用于触发风力涡轮机，风力涡轮机，计算机程序和计算机可读介质的紧急系统的方法，所述方法都适于执行触发方法。

公开(公告)号：US08506249B2

公开(公告)日：2013-08-13

申请号：US12080459

申请日：2008-04-03

Applicant: Per Egedal

Inventor： Per Egedal

IPC: F01D7/00 ,  F03D7/04

CPC classification number: F03D1/008 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/043 ,  F03D13/35 ,  F05B2260/96 ,  F05B2270/326 ,  F05B2270/327 ,  Y02E10/723

Abstract: Disclosed is a method of reducing a structural unbalance in a wind turbine rotor with pitch control and a control device for performing the method are provided. The method comprises the steps of: detecting a magnitude of the structural unbalance and its phase in relation the rotor's azimuth (θ) on the basis of a measurement of the rotor's azimuth (θ) and a measurement of the rotor speed or the generator speed (ω), establishing individual pitch angle offsets for each blade of the rotor on the basis of the magnitude and the phase, and adding the individual pitch angle offsets to the respective pitch angles of the blades of the rotor.

Abstract translation: 公开了一种减小具有俯仰控制的风力涡轮机转子中的结构不平衡的方法，并且提供了用于执行该方法的控制装置。 该方法包括以下步骤：基于转子的方位角（θ）的测量和转子速度或发电机速度的测量来检测结构不平衡及其相对于转子的方位角（θ）的相位的大小 ω），基于幅度和相位，为转子的每个叶片建立单独的俯仰角偏移，并且将各个俯仰角偏移量加到转子的叶片的相应桨距角上。

公开(公告)号：US20120200444A1

公开(公告)日：2012-08-09

申请号：US13362042

申请日：2012-01-31

Applicant: Jimmi Andersen ,  Per Egedal ,  Henrik Stiesdal ,  Andreas Ziroff

Inventor： Jimmi Andersen ,  Per Egedal ,  Henrik Stiesdal ,  Andreas Ziroff

IPC: G01S13/42

CPC classification number: G01B15/06 ,  G01S3/48 ,  G01S13/42 ,  G01S13/75 ,  G01S13/88

Abstract: A reflector is arranged at a first position, which is assigned to a first end of the object. An antenna-system is arranged at a second position, which is assigned to a second end of the object. The antenna system contains a transmit antenna and a receive antenna, while the reflector and the antenna-system are coupled by a radio signal. The radio signal is sent from the transmit antenna via the reflector towards the receive antenna. The receive antenna is connected with an evaluation unit, which is prepared to measure the deflection between the first end of the object and the second end of the object based on the received radio signal.

Abstract translation: 反射器被布置在第一位置，其被分配给物体的第一端。 天线系统被布置在第二位置，其被分配给对象的第二端。 天线系统包含发射天线和接收天线，而反射器和天线系统通过无线电信号耦合。 无线电信号通过反射器从发射天线发射到接收天线。 接收天线与评估单元连接，评估单元准备用于基于所接收的无线电信号来测量对象的第一端和对象的第二端之间的偏移。