公开(公告)号：US08511182B2

公开(公告)日：2013-08-20

申请号：US13677365

申请日：2012-11-15

Applicant: Martin Huus Bjerge ,  Per Egedal ,  Hans Laurberg

Inventor： Martin Huus Bjerge ,  Per Egedal ,  Hans Laurberg

IPC: G01L1/00

CPC classification number: F03D11/0091 ,  F03D7/00 ,  F03D7/0292 ,  F03D17/00 ,  F05B2270/1095 ,  F05B2270/332 ,  F05B2270/807 ,  F05B2270/808 ,  Y02E10/723

Abstract: A method for determining a total mechanical load of a wind turbine is provided. A present load signal indicative of a present load of a wind turbine base structure is obtained, wherein the present load acts in a present angular direction. A first present load and a second present load are derived based upon the present load signal and the present angular direction, wherein the first present load is associated with a first angular sector of the turbine and the second present load is associated with a second angular sector of the turbine. Further, a total mechanical load is derived based upon the first present load and the second present load.

Abstract translation: 提供了一种用于确定风力涡轮机的总机械负载的方法。 获得指示风力涡轮机基座结构的当前负载的当前负载信号，其中当前负载作用在当前的角度方向上。 基于当前负载信号和当前角度方向导出第一当前负载和第二当前负载，其中第一当前负载与涡轮机的第一角度扇区相关联，并且第二当前负载与第二角度扇区相关联 的涡轮。 此外，基于第一当前负载和第二当前负载导出总机械负载。

公开(公告)号：US20130031966A1

公开(公告)日：2013-02-07

申请号：US13638623

申请日：2010-06-15

Applicant: Per Egedal ,  Hans Laurberg

Inventor： Per Egedal ,  Hans Laurberg

IPC: G01M15/00

CPC classification number: F03D11/0025 ,  F03D7/042 ,  F03D80/40 ,  F05B2260/80 ,  F05B2260/96 ,  F05B2270/303 ,  F05B2270/326 ,  F05B2270/334 ,  Y02E10/722 ,  Y02E10/723

Abstract: A method for determining a mass change at a rotating blade of a wind turbine is provided. The method includes measuring a vibration quantity representative of a vibration of the wind turbine, measuring an azimuthal quantity representative of a rotation angle of the blade, determining a frequency quantity representative of a vibration frequency of the blade from the vibration quantity and the azimuthal quantity, and determining the mass change at the blade based on the frequency quantity.

Abstract translation: 提供了一种用于确定风力涡轮机的旋转叶片处的质量变化的方法。 该方法包括测量表示风力涡轮机的振动的振动量，测量表示叶片的旋转角度的方位角量，根据振动量和方位角量确定表示叶片的振动频率的频率量， 以及基于所述频率量确定所述叶片上的质量变化。

公开(公告)号：US20130022464A1

公开(公告)日：2013-01-24

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.

公开(公告)号：US08342801B2

公开(公告)日：2013-01-01

申请号：US12215373

申请日：2008-06-26

Applicant: Per Egedal

Inventor： Per Egedal

IPC: B64C11/00 ,  B64C27/00 ,  F01D5/18

CPC classification number: F03D1/001 ,  F03D13/10 ,  F03D13/20 ,  F03D13/22 ,  F03D80/50 ,  F05B2230/60 ,  F05B2230/61 ,  Y02E10/721 ,  Y02E10/728 ,  Y02P70/523

Abstract: The invention concerns a method for controlling of at least one element of a first component of a wind turbine and a control device not permanently belonging to the wind turbine wherein the control device is connected to a communication interface of the first component for supporting the mounting of the first component and a second component of the wind turbine with each other and/or for the purpose of service of the wind turbine. Moreover the invention concerns the use of the control device for controlling of at least one element of a first component of a wind turbine during the mounting of the first component and a second component of the wind turbine with each other and/or during a service procedure of the wind turbine.

公开(公告)号：US08334607B2

公开(公告)日：2012-12-18

申请号：US12632233

申请日：2009-12-07

Applicant: Per Egedal ,  Ole Kjaer

Inventor： Per Egedal ,  Ole Kjaer

IPC: F03D9/00 ,  H02P9/04

CPC classification number: F03D7/0276 ,  F03D7/0224 ,  F03D7/044 ,  F03D7/046 ,  F05B2270/101 ,  F05B2270/1071 ,  F05B2270/304 ,  F05B2270/309 ,  F05B2270/327 ,  F05B2270/337 ,  F05B2270/705 ,  Y02E10/723 ,  Y02E10/725

Abstract: A rotational speed controlling device for a wind turbine is provided. The controlling device includes a first input node for receiving a first signal, indicative of an actual rotational speed of the rotor, a second input node for receiving a second signal, indicative of a reference rotational speed for the rotor, a detection unit for detecting a defective operational state in which the wind turbine is impeded to export electrical power to an electricity network, a control unit for providing a reference signal for a characteristic operational parameter of the wind turbine based on the first signal and the second signal, and a pulse generator adapted to send a kick pulse to an integral control element of the control unit in response to the detection of the defective operational state. The characteristic operational parameter is indicative of the rotational speed of the rotor.

Abstract translation: 提供了一种用于风力涡轮机的转速控制装置。 控制装置包括：第一输入节点，用于接收指示转子的实际转速的第一信号;第二输入节点，用于接收指示转子的参考转速的第二信号;检测单元，用于检测转子 控制单元，用于基于第一信号和第二信号为风力涡轮机的特征操作参数提供参考信号;以及脉冲发生器，其中，所述风力涡轮机被阻止向电力网络输出电力;控制单元， 适于响应于所述不良操作状态的检测而向所述控制单元的整体控制元件发送踢动脉冲。 特征操作参数表示转子的转速。

公开(公告)号：US20120257967A1

公开(公告)日：2012-10-11

申请号：US13079998

申请日：2011-04-05

Applicant: Per Egedal ,  Khanh Nguyen

Inventor： Per Egedal ,  Khanh Nguyen

IPC: F03D7/04 ,  F03D7/00

CPC classification number: F03D7/0296 ,  F03D7/0224 ,  Y02E10/723

Abstract: A method for generating a blade pitch angle control signal for controlling a blade pitch angle of a rotating rotor blade for damping a rotor blade vibration, in particular an edgewise rotor blade vibration, of the rotating rotor blade is disclosed. The blade pitch angle control signal is generated such that it varies in accordance with a rotor blade vibration motion. A controller and a wind turbine are also disclosed.

Abstract translation: 公开了一种用于产生用于控制旋转的转子叶片的叶片俯仰角的叶片俯仰角控制信号的方法，用于阻止旋转叶片的转子叶片的振动，特别是绕叶转子叶片振动。 产生叶片俯仰角控制信号，使其根据转子叶片的振动运动而变化。 还公开了一种控制器和风力涡轮机。

公开(公告)号：US08206105B2

公开(公告)日：2012-06-26

申请号：US12156110

申请日：2008-05-29

Applicant: Per Egedal

Inventor： Per Egedal

IPC: B64C27/00

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改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：US08155920B2

公开(公告)日：2012-04-10

申请号：US12480068

申请日：2009-06-08

Applicant: Per Egedal

Inventor： Per Egedal

IPC: G01M1/00 ,  G06F19/00 ,  G06F17/40

CPC classification number: F03D7/042 ,  F03D17/00 ,  F05B2200/00 ,  F05B2260/845 ,  F05B2270/331 ,  F05B2270/802 ,  F05B2270/807 ,  Y02E10/723

Abstract: In one aspect, a method for the determination of a nacelle-inclination is provided. A first difference-signal is formed from the difference of a measured nacelle acceleration and an offset-value from a calibration. A second difference-signal is formed from a difference of the first difference-signal and a feedback signal. A first sum-signal is formed from adding an integrated second difference-signal with the product of the second difference signal and a factor. A second sum signal is formed from adding an integrated first sum-signal with the product of the first-sum-signal and the factor. A corrected signal is formed by a product of the second sum-signal and an equivalent tower height. A first nacelle-signal is formed by the arc-tangent of the corrected signal. A nacelle inclination is obtained from filtering the first nacelle-signal by a low-pass-filter. The feedback-signal is formed by multiplying the acceleration of gravity with the sine of the first nacelle-signal.

Abstract translation: 在一方面，提供了一种用于确定机舱倾斜度的方法。 第一差分信号由测量的机舱加速度和偏移值与校准的差异形成。 第二差分信号由第一差分信号和反馈信号的差异形成。 通过将积分的第二差分信号与第二差分信号与因子的乘积相加来形成第一和信号。 通过将积分的第一和信号与第一和信号和因子的乘积相加形成第二和信号。 校正信号由第二和信号和等效塔架高度的乘积形成。 第一机舱信号由校正信号的反正切形成。 通过低通滤波器对第一机舱信号进行滤波获得机舱倾角。 反馈信号通过将重力加速度与第一机舱信号的正弦相乘来形成。

公开(公告)号：US20120042727A1

公开(公告)日：2012-02-23

申请号：US13288200

申请日：2011-11-03

Applicant: Per Egedal

Inventor： Per Egedal

IPC: G01C19/02 ,  G01P15/14

CPC classification number: G01P3/22 ,  F03D17/00 ,  F05B2260/821 ,  F05B2270/101 ,  F05B2270/327 ,  F05B2270/329 ,  F05B2270/807 ,  G01P3/16 ,  G01P3/44 ,  G01P21/02

Abstract: A method of determining at least one rotation parameter of a wind turbine rotor rotating with a rotation speed and a phase is provided. The method includes: measuring an effective centrifugal force acting in a first pre-determined direction, which is defined in a co-ordinate system rotating synchronously with the rotor, on at least one reference object located in or at the rotor, establishing a first angular frequency representing the rotation speed of the rotor on the basis of variations in the measured effective centrifugal force due to gravitational force, establishing a second angular frequency representing the rotation speed of the rotor by use of at least one yaw rate gyro, and establishing the value of the rotation speed as the rotational parameter by correcting the second angular frequency by comparing it to the first angular frequency.

Abstract translation: 提供一种确定以转速和相位旋转的风力涡轮机转子的至少一个旋转参数的方法。 该方法包括：测量在位于转子或转子上的至少一个参考对象上在与转子同步旋转的坐标系中限定的第一预定方向上作用的有效离心力，建立第一角度 基于由重力引起的测量的有效离心力的变化，表示转子的转速的频率，通过使用至少一个偏航率陀螺仪建立表示转子的转速的第二角频率，并建立值 作为旋转参数，通过将第二角频率与第一角频率进行比较来校正第二角频率。

公开(公告)号：US20110175353A1

公开(公告)日：2011-07-21

申请号：US13008162

申请日：2011-01-18

Applicant: Per Egedal ,  Ramakrishnan Krishna

Inventor： Per Egedal ,  Ramakrishnan Krishna

IPC: H02P9/04

CPC classification number: F03D7/028 ,  F03D7/043 ,  F03D7/048 ,  F05B2240/96 ,  Y02E10/723

Abstract: A method for controlling the operation of a wind farm with a plurality of wind turbines is disclosed A setpoint vector is defined, wherein each component of the setpoint vector represents an individual power setpoint of one of the plurality of wind turbines. A dependency matrix, which reflects a desired power generation distribution between different wind turbines of the plurality of wind turbines, is determined. A power reference vector is calculated by multiplying the dependency matrix with the setpoint vector, such that the power reference vector comprises a coordinated power setpoint for each wind turbine. The operation of the wind farm is controlled based on the calculated power reference vector. A superordinate control system, a wind farm, a computer-readable medium and a program element, which are adapted for performing and/or for controlling the above described wind farm operation control method are further disclosed.

Abstract translation: 公开了一种用于控制具有多个风力涡轮机的风力发电场的操作的方法。定义设定点向量，其中所述设定点向量的每个分量表示所述多个风力涡轮机中的一个的单独的功率设定点。 确定反映多个风力涡轮机的不同风力涡轮机之间期望的发电分配的依赖矩阵。 通过将依赖矩阵与设定点向量相乘来计算功率参考矢量，使得功率参考矢量包括每个风力涡轮机的协调功率设定点。 基于计算的功率参考矢量控制风电场的运行。 还公开了适于执行和/或控制上述风电场运行控制方法的上级控制系统，风电场，计算机可读介质和程序单元。