公开(公告)号：US08249753B2

公开(公告)日：2012-08-21

申请号：US12600095

申请日：2008-04-28

Applicant: Jochen Cleve ,  Per Egedal ,  Peder Bay Enevoldsen ,  Martin Greiner ,  Søren Hjort ,  Esther Meyer

Inventor： Jochen Cleve ,  Per Egedal ,  Peder Bay Enevoldsen ,  Martin Greiner ,  Søren Hjort ,  Esther Meyer

IPC: G05D3/12 ,  F03D9/00

CPC classification number: F03D7/048 ,  F03D7/043 ,  F05B2270/1033 ,  F05B2270/20 ,  F05B2270/32 ,  F05B2270/321 ,  Y02E10/723

Abstract: A method and a device for operating a wind farm with a plurality of wind turbines are provided. According to the method, operating parameters of the wind turbines of the wind farm are adjusted according to an optimization goal, the optimization goal being the maximum value of the total output of the wind farm produced from the sum of all individual outputs of the wind turbines. The optimization goal differs from conventional optimization goals where the respective individual outputs of the wind turbines are optimized without taking the overall output into consideration.

Abstract translation: 提供了一种用于操作具有多个风力涡轮机的风力发电场的方法和装置。 根据该方法，根据优化目标调整风电场的风力发电机的运行参数，优化目标是从风力发电机的所有单独输出的总和产生的风力发电场总输出的最大值 。 优化目标不同于常规优化目标，其中优化风力涡轮机的各个输出，而不考虑总体输出。

公开(公告)号：US08246304B2

公开(公告)日：2012-08-21

申请号：US13288200

申请日：2011-11-03

Applicant: Per Egedal

Inventor： Per Egedal

IPC: F03B3/12

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：US08242617B2

公开(公告)日：2012-08-14

申请号：US12502550

申请日：2009-07-14

Applicant: Martin Bjerge ,  Per Egedal

Inventor： Martin Bjerge ,  Per Egedal

IPC: F03D9/00 ,  H02P9/04

CPC classification number: F03D7/043 ,  F03D7/0272 ,  F03D7/0296 ,  F05B2260/96 ,  F05B2270/335 ,  Y02E10/723

Abstract: A method and an arrangement for the damping of tower-oscillations are provided. The method for the damping of tower-oscillations includes transforming a rotation into electrical power using a generator, which is located on top of the tower. The electrical power is transformed from AC to DC and back to AC by a converter. A power-reference-signal is used by the converter to control the delivered electrical power. A variable power-offset-signal is added to the power-reference-signal before it is used for the control. The variable power-offset-signal is based on a mean value of the power-reference-signal and a side-to-side-oscillation of the tower.

Abstract translation: 提供了一种用于阻尼塔振荡的方法和装置。 用于阻尼塔振荡的方法包括使用位于塔顶部的发电机将旋转转换成电力。 电力由交流转换为直流电并通过转换器转换回交流电。 转换器使用电源参考信号来控制传送的电力。 在将其用于控制​​之前，将可变功率偏移信号添加到电源参考信号。 可变功率偏移信号基于功率参考信号的平均值和塔的侧向振荡。

公开(公告)号：US20120186343A1

公开(公告)日：2012-07-26

申请号：US13497075

申请日：2009-09-21

Applicant: Per Egedal

Inventor： Per Egedal

IPC: G01M1/22 ,  G01M1/32

CPC classification number: G01M1/36 ,  F03D13/35 ,  Y02E10/72

Abstract: It is described a method for balancing a rotor mounted on a hub of a wind turbine. The method includes measuring a parameter value of a parameter being indicative of the revolution frequency components of the rotor and/or of a generator of the wind turbine during operation of the wind turbine, calculating a change of the spatial mass distribution of the rotor based on the parameter value of the parameter, which change is needed for balancing the rotor, and balancing the spatial mass distribution of the rotor by using at least one balancing weight element being attachable to at least one blade of the rotor based on the calculated change of the spatial mass distribution. It is further described a system for balancing a rotor, a wind turbine, a computer program and a computer-readable medium, which are all adapted for carrying out the above described balancing method.

Abstract translation: 描述了一种用于平衡安装在风力涡轮机的轮毂上的转子的方法。 该方法包括测量在风力涡轮机运行期间指示转子和/或风力涡轮机的发电机的转频分量的参数的参数值，计算转子的空间质量分布的变化，基于 所述参数的参数值，其用于平衡转子所需的变化，以及通过使用至少一个平衡重量元件平衡转子的空间质量分布，所述至少一个平衡重量元件可基于计算出的转子的改变而附接到所述转子的至少一个叶片 空间质量分布。 进一步描述了用于平衡转子，风力涡轮机，计算机程序和计算机可读介质的系统，其均适于执行上述平衡方法。

公开(公告)号：US20120146331A1

公开(公告)日：2012-06-14

申请号：US13306059

申请日：2011-11-29

Applicant: Per Egedal ,  Dennis Soebye Jensen

Inventor： Per Egedal ,  Dennis Soebye Jensen

IPC: H02P9/04

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：US20120091713A1

公开(公告)日：2012-04-19

申请号：US13248073

申请日：2011-09-29

Applicant: Per Egedal ,  Rune Rubak

Inventor： Per Egedal ,  Rune Rubak

IPC: H02P9/04

CPC classification number: F03D7/0224 ,  F03D7/028 ,  F03D7/042 ,  F05B2260/71 ,  F05B2260/84 ,  F05B2270/101 ,  F05B2270/1033 ,  F05B2270/109 ,  F05B2270/1095 ,  F05B2270/322 ,  F05B2270/327 ,  F05B2270/331 ,  Y02E10/723

Abstract: A method for adjusting a power parameter of a wind turbine is disclosed. The method includes determining a load parameter indicative of a mechanical load of the wind turbine; estimating a turbulence of a wind speed based on the determined load parameter; and adjusting the power parameter relating to a power of the wind turbine based on the estimated turbulence. A system for adjusting a power parameter of a wind turbine is also described.

Abstract translation: 公开了一种调整风力发电机功率参数的方法。 该方法包括确定指示风力涡轮机的机械载荷的载荷参数; 基于确定的负载参数估计风速的湍流; 以及基于所估计的湍流来调整与所述风力涡轮机的功率相关的功率参数。 还描述了一种用于调整风力涡轮机的功率参数的系统。

公开(公告)号：US08105029B2

公开(公告)日：2012-01-31

申请号：US12386076

申请日：2009-04-14

Applicant: Per Egedal ,  Rune Rubak ,  Henrik Stiesdal

Inventor： Per Egedal ,  Rune Rubak ,  Henrik Stiesdal

IPC: F01D7/00 ,  B63H3/00 ,  B64C11/00 ,  B64C27/00 ,  F03B7/00

CPC classification number: F03D7/046 ,  F03D7/022 ,  F05B2260/821 ,  F05B2270/32 ,  F05B2270/321 ,  F05B2270/329 ,  F05B2270/331 ,  F05B2270/404 ,  Y02E10/723

Abstract: A method an apparatus of automatically controlling a wind turbine re provided. of: A time-series of measurement values of the aerodynamic flow property of the wind turbine rotor blade is determined; a predictive wind field model representing a structure of a wind field acting on the wind turbine rotor blade is generated based on the time-series of measurement values, and a control value is generated based on the wind-field model.

Abstract translation: 一种提供自动控制风力涡轮机的装置的方法。 确定风力涡轮机转子叶片的空气动力学流动性的时间序列的测量值; 基于测量值的时间序列生成表示作用在风力涡轮机转子叶片上的风场的结构的预测风场模型，并且基于风场模型生成控制值。

公开(公告)号：US08044670B2

公开(公告)日：2011-10-25

申请号：US12381496

申请日：2009-03-12

Applicant: Martin Bjerge ,  Per Egedal

Inventor： Martin Bjerge ,  Per Egedal

IPC: G01R27/28

CPC classification number: G01H13/00 ,  F03D13/20 ,  F05B2260/80 ,  F05B2260/83 ,  F05B2260/96 ,  Y02E10/728

Abstract: An apparatus for determining a resonant frequency of a wind turbine tower is provided. The apparatus includes a processing unit configured to receive an acceleration measurement value, the acceleration measurement value representative of the acceleration of the wind turbine tower in the direction parallel to a rotor rotational axis of the wind turbine and/or in the direction perpendicular to both the rotor rotational axis and the tower axis of the wind turbine. The apparatus includes a memory configured to store a series of acceleration measurement values, and the processing unit includes a Fourier transform module configured to calculate a spectral vector based on calculating a convolution-based fast Fourier transform of the series of acceleration measurement values, and includes a resonant frequency calculation module configured to calculate the tower resonant frequency based on the calculated spectral vector.

Abstract translation: 提供了一种用于确定风力涡轮机塔架的谐振频率的装置。 该装置包括处理单元，其被配置为接收加速度测量值，加速度测量值代表风力涡轮机塔架在与风力涡轮机的转子旋转轴线平行的方向上的加速度和/或垂直于风力涡轮机的方向的方向 转子旋转轴和风力涡轮机的塔轴。 该装置包括被配置为存储一系列加速度测量值的存储器，并且处理单元包括傅里叶变换模块，其被配置为基于计算一系列加速度测量值的基于卷积的快速傅里叶变换来计算频谱矢量，并且包括 谐振频率计算模块，被配置为基于所计算的频谱矢量来计算塔架谐振频率。

公开(公告)号：US08033788B2

公开(公告)日：2011-10-11

申请号：US12350357

申请日：2009-01-08

Applicant: Per Egedal ,  Henrik Stiesdal

Inventor： Per Egedal ,  Henrik Stiesdal

IPC: B63H3/00 ,  B64C11/00 ,  B64C27/00 ,  F03B7/00 ,  G01L1/00 ,  G01L3/00 ,  G01L5/00

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 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来获得第一传感器的值和第二传感器的至少一个测量值; 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：US20110150648A1

公开(公告)日：2011-06-23

申请号：US12974240

申请日：2010-12-21

Applicant: Jimmi Andersen ,  Per Egedal

Inventor： Jimmi Andersen ,  Per Egedal

IPC: F03D11/00 ,  G01L3/10

CPC classification number: F03D17/00 ,  F05B2270/331 ,  F05B2270/808 ,  F05B2280/5008 ,  Y02E10/721

Abstract: A measurement arrangement for measuring a deflection of a wind turbine rotor blade is provided. The measurement arrangement includes a magnetostrictive sensor, which includes a first sensor part and a second sensor part, a first support structure, which is adapted to be mounted to a first portion of the rotor, wherein the first sensor part is mounted to the first support structure, and a second support structure, which may be mounted to a second portion of the rotor, wherein the second sensor part is mounted to the second support structure and wherein either or both the first portion and the second portion is a portion of the blade. The magnetostrictive sensor measures the relative spatial position between the first sensor part and the second sensor part. A method for measuring a blade deflection and a wind turbine rotor which includes the described blade deflection measurement arrangement are also provided.

Abstract translation: 提供了一种用于测量风力涡轮机转子叶片的偏转的测量装置。 测量装置包括磁致伸缩传感器，其包括第一传感器部分和第二传感器部分，第一支撑结构，其适于安装到转子的第一部分，其中第一传感器部分安装到第一支撑件 结构和第二支撑结构，其可以安装到转子的第二部分，其中第二传感器部分安装到第二支撑结构，并且其中第一部分和第二部分中的任一个或第二部分是叶片的一部分 。 磁致伸缩传感器测量第一传感器部分和第二传感器部分之间的相对空间位置。 还提供了一种用于测量叶片偏转的方法和包括所述叶片偏转测量装置的风力涡轮机转子。