公开(公告)号：US20090068013A1

公开(公告)日：2009-03-12

申请号：US12283058

申请日：2008-09-09

Applicant: Bo Birkemose ,  Per Egedal

Inventor： Bo Birkemose ,  Per Egedal

IPC: F03D7/02

CPC classification number: F03D7/024 ,  F03D7/0204 ,  F03D7/0224 ,  F03D7/0292 ,  F03D7/044 ,  F05B2260/70 ,  F05B2270/1095 ,  F05B2270/329 ,  Y02E10/723

Abstract: A method for reducing the loads acting on a wind turbine yaw system due to yawing moments which are induced to the yaw system by a rotor which comprises at least one rotor blade with a pitch control system is provided. In the method, the yawing moment which is induced to the yaw system by the rotor is determined and the pitch of the at least one rotor blade is set based on the detected yawing moment such that the determined yawing moment is reduced.

Abstract translation: 提供一种用于减少作用在风力涡轮机偏航系统上的负载的方法，因为由包括至少一个具有变桨控制系统的转子叶片的转子感应到偏航系统的偏转力矩。 在该方法中，确定由转子感应到偏航系统的偏转力矩，并且基于检测到的横摆力矩来设定至少一个转子叶片的俯仰，使得确定的偏转力矩减小。

公开(公告)号：US20080247873A1

公开(公告)日：2008-10-09

申请号：US12080459

申请日：2008-04-03

Applicant: Per Egedal

Inventor： Per Egedal

IPC: F03D7/00 ,  G01M1/16 ,  F01D7/00

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：US09790921B2

公开(公告)日：2017-10-17

申请号：US13248073

申请日：2011-09-29

Applicant: Per Egedal ,  Rune Rubak

Inventor： Per Egedal ,  Rune Rubak

IPC: H02P9/04 ,  F03D7/02 ,  F03D7/04

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.

公开(公告)号：US08587140B2

公开(公告)日：2013-11-19

申请号：US12620904

申请日：2009-11-18

Applicant: Per Egedal ,  Andreas Groth Knudsen

Inventor： Per Egedal ,  Andreas Groth Knudsen

IPC: H02P9/00

CPC classification number: G05B13/027 ,  Y02E10/723

Abstract: A method for estimating an achievable power production of a wind turbine, which is operated with a reduced power set point is provided. The method includes determining the values of at least two parameters, inputting the values of the at least two parameters into a neural network, and outputting an output value from the neural network. The at least two parameters are indicative of an operating condition of the wind turbine. Thereby, the output value is an estimate of the achievable power production of the wind turbine. A control system which is adapted to carry out the described power estimation method is also provided. Furthermore, a wind turbine which uses the control system adapted to carry out the described power estimation method is provided.

Abstract translation: 提供了一种用于估计以减小的功率设定点操作的风力涡轮机的可实现的功率产生的方法。 该方法包括确定至少两个参数的值，将至少两个参数的值输入到神经网络中，以及从神经网络输出输出值。 该至少两个参数表示风力涡轮机的运行状态。 因此，输出值是风力涡轮机的可实现的功率产生的估计。 还提供了适于执行所述功率估计方法的控制系统。 此外，提供了使用适于执行所述功率估计方法的控制系统的风力涡轮机。

公开(公告)号：US20130300116A1

公开(公告)日：2013-11-14

申请号：US13874518

申请日：2013-05-01

Applicant: Per Egedal ,  Sathees Kumar

Inventor： Per Egedal ,  Sathees Kumar

IPC: H02P9/08

CPC classification number: H02P9/08 ,  F03D7/026 ,  F03D7/0272 ,  F03D7/0296 ,  F03D7/048 ,  F03D9/255 ,  F03D9/257 ,  F05B2270/327 ,  H02J3/386 ,  H02P9/007 ,  H02P21/05 ,  H02P23/04 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763

Abstract: A method for damping an oscillation of a rotational speed of a shaft of a wind turbine is described. A converter is connected between a generator and a wind turbine output terminal. The rotational speed of the shaft or the generator is measured. A DC-link voltage reference varying in dependence with the rotational speed is determined. A DC-link voltage of a DC-link of the converter according to the DC-link voltage reference is controlled.

Abstract translation: 描述了用于抑制风力涡轮机的轴的转速的振荡的方法。 A转换器连接在发电机和风力涡轮机输出端子之间。 测量轴或发电机的转速。 确定根据转速变化的直流母线电压基准。 根据直流母线电压基准，转换器的直流母线的直流母线电压被控制。

公开(公告)号：US20130294911A1

公开(公告)日：2013-11-07

申请号：US13893641

申请日：2013-05-14

Applicant: Per Egedal

Inventor： Per Egedal

IPC: F03D1/00

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. A frequency component is detected resulting from the structural unbalance in the wind turbine rotor on the basis of the rotor speed signal. The multiplying the frequency component signal is multiplied by a complex correction factor. Individual pitch angle offsets are establishing for each blade of the rotor based on the magnitude and the phase and complex correction factor. Individual pitch angle offset are added to the respective pitch angles of the blades of the rotor.

Abstract translation: 公开了一种减少具有俯仰控制的风力涡轮机转子和用于执行的控制装置的结构不平衡的方法。 基于转子速度信号，由风力涡轮机转子的结构不平衡检测出频率分量。 乘以频率分量信号乘以复数校正因子。 基于幅度和相位和复杂的校正因子，为转子的每个叶片建立单独的俯仰角偏移。 单独的俯仰角偏移被加到转子叶片的相应桨距角上。

公开(公告)号：US20130249215A1

公开(公告)日：2013-09-26

申请号：US13613513

申请日：2012-09-13

Applicant: Per Egedal ,  Sathees Kumar

Inventor： Per Egedal ,  Sathees Kumar

IPC: H02P9/02

CPC classification number: H02P9/02 ,  H02J3/16 ,  H02J3/28 ,  H02J3/386 ,  Y02E10/72 ,  Y02E10/722 ,  Y02E10/763 ,  Y02E10/766 ,  Y02E40/34 ,  Y02E70/30

Abstract: The disclosure concerns a method for operating a wind farm, the wind farm includes a wind turbine, and an energy storage device, the wind farm being connected to an external grid, the method comprising determining a demanded active power, determining a demanded reactive power, determining power production of the wind turbine, and charging the energy storage device, when the power production is above the demanded active power, the demanded reactive power, or the vector sum of demanded active power and demanded reactive power. Furthermore, corresponding wind farm controllers, wind farms, program elements, and computer readable media are subject of the current disclosure.

Abstract translation: 本公开涉及一种用于操作风电场的方法，风力发电场包括风力涡轮机，以及能量存储装置，所述风力发电场连接到外部电网，所述方法包括确定所需有功功率，确定所需无功功率， 当功率生产高于所需有功功率，所需无功功率或所需有功功率和所需无功功率的矢量和时，确定风力涡轮机的功率生产和对能量存储装置的充电。 此外，相应的风电场控制器，风力发电场，程序元件和计算机可读介质是本公开的主题。

公开(公告)号：US20130161949A1

公开(公告)日：2013-06-27

申请号：US13533161

申请日：2012-06-26

Applicant: Per Egedal ,  Dragan Obradovic ,  Michael Stoettrup ,  Andrei Szabo

Inventor： Per Egedal ,  Dragan Obradovic ,  Michael Stoettrup ,  Andrei Szabo

IPC: F03D7/00

CPC classification number: F03D7/048 ,  F03D7/0292 ,  F03D9/257 ,  F05B2270/1033 ,  F05B2270/20 ,  Y02E10/723

Abstract: The disclosure relates to a method for controlling a wind farm, the wind farm includes at least two wind turbines, the method includes determining the required power, determining fatigue load versus power curves for each wind turbine, and based on the determined fatigue load versus power curves attributing different power settings to the wind turbines such that sum of the power settings of all wind turbines is equal to the required power. Furthermore, the invention concerns a park controller for controlling a wind farm and a program element for controlling a wind farm.

Abstract translation: 本公开涉及一种用于控制风力发电场的方法，所述风力发电场包括至少两个风力涡轮机，所述方法包括确定所需功率，确定每个风力涡轮机的疲劳负载与功率曲线，并且基于所确定的疲劳负载对功率 曲线将不同的功率设置归因于风力涡轮机，使得所有风力涡轮机的功率设置的总和等于所需功率。 此外，本发明涉及一种用于控制风电场的停放控制器和用于控制风电场的程序元件。

公开(公告)号：US08461709B2

公开(公告)日：2013-06-11

申请号：US13062257

申请日：2009-08-19

Applicant: Bo Birkemose ,  Per Egedal ,  Erik Groendahl

Inventor： Bo Birkemose ,  Per Egedal ,  Erik Groendahl

IPC: H02P9/48

CPC classification number: H02P9/007 ,  H02P9/02 ,  H02P2101/15

Abstract: An asynchronous power generator for a wind turbine is provided. The asynchronous power generator includes a voltage supply and a stator with stator coils supplied with an alternating voltage by the voltage supply. The voltage supply is configured to adjust the voltage supplied to the stator coils based upon an output power generated by the wind turbine. Further, a method of voltage control is provided.

Abstract translation: 提供了一种用于风力涡轮机的异步发电机。 异步发电机包括电压源和定子，定子线圈通过电压供给交流电压。 电压源被配置为基于由风力涡轮机产生的输出功率来调节提供给定子线圈的电压。 此外，提供了电压控制的方法。

公开(公告)号：US20120261917A1

公开(公告)日：2012-10-18

申请号：US13087505

申请日：2011-04-15

Applicant: Per Egedal ,  Sathees Kumar ,  Kai Skov Nielsen

Inventor： Per Egedal ,  Sathees Kumar ,  Kai Skov Nielsen

IPC: H02P9/04

CPC classification number: H02J3/38 ,  F03D7/026 ,  F03D9/257 ,  F05B2260/85 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763

Abstract: A wind turbine device having in one embodiment a diesel generator to initialize a black start in case of a blackout of an electricity network is disclosed. For performing the black start, the diesel generator provides a predetermined voltage to a power output of the wind turbine device in order to imitate the electricity network in its running state. A wind park is also disclosed, the wind park having in one embodiment at least two wind turbine devices. In one embodiment a wind park controller provides the same reference value for the phase angle φ for the at least two turbines.

Abstract translation: 一种风力涡轮机装置，在一个实施例中，公开了在电力网络中断的情况下初始化黑色起动的柴油发电机。 为了执行黑启动，柴油发电机为风力涡轮机装置的功率输出提供预定电压，以便模拟运行状态下的电网。 还公开了风力发电场，风力发电场在一个实施例中至少有两个风力涡轮机装置。 在一个实施例中，风力场控制器为相位角＆phgr; 对于至少两个涡轮机。