WIND FARM WITH FAST LOCAL REACTIVE POWER CONTROL
    21.
    发明申请
    WIND FARM WITH FAST LOCAL REACTIVE POWER CONTROL 有权
    具有快速本地反应动力控制的风力农场

    公开(公告)号:US20150088326A1

    公开(公告)日:2015-03-26

    申请号:US14397441

    申请日:2013-04-29

    Applicant: Senvion SE

    Inventor: Jens Fortmann

    Abstract: Wind farm comprising a farm master (1) and a plurality of wind energy installations (4). The farm master (1) has a controller (15) with an input for a control parameter for power supplied to a grid and transmits desired value specifications to a local controller (5) of the wind energy installations (4). According to the invention, the local controller (5) has dual structure and comprises a desired value channel (6), to which the desired value specification is applied by the farm master (1) and which is designed to output a stationary reactive power desired value, and a responsive channel (7) comprising an autonomous controller (75), to which no desired value specification is applied by the farm master (1) and to which an actual voltage of the particular wind energy installation (4) is applied via a washout filter (71). The autonomous controller (75) with the washout filter (71) enables a fast and dependent response to transient disturbances, in particular voltage spikes and voltage dips as a result of a short circuit. The individual wind energy installation and the wind farm as a whole therefore gain a behaviour which is identical to a synchronous generator and is very favourable for grid stability in the event of voltage disturbances.

    Abstract translation: 风电场包括农场主(1)和多个风能设备(4)。 农场主(1)具有控制器(15),其具有用于供电到电网的功率的控制参数的输入,并将期望的值规格发送到风能设备(4)的本地控制器(5)。 根据本发明,本地控制器(5)具有双重结构,并且包括期望值通道(6),农场主(1)应用期望值规范,并且被设计成输出所需的固定无功功率 值和响应通道(7),其包括自主控制器(75),农场主机(1)不对其施加期望的值规范,并且经由所述自动控制器(75)施加特定风能设备(4)的实际电压 冲洗过滤器(71)。 具有冲洗滤波器(71)的自主控制器(75)能够对短路造成的瞬态干扰,特别是电压尖峰和电压下降产生快速和依赖的响应。 因此,单个风力发电装置和风电场整体上获得与同步发电机相同的行为,并且在电压扰动的情况下非常有利于电网稳定性。

    Wind farm power control based on matrix reflecting a power load distribution between individual wind turbines
    22.
    发明授权
    Wind farm power control based on matrix reflecting a power load distribution between individual wind turbines 有权
    基于反映单个风力发电机之间的电力负荷分布的矩阵的风电场功率控制

    公开(公告)号:US08897922B2

    公开(公告)日:2014-11-25

    申请号:US13008162

    申请日:2011-01-18

    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。

    WIND TURBINE BLADE CONTROL METHOD
    23.
    发明申请
    WIND TURBINE BLADE CONTROL METHOD 有权
    风力涡轮机叶片控制方法

    公开(公告)号:US20140334928A1

    公开(公告)日:2014-11-13

    申请号:US14365375

    申请日:2012-12-05

    Abstract: A control method for a wind turbine, in particular for a wind turbine blade is described. The control method makes use of the blade mode shapes, or natural vibration shapes, of the blade to detect the excitement level of the blade natural vibrations, and controls active lift devices on the blade in an effort to reduce the excitement levels, to reduce loading in the blade and the overall wind turbine structure. There is also provided a method of designing a wind turbine blade for use in such a method.

    Abstract translation: 描述了风力涡轮机的控制方法,特别是风力涡轮机叶片的控制方法。 控制方法利用叶片的叶片模式形状或天然振动形状来检测叶片自然振动的兴奋程度,并且控制叶片上的主动提升装置,以减少兴奋水平,减少载荷 在叶片和整体风力涡轮机结构中。 还提供了一种设计用于这种方法的风力涡轮机叶片的方法。

    Method of controlling a wind power plant
    24.
    发明授权
    Method of controlling a wind power plant 有权
    控制风力发电厂的方法

    公开(公告)号:US08821108B2

    公开(公告)日:2014-09-02

    申请号:US13001257

    申请日:2009-06-30

    Abstract: It is presented a method for controlling the instantaneous power output from a wind power plant. Wind speed and wind directions are determined, wherein an upper limit power output for the specific wind speed and wind direction is determined from a previously measured power output value at the same wind speed and wind direction, and wherein the power output of the wind power plant is controlled based on the determined upper limit power output. A wind power plant is also presented.

    Abstract translation: 提出了一种控制风力发电厂瞬时功率输出的方法。 确定风速和风向,其中根据相同风速和风向上的先前测量的功率输出值确定用于特定风速和风向的上限功率输出,并且其中风力发电厂的功率输出 基于确定的上限功率输出进行控制。 还出示了风力发电厂。

    Methods for operating a wind turbine
    26.
    发明授权
    Methods for operating a wind turbine 有权
    操作风力发电机的方法

    公开(公告)号:US08738192B2

    公开(公告)日:2014-05-27

    申请号:US13720441

    申请日:2012-12-19

    Abstract: A method for operating a wind turbine having at least one blade includes determining an ambient air operating envelope and controlling a power output of the wind turbine at least partially based on the determined ambient air operating envelope. Determining an ambient air operating envelope includes measuring at least one of an ambient air temperature, an ambient air pressure, an ambient air humidity, and wind turbine power output. The method also includes comparing at least one of a measured ambient air temperature, a measured ambient air humidity and a measured ambient air pressure to predetermined ambient air temperature, pressure and humidity values. The method further includes referencing the predetermined ambient air temperature, pressure and humidity values to at least one operational parameter of the wind turbine. The method also includes determining if an existing wind turbine power output is within a range associated with the determined ambient air operating envelope.

    Abstract translation: 用于操作具有至少一个叶片的风力涡轮机的方法包括至少部分地基于所确定的环境空气操作外壳来确定环境空气操作外壳和控制风力涡轮机的功率输出。 确定环境空气操作外壳包括测量环境空气温度,环境空气压力,环境空气湿度和风力涡轮机功率输出中的至少一个。 该方法还包括将测量的环境空气温度,测量的环境空气湿度和测量的环境空气压力中的至少一个与预定的环境空气温度,压力和湿度值进行比较。 该方法还包括将预定的环境空气温度,压力和湿度值参考到风力涡轮机的至少一个操作参数。 该方法还包括确定现有风力涡轮机功率输出是否在与所确定的环境空气操作外壳相关联的范围内。

    Method of reducing a structural unbalance in a wind turbine rotor and device for performing the method
    27.
    发明授权
    Method of reducing a structural unbalance in a wind turbine rotor and device for performing the method 失效
    降低风力涡轮机转子的结构不平衡的方法和执行该方法的装置

    公开(公告)号:US08714924B2

    公开(公告)日:2014-05-06

    申请号:US13893641

    申请日:2013-05-14

    Applicant: Per Egedal

    Inventor: Per Egedal

    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。

    System, Device, and Method for Adjusting Wind Turbine Component Workload
    28.
    发明申请
    System, Device, and Method for Adjusting Wind Turbine Component Workload 有权
    用于调整风力发电机组件工作负载的系统,设备和方法

    公开(公告)号:US20130272878A1

    公开(公告)日:2013-10-17

    申请号:US13976674

    申请日:2010-12-30

    Applicant: Wei Zhu

    Inventor: Wei Zhu

    Abstract: A system, a device and a method for controlling an operation of a wind turbine (100) based on a wind turbine component workload. The system includes a control device (120) that is configured to actuate a wind turbine component (130). The system also includes a wind turbine controller (205) that is coupled in communication with the control device (120) and configured to determine a workload associated with the wind turbine component (130) based at least in part on one or more actuations of the wind turbine component (130) by the control device (120) within a time period. The wind turbine controller (205) is also configured to calculate an operating threshold value based at least in part on the calculated workload and to operate the wind turbine component (130) by the control device (120) based on the calculated operating threshold value.

    Abstract translation: 一种用于基于风力涡轮机部件工作负载来控制风力涡轮机(100)的操作的系统,装置和方法。 该系统包括配置成致动风力涡轮机部件(130)的控制装置(120)。 该系统还包括风力涡轮机控制器(205),该风力涡轮机控制器(205)与控制装置(120)相连接并被配置为至少部分地基于风力涡轮机组件(130)的一个或多个动作来确定与风力涡轮机部件(130)相关联的工作负载 风力涡轮机部件(130)由控制装置(120)在一段时间内。 风力涡轮机控制器(205)还被配置为至少部分地基于所计算的工作量来计算操作阈值,并且基于所计算的操作阈值由控制装置(120)操作风力涡轮机部件(130)。

    WIND ENERGY POWER PLANT EQUIPPED WITH AN OPTICAL VIBRATION SENSOR
    30.
    发明申请
    WIND ENERGY POWER PLANT EQUIPPED WITH AN OPTICAL VIBRATION SENSOR 有权
    风力发电厂配有光学振动传感器

    公开(公告)号:US20130078095A1

    公开(公告)日:2013-03-28

    申请号:US13634533

    申请日:2011-03-10

    Inventor: Ib Svend Olesen

    Abstract: A wind energy power plant optical vibration sensor is described, using two light sources 15, 16 that emit light at different respective frequencies. The light from the first light source falls on a surface 44 of the wind energy power plant at a detection site. Movements in the surface result in changes to the phase of the light reflected back from the surface which can be detected by mixing the first light with the light emitted from the second light source. The difference in frequencies between the two light sources results in a beating of the resulting interference signal, whereas movements in the sensor surface result in changes in the phase timing and frequency of the beats.

    Abstract translation: 描述了使用以不同的相应频率发光的两个光源15,16的风力发电厂光学振动传感器。 来自第一光源的光在检测部位落在风力发电厂的表面44上。 表面上的运动导致从表面反射回来的光的相位变化,这可以通过将第一光与从第二光源发射的光混合来检测。 两个光源之间的频率差导致所得到的干扰信号的跳动,而传感器表面中的移动导致相位定时和频率的改变。

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