中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

83 records (took 0.043 seconds)

    A WIND POWER PLANT WITH REDUCED LOSSES
    71.
    发明公开
    A WIND POWER PLANT WITH REDUCED LOSSES 审中-公开
    WINDKRAFTANLAGE MIT VERRINGERTEN VERLUSTEN

    公开(公告)号：EP3149325A1

    公开(公告)日：2017-04-05

    申请号：EP15724508.5

    申请日：2015-05-19

    Applicant: Vestas Wind Systems A/S

    Inventor： GARCIA, Jorge Martinez ,  KJÆR, Martin Ansbjerg ,  NAYEBI, Kouroush ,  MØLLER, Henrik ,  RAVN, Henrik Møller

    IPC: F03D7/04

    Abstract: The present invention relates to a method for controlling a wind power plant, the wind power plant comprising a plurality of wind turbine generators, each wind turbine generator comprising at least one power converter for providing active power and/or reactive power to an electrical grid, wherein the method is determining a required amount of reactive power provided by the plurality of wind turbine generators, and grouping the plurality of wind turbine generators into a first set of wind turbine generators and a second set of wind turbine generators based on a demand for reactive power; and supplying reactive power to the grid (20) from the first set of wind turbine generators and disconnecting the second set of wind turbine generators from the electrical grid (20) in response to a control demand, in order to minimize active power losses. The present invention also relates to a wind power plant arranged to perform the method.

    Abstract translation: 本发明涉及一种用于控制风力发电厂的方法，所述风力发电厂包括多个风力涡轮发电机，每个风力涡轮发电机包括至少一个用于向电网提供有功功率和/或无功功率的功率转换器， 其中所述方法是确定由所述多个风力涡轮发电机提供的无功功率的所需量，并且将所述多个风力涡轮发电机分组为第一组风力涡轮发电机和第二组风力发电机组 功率; 以及从所述第一组风力涡轮发电机向所述电网（20）提供无功功率并且响应于控制需求将所述第二组风力涡轮发电机与所述电网（20）断开，以便使有功功率损失最小化。 本发明还涉及一种布置成执行该方法的风力发电设备。

    A METHOD OF DETERMINING INDIVIDUAL SET POINTS IN A POWER PLANT CONTROLLER, AND A POWER PLANT CONTROLLER
    72.
    发明公开
    A METHOD OF DETERMINING INDIVIDUAL SET POINTS IN A POWER PLANT CONTROLLER, AND A POWER PLANT CONTROLLER 有权
    为了确定不同规模GUIDE方法的风力发电厂控制器和风力发电厂控制器的方式

    公开(公告)号：EP2896102A1

    公开(公告)日：2015-07-22

    申请号：EP13758734.1

    申请日：2013-09-03

    Applicant: Vestas Wind Systems A/S

    Inventor： BABAZADEH, Mehrdad ,  EHSANI, Saed ,  KJÆR, Martin Ansbjerg ,  MØLLER, Henrik

    IPC: H02J3/38 ,  H02J3/18 ,  H02J3/46 ,  F03D7/04

    CPC classification number: F03D7/048 ,  F03D7/00 ,  H02J3/18 ,  H02J3/28 ,  H02J3/30 ,  H02J3/32 ,  H02J3/386 ,  H02J3/46 ,  H02J3/48 ,  H02J3/50 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E10/766 ,  Y02E40/30

    Abstract: This invention relates to a method and a power plant controller arranged to carry out the method. The method is on an intelligent dispatching of the power production to wind turbines and optional compensation equipment of a wind power plant, as the power producing units of a wind power plant. The invention relates to a case where the requested produced power (both active and reactive) is less than the total capacity of the power plant, and the invention relates to utilizing this situation to dispatch set points to the wind turbines and the compensation equipment based on correction factors relating to the operating conditions of the wind park. This method may increase the wind turbines' life time, help in scheduling maintenance and expand the electrical operating range of the wind power plant.

    Abstract translation: 本发明涉及一种方法和布置成执行该方法的电厂控制器。 该方法是在规划电力生产的智能调度风力涡轮机和风力发电的可选补偿设备，风力发电设备的电力生产单位。 本发明涉及其中所请求的所产生的功率（包括有功和无功）小于所述发电设备的总容量的情况下，和本发明涉及到利用这种情况来分派设定点到风力涡轮机和基于所述补偿设备 校正因子与风电场的操作条件。 这种方法可能会增加风力涡轮机的存留时间，在调度维护帮助和扩大风力发电站的电气操作范围。

    VERIFICATION OF WIND TURBINE NACELLE YAW POSITION SENSOR
    78.
    发明公开
    VERIFICATION OF WIND TURBINE NACELLE YAW POSITION SENSOR 审中-公开
    风力发电机纳秒级位置传感器的验证

    公开(公告)号：EP3309389A1

    公开(公告)日：2018-04-18

    申请号：EP17194978.7

    申请日：2015-09-03

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： KJÆR, Martin Ansbjerg

    IPC: F03D7/04 ,  F03D7/02 ,  F03D80/00 ,  F03D9/00 ,  F03D17/00

    CPC classification number: F03D17/00 ,  F03D7/00 ,  F03D7/0204 ,  F03D7/048 ,  F03D9/257 ,  F05B2260/821 ,  F05B2270/321 ,  F05B2270/329 ,  F05B2270/404 ,  G01P13/02 ,  G01P21/00 ,  Y02E10/723 ,  Y02E10/725

    Abstract: The invention relates to a method of controlling a nacelle yaw system of a wind turbine within a wind farm having a plurality of wind turbines, the method comprising: determining a relative wind direction signal associated with the wind turbine, determining an absolute wind direction signal associated with the plurality of wind turbines in the wind farm, determining an estimated nacelle yaw position signal based on the absolute wind direction signal and the relative wind direction signal, and using the estimated nacelle yaw position signal to control the nacelle yaw system.

    Abstract translation: 本发明涉及一种控制具有多个风力涡轮机的风电场内的风力涡轮机的机舱偏航系统的方法，该方法包括：确定与风力涡轮机相关联的相对风向信号;确定与风力涡轮机相关的绝对风向信号 利用风场中的多个风力涡轮机，基于绝对风向信号和相对风向信号确定估计的机舱偏航位置信号，并且使用估计的机舱偏航位置信号来控制机舱偏航系统。

    POWER RAMP RATE LIMITER FOR WIND TURBINES
    79.
    发明公开
    POWER RAMP RATE LIMITER FOR WIND TURBINES 审中-公开
    用于风力发电机组的功率限制器

    公开(公告)号：EP3227553A1

    公开(公告)日：2017-10-11

    申请号：EP15804306.7

    申请日：2015-11-30

    Applicant: Vestas Wind Systems A/S

    Inventor： KJÆR, Martin Ansbjerg ,  THOMSEN, Jesper Sandberg ,  GRØN-STEVENS, Robert

    IPC: F03D7/02 ,  H02J3/38

    CPC classification number: F03D7/028 ,  F03D9/25 ,  F03D80/82 ,  F05B2240/912 ,  F05B2270/331 ,  H02J3/386 ,  H02K7/1838 ,  H02P9/105 ,  Y02E10/723 ,  Y02E10/728 ,  Y02E10/763

    Abstract: The invention relates to a method for limiting structural loads in a wind turbine in situations where the power produced by the wind turbine is increased or decreased. The limitation of structural loads is achieved by restricting the power ramp rate, i.e. the rate of change of increases or decreases in produced power. The restriction is only invoked if a maximum change of the produced power or the corresponding internal power reference within a time window exceeds a given threshold.

    Abstract translation: 本发明涉及一种用于在由风力涡轮机产生的功率增加或减少的情况下限制风力涡轮机中的结构负载的方法。 结构负载的限制是通过限制功率变化率，即产生功率增加或减少的变化率来实现的。 只有在时间窗内产生的功率或相应的内部功率参考的最大变化超过给定阈值时才会调用限制。

    A CONTROL SYSTEM FOR WIND TURBINES FOR REDUCING DISTURBANCES IN AN ELECTRICAL GRID
    80.
    发明公开
    A CONTROL SYSTEM FOR WIND TURBINES FOR REDUCING DISTURBANCES IN AN ELECTRICAL GRID 有权
    用于减少电网干扰的风力涡轮机控制系统

    公开(公告)号：EP3207246A1

    公开(公告)日：2017-08-23

    申请号：EP15781018.5

    申请日：2015-10-08

    Applicant: Vestas Wind Systems A/S

    Inventor： KJÆR, Martin Ansbjerg ,  CAPONETTI, Fabio ,  COUCHMAN, Ian ,  THOMSEN, Jesper Sandberg ,  KRÜGER, Thomas ,  GARCIA, Jorge Martinez

    IPC: F03D7/02

    CPC classification number: F03D7/0284 ,  F03D7/0296 ,  F03D7/048 ,  F05B2260/96 ,  F05B2270/334 ,  F05B2270/337 ,  Y02E10/723

    Abstract: The invention relates to a method for wind turbine generators for reducing electrical disturbances in the form of power variations which are caused by damping controllers arranged the compensate structural oscillations by inducing shaft torque variations. The shaft torque variations are generated by imposing corresponding variations in a generator set-point, e.g. a power or torque set-point. Variations in the generator set-point cause undesired variations in the power injected to the grid by one or more wind turbine generators. According to an embodiment of the invention the electrical disturbances may be reduced by limiting a damping controller's control action. The amount of limitation or restriction of the damping controller may be determined on basis on electrical disturbance information determined from power measured e.g. at a location on the grid.

    Abstract translation: 风力涡轮发电机的方法技术领域本发明涉及一种风力涡轮发电机的方法，用于减少功率变化形式的电扰动，该功率变化由阻尼控制器引起的轴扭矩变化引起的补偿结构振荡引起。 轴扭矩变化是通过在发电机设定点中施加相应的变化而产生的，例如， 功率或扭矩设定点。 发电机设定点的变化导致由一个或多个风力涡轮发电机注入电网的功率的不希望的变化。 根据本发明的实施例，通过限制阻尼控制器的控制动作可以减少电干扰。 阻尼控制器的限制或限制的量可以基于从所测量的功率确定的电气干扰信息来确定。 在网格上的某个位置。

Patent Agency Ranking