APPARATUS AND METHODS FOR DETERMINING ICING RISK IN WIND TURBINES

    公开(公告)号:WO2018228652A1

    公开(公告)日:2018-12-20

    申请号:PCT/DK2018/050141

    申请日:2018-06-14

    Abstract: According to an embodiment of the present invention there is provided an apparatus for controlling a sub-system of a wind turbine. The apparatus comprises a cooling system comprising first and second heat exchangers, and a fluid circuit arranged to enable a coolant to flow between the first and second heat exchangers; and a processor. The processor is configured to: monitor one or more operational parameters of the cooling system; determine an icing risk based on the one or more operational parameters; and generate a control signal for output to the wind turbine sub-system in dependence on the determined icing risk.

    ADAPTIVE ESTIMATION OF AVAILABLE POWER FOR WIND TURBINE

    公开(公告)号:WO2018224103A1

    公开(公告)日:2018-12-13

    申请号:PCT/DK2018/050120

    申请日:2018-05-30

    Abstract: Embodiments are generally directed to techniques for operating a wind turbine of a wind power plant. An associated method comprises determining, using one or more sensors of the wind turbine, a first power production level of the wind turbine; determining, during an unconstrained operation of the wind turbine, one or more available power correction factors using the first power production level; determining, using one or more wind power parameters applied to a predefined model for estimating an available power of the wind turbine, an estimated available power value; adjusting the estimated available power value using the one or more available power correction factors to produce the available power value; and controlling, using the available power value, the wind turbine to produce a second power production level.

    WIND TURBINE SYSTEM WITH TIME DISTRIBUTED TRANSITIONS
    3.
    发明申请
    WIND TURBINE SYSTEM WITH TIME DISTRIBUTED TRANSITIONS 审中-公开
    具有时间分布式过渡的风力涡轮机系统

    公开(公告)号:WO2017108047A1

    公开(公告)日:2017-06-29

    申请号:PCT/DK2016/050427

    申请日:2016-12-12

    Abstract: There is presented a wind turbine system (1), wherein the wind turbine system is comprising a support structure (3), a plurality of wind turbine modules (2) mounted to the support structure (3) wherein each of the plurality of wind turbine modules comprises a rotor (7), and wherein the wind turbine system further comprises a control system (20), wherein the control system (20) is arranged to execute a wind turbine system transition from a first system operational state of the wind turbine system (1) to a second system operational state of the wind turbine system (1), and wherein the wind turbine system transition is performed by executing a plurality of wind turbine module transitions from a first module operational state of a wind turbine module (2) to a second module operational state of the wind turbine module (2) wherein the plurality of wind turbine module transitions are distributed in time with respect to each other.

    Abstract translation: 提供了一种风力涡轮机系统(1),其中风力涡轮机系统包括支撑结构(3),安装到支撑结构(3)的多个风力涡轮机模块(2) 其中所述多个风力涡轮机模块中的每一个包括转子(7),并且其中所述风力涡轮机系统还包括控制系统(20),其中所述控制系统(20)被布置成执行风力涡轮机系统从第一 将所述风力涡轮机系统(1)的系统运行状态转换为所述风力涡轮机系统(1)的第二系统运行状态,并且其中所述风力涡轮机系统转变通过执行多个风力涡轮机模块从第一模块运行状态 (2)的第一模块运行状态转换到所述风力涡轮机模块(2)的第二模块运行状态,其中所述多个风力涡轮机模块转换在时间上相对于彼此分布。

    WIND FARM WAKE CONTROL ACTIVATION METHOD
    4.
    发明申请

    公开(公告)号:WO2021209112A1

    公开(公告)日:2021-10-21

    申请号:PCT/DK2021/050113

    申请日:2021-04-16

    Abstract: The invention relates to a method for controlling a yaw offset of a plurality of wind turbines. The method uses a decision function which generates an activation parameter for determining if the yaw offset control of a specific wind turbine should be enabled or disabled. The decision function depends on two or more variables comprising a wind direction variable indicative of the wind direction of the specific wind turbine, and a wind variation variable defining at least a wind variation range where yaw offset control is disabled or enabled. Based on the decision function it is determined if a yaw offset should be added to the current yaw setting of the specific wind turbine.

    CONTROL OF A WIND TURBINE USING SPLIT POWER REFERENCE SIGNALS

    公开(公告)号:WO2020200378A1

    公开(公告)日:2020-10-08

    申请号:PCT/DK2020/050075

    申请日:2020-03-24

    Abstract: A method of controlling a wind turbine connected to an electrical grid is provided. The method comprises generating a turbine control reference signal and a grid control reference signal. The turbine control reference signal is provided to a machine side unit of a power or torque control system of the turbine to control the amount of energy generated by the turbine. The grid control reference signal is provided to a line side unit of the power or torque control system to control the amount of energy transferred to the electrical grid based on the grid control reference signal.

    CONTROL OF A WIND TURBINE USING REAL-TIME GAIN CALCULATION
    6.
    发明申请
    CONTROL OF A WIND TURBINE USING REAL-TIME GAIN CALCULATION 审中-公开
    用实时增益计算控制风力发电机组

    公开(公告)号:WO2017167343A1

    公开(公告)日:2017-10-05

    申请号:PCT/DK2017/050093

    申请日:2017-03-30

    Abstract: A wind turbine control system comprising at least one control module configured to output a control signal for a control mechanism of a wind turbine, and a gain calculator for calculating a gain parameter associated with the control module, wherein the gain parameter is calculated based on a computerised real-time blade model using a determined wind turbine operating point as an input. The blade model may be a blade element momentum model. In another aspect, the invention may be expressed as a method of controlling a control mechanism of a wind turbine.

    Abstract translation: 风力涡轮机控制系统包括至少一个配置成输出用于风力涡轮机的控制机构的控制信号的控制模块以及用于计算与控制模块相关联的增益参数的增益计算器,其中, 基于使用确定的风力涡轮机操作点作为输入的计算机化的实时叶片模型来计算增益参数。 叶片模型可以是叶片元件动量模型。 另一方面,本发明可以表示为控制风力涡轮机的控制机构的方法。

    MULTI-ROTOR TURBINE ARRANGED FOR COORDINATED ROTATIONAL SPEEDS
    7.
    发明申请
    MULTI-ROTOR TURBINE ARRANGED FOR COORDINATED ROTATIONAL SPEEDS 审中-公开
    多旋翼涡轮机配置为协调旋转速度

    公开(公告)号:WO2017084676A1

    公开(公告)日:2017-05-26

    申请号:PCT/DK2016/050375

    申请日:2016-11-18

    Abstract: A wind turbine system is described comprising a plurality of wind turbine modules, each including a rotor, mounted to a support structure including a tower. In use, each rotor has an associated rotating unbalance that defines an unbalance vector. The wind turbine system includes control means configured to coordinate the rotational speeds of the plurality of rotors to attenuate oscillations of the support structure caused by the rotating unbalance of the rotors. Also described is a method of controlling such a wind turbine system. The method comprises coordinating the rotational speeds of the plurality of rotors to attenuate oscillations of the support structure caused by the rotating unbalance of the rotors.

    Abstract translation: 描述了风力涡轮机系统,其包括多个风力涡轮机模块,每个风力涡轮机模块包括转子,所述风力涡轮机模块安装到包括塔架的支撑结构。 在使用中,每个转子具有定义不平衡矢量的相关旋转不平衡。 风力涡轮机系统包括控制装置,该控制装置配置成协调多个转子的旋转速度以衰减由转子的旋转不平衡引起的支撑结构的振荡。 还描述了控制这种风力涡轮机系统的方法。 该方法包括协调多个转子的旋转速度以衰减由转子的旋转不平衡引起的支撑结构的振荡。

    WIND TURBINE BLADE CONTROL FOR A DEGRADATION STATE OF THE BLADE

    公开(公告)号:WO2021254573A1

    公开(公告)日:2021-12-23

    申请号:PCT/DK2021/050182

    申请日:2021-06-10

    Abstract: A method of controlling a wind turbine blade of a wind turbine comprising: providing data comprising a plurality of pitch angles of the wind turbine blade and corresponding expected power coefficients for the wind turbine, each pitch angle corresponding to a maximum expected power coefficient for a degradation state of the wind turbine blade; obtaining a current power coefficient of the wind turbine; determining a desired pitch angle for the wind turbine blade, the desired pitch angle being equal to a pitch angle from the dataset corresponding to an expected power coefficient equal to the current power coefficient; and changing a pitch angle of the wind turbine blade to the desired pitch angle.

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