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    A METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE
    3.
    发明申请
    A METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE 审中-公开
    一种风力涡轮机的操作方法，作为其中适合的系统

    公开(公告)号：WO2013182204A1

    公开(公告)日：2013-12-12

    申请号：PCT/DK2013/050180

    申请日：2013-06-07

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： ATZLER, Martin ,  BRATH, Per ,  KRÜGER, Thomas ,  ZAIB, Ali

    IPC: F03D7/02 ,  F03D7/04

    CPC classification number: F03D7/044 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/0296 ,  F03D7/043 ,  F05B2260/966 ,  F05B2270/331 ,  Y02E10/723

    Abstract: A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least two blades, each blade having a variable pitch angle. The method comprises determining mechanical loads on the blades, determining an asymmetric load moment experienced by the turbine rotor based on the mechanical loads on the blades, determining high order harmonics from the asymmetric load moment, and determining an individual pitch control signal for each of the blades for varying the pitch angle of each blade to compensate for the asymmetric load moment. The individual pitch control signal for each blade is determined at least based on the high order harmonics.

    Abstract translation: 提供了一种操作风力涡轮机的方法。 风力涡轮机包括具有至少两个叶片的涡轮转子，每个叶片具有可变的俯仰角。 该方法包括确定叶片上的机械载荷，基于叶片上的机械负载确定涡轮转子经历的不对称载荷力矩，从非对称载荷力矩确定高次谐波，以及确定每个 用于改变每个叶片的俯仰角以补偿不对称载荷力矩的叶片。 至少基于高阶谐波确定每个叶片的各个俯仰控制信号。

    METHOD OF OPERATING A WIND TURBINE AND WIND TURBINE
    4.
    发明申请
    METHOD OF OPERATING A WIND TURBINE AND WIND TURBINE 审中-公开
    运行风力涡轮机和风力涡轮机的方法

    公开(公告)号：WO2012025121A2

    公开(公告)日：2012-03-01

    申请号：PCT/DK2011/050315

    申请日：2011-08-19

    Applicant: VESTAS WIND SYSTEMS A/S ,  BRATH, Per

    Inventor： BRATH, Per

    IPC: F03D7/02

    CPC classification number: F03D7/0264 ,  F03D7/042 ,  F03D7/045 ,  F03D17/00 ,  F05B2260/84 ,  F05B2260/845 ,  Y02E10/722 ,  Y02E10/723

    Abstract: A method of operating a wind turbine has the following steps: receiving (13) multiple sensor signals being indicative of the state of the wind turbine (19); analyzing (14) the multiple sensor signals in order to determine whether a specific alarm condition is met as predefined in one of a plurality of different predefined alarm scenarios (30); further analyzing (15) at least one of the multiple sensor signals in accordance with analyzing steps as predefined in the alarm scenario (30) for which the specific alarm condition is met in order to determine (16) whether the wind turbine (19) is to be put into either a predefined safe mode, a shutdown mode or a continued operation mode.

    Abstract translation: 一种操作风力涡轮机的方法具有以下步骤：接收（13）表示风力涡轮机（19）的状态的多个传感器信号; 分析（14）所述多个传感器信号以便确定特定的警报条件是否如在多个不同的预定义的警报情况（30）中的一个中预定义的那样被满足; 为了确定（16）风力涡轮机（19）是否满足特定报警条件，根据在报警情况（30）中预定义的分析步骤进一步分析（15）多个传感器信号中的至少一个 可以进入预定义的安全模式，关闭模式或继续操作模式。

    PITCH CONTROL OF A WIND TURBINE
    5.
    发明申请
    PITCH CONTROL OF A WIND TURBINE 审中-公开
    风力涡轮机的控制

    公开(公告)号：WO2010069323A2

    公开(公告)日：2010-06-24

    申请号：PCT/DK2009/050328

    申请日：2009-12-10

    Applicant: VESTAS WIND SYSTEMS A/S ,  BRATH, Per ,  ØSTERGAARD, Kasper, Zinck

    Inventor： BRATH, Per ,  ØSTERGAARD, Kasper, Zinck

    IPC: F03D7/02

    CPC classification number: F03D7/046 ,  F03D7/0224 ,  F03D7/0276 ,  F05B2270/109 ,  F05B2270/304 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/328 ,  F05B2270/335 ,  F05B2270/404 ,  Y02E10/723

    Abstract: A wind turbine control system suitable for minimising actuation of pitch actuators is disclosed. The control system uses an error gain schedule in full load control for reducing pitch actuation when the difference between the rotor speed and the reference rotor speed is not critical for the load of wind turbine components. The error gain schedule may be a nonlinear function which reduces the gain for low rotor speed errors. The use of the error gain schedule may reduce wear of the pitch actuators and may improve reduction of structural oscillations since focus removed from tracking the rotor speed reference when the speed error is low.

    Abstract translation: 公开了适于最小化俯仰致动器致动的风力涡轮机控制系统。 当转子速度和参考转子速度之间的差异对风力涡轮机部件的负载不是至关重要时，控制系统使用全负荷控制中的误差增益计划来减小桨距致动。 误差增益调度可以是减小低转子速度误差的增益的非线性函数。 使用误差增益调度可以减小俯仰致动器的磨损，并且可以改善结构振荡的减小，因为当速度误差低时，从跟踪转子速度基准点去除焦点。

    CONTROL METHOD FOR A WIND TURBINE
    6.
    发明申请
    CONTROL METHOD FOR A WIND TURBINE 审中-公开
    风力发电机的控制方法

    公开(公告)号：WO2015039665A1

    公开(公告)日：2015-03-26

    申请号：PCT/DK2014/050285

    申请日：2014-09-16

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： BRATH, Per ,  KJÆR, Martin Ansbjerg ,  THOMSEN, Jesper Sandberg

    IPC: F03D7/02 ,  F03D7/04

    CPC classification number: F03D7/0224 ,  F03D1/0666 ,  F03D7/043 ,  F03D7/048 ,  F03D17/00 ,  Y02E10/721 ,  Y02E10/723

    Abstract: The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the hub. The method comprises providing wake sectors assigned to different wind directions and providing a normal pitch schedule to control an output parameter of the wind turbine (e.g. power, rotational speed), comprising pitch reference values as a function of the wind speed and at least one of the parameters of thrust coefficient C t and axial induction factor a. Further, is provided a modified pitch schedule to control a modified output parameter of the wind turbine, comprising pitch reference values in dependence of the wind speed and at least one modified parameter of the thrust coefficient and/or the axial induction factor. Upon receiving indications of a wind speed and a wind direction at the wind turbine is determined a pitch reference value for the wind turbine blades according to the normal pitch schedule if the wind direction falls outside the wake sector and otherwise according to the modified pitch schedule. The wind turbine is then controlled according to the pitch reference value. The invention further relates to a method of controlling the wind turbines in a wind park, wherein each wind turbine in the park is controlled locally according to the above mentioned control method.

    Abstract translation: 本发明涉及一种控制风力涡轮机的方法，所述风力涡轮机包括附接到转子毂的风力涡轮机叶片和用于相对于所述毂倾斜叶片的控制系统。 该方法包括提供分配给不同风向的尾流扇区，并且提供正常俯仰调度以控制风力涡轮机的输出参数（例如功率，转速），包括作为风速的函数的俯仰参考值和至少一个 推力系数Ct和轴向感应系数a的参数。 此外，提供了一种修改的桨距计划，用于控制风力涡轮机的改进的输出参数，包括根据风速和推力系数和/或轴向感应系数的至少一个修改参数的俯仰参考值。 在风力涡轮机上接收到风速指示和风向的指示如果风向落在尾流扇区之外，则根据正常俯仰调度方式确定风力涡轮机叶片的俯仰基准值，否则根据修改的俯仰调度。 然后根据俯仰基准值来控制风力涡轮机。 本发明还涉及一种控制风力发电场中的风力涡轮机的方法，其中根据上述控制方法对园区中的每个风力涡轮机进行局部控制。

    METHODS AND SYSTEMS FOR WARNING A WIND TURBINE GENERATOR IN A WIND PARK OF AN EXTREME WIND EVENT
    7.
    发明申请
    METHODS AND SYSTEMS FOR WARNING A WIND TURBINE GENERATOR IN A WIND PARK OF AN EXTREME WIND EVENT 审中-公开
    用于警告风力涡轮发电机的方法和系统在风力发电场的风景公园

    公开(公告)号：WO2013083131A1

    公开(公告)日：2013-06-13

    申请号：PCT/DK2012/050443

    申请日：2012-12-04

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： KJÆR, Martin Ansbjerg ,  BRATH, Per ,  THOMSEN, Jesper Sandberg ,  DALSGAARD, Søren

    IPC: F03D7/04 ,  F03D9/00

    CPC classification number: F03D7/048 ,  F03D9/257 ,  F05B2270/321 ,  F05B2270/322 ,  Y02E10/723

    Abstract: A method is provided for warning a wind turbine generator (WTG) (100) in a wind park (200, 400, 1300) of an extreme wind event. According to one embodiment of the method, one or more WTGs are adaptively selected to operate as front line WTGs. The one or more front line WTGs detect extreme wind events and provide a warning (230) to other WTGs. The selection of front line WTGs is adaptive to changing wind conditions. In another embodiment, a wind park (200, 400, 1300) includes a group of one or more WTGs of a first type (220) located in an inner region of the wind park and a plurality of WTGs of a second type (210) located in an outer region of the wind park that at least partially surrounds the inner region. The first type of WTG (220) is structurally weaker and/or rated for higher performance than the second type of WTG (210).

    Abstract translation: 提供一种用于在极端风事件的风力发电场（200,400,1300）中警告风力涡轮发电机（WTG）（100）的方法。 根据该方法的一个实施例，自适应地选择一个或多个WTG作为前线WTG进行操作。 一个或多个前线WTG检测极端风事件并向其他WTG提供警告（230）。 前轮WTG的选择适应于变化的风况。 在另一个实施例中，风力发电场（200,400,1300）包括位于风力发电场的内部区域中的第一类型（220）的一个或多个WTG的组和多个第二类型（210）的WTG， 位于风力发电场的至少部分地围绕内部区域的外部区域中。 第一类型的WTG（220）在结构上比第二类型的WTG（210）更弱和/或被评定为更高的性能。

    METHODS AND SYSTEMS FOR WARNING A WIND TURBINE GENERATOR IN A WIND PARK OF AN EXTREME WIND EVENT
    9.
    发明授权
    METHODS AND SYSTEMS FOR WARNING A WIND TURBINE GENERATOR IN A WIND PARK OF AN EXTREME WIND EVENT 有权
    用于警告极端风事件的风场中的风力涡轮发电机的方法和系统

    公开(公告)号：EP2788620B1

    公开(公告)日：2017-10-25

    申请号：EP12798144.7

    申请日：2012-12-04

    Applicant: Vestas Wind Systems A/S

    Inventor： KJÆR, Martin Ansbjerg ,  BRATH, Per ,  THOMSEN, Jesper Sandberg ,  DALSGAARD, Søren

    IPC: F03D7/04 ,  F03D9/25

    CPC classification number: F03D7/048 ,  F03D9/257 ,  F05B2270/321 ,  F05B2270/322 ,  Y02E10/723

    Abstract: A method is provided for warning a wind turbine generator (WTG) (100) in a wind park (200, 400, 1300) of an extreme wind event. According to one embodiment of the method, one or more WTGs are adaptively selected to operate as front line WTGs. The one or more front line WTGs detect extreme wind events and provide a warning (230) to other WTGs. The selection of front line WTGs is adaptive to changing wind conditions. In another embodiment, a wind park (200, 400, 1300) includes a group of one or more WTGs of a first type (220) located in an inner region of the wind park and a plurality of WTGs of a second type (210) located in an outer region of the wind park that at least partially surrounds the inner region. The first type of WTG (220) is structurally weaker and/or rated for higher performance than the second type of WTG (210).

    CONTROL METHOD FOR A WIND TURBINE
    10.
    发明公开
    CONTROL METHOD FOR A WIND TURBINE 有权
    控制方法用于风力涡轮机

    公开(公告)号：EP3047143A1

    公开(公告)日：2016-07-27

    申请号：EP14771503.1

    申请日：2014-09-16

    Applicant: Vestas Wind Systems A/S

    Inventor： BRATH, Per ,  KJÆR, Martin Ansbjerg ,  THOMSEN, Jesper Sandberg

    IPC: F03D7/02 ,  F03D7/04

    CPC classification number: F03D7/0224 ,  F03D1/0666 ,  F03D7/043 ,  F03D7/048 ,  F03D17/00 ,  Y02E10/721 ,  Y02E10/723

    Abstract: The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the hub. The method comprises providing wake sectors assigned to different wind directions and providing a normal pitch schedule to control an output parameter of the wind turbine (e.g. power, rotational speed), comprising pitch reference values as a function of the wind speed and at least one of the parameters of thrust coefficient C, and axial induction factor a. Further, is provided a modified pitch schedule to control a modified output parameter of the wind turbine, comprising pitch reference values in dependence of the wind speed and at least one modified parameter of the thrust coefficient and/or the axial induction factor. Upon receiving indications of a wind speed and a wind direction at the wind turbine is determined a pitch reference value for the wind turbine blades according to the normal pitch schedule if the wind direction falls outside the wake sector and otherwise according to the modified pitch schedule. The wind turbine is then controlled according to the pitch reference value. The invention further relates to a method of controlling the wind turbines in a wind park, wherein each wind turbine in the park is controlled locally according to the above mentioned control method.

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