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    CONTROL METHOD FOR A WIND TURBINE
    86.
    发明授权
    CONTROL METHOD FOR A WIND TURBINE 有权
    风力机的控制方法

    公开(公告)号：EP3047143B1

    公开(公告)日：2018-02-21

    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 ,  F03D1/06 ,  F03D17/00

    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.

    WIND TURBINE CONTROLLER WITH PITCH FEEDBACK CONTROL LOOP IN PARTIAL LOAD
    88.
    发明公开
    WIND TURBINE CONTROLLER WITH PITCH FEEDBACK CONTROL LOOP IN PARTIAL LOAD 审中-公开
    风力发电机组部分负荷中具有间距反馈控制回路的风力发电机组控制器

    公开(公告)号：EP3161310A1

    公开(公告)日：2017-05-03

    申请号：EP15731838.7

    申请日：2015-06-22

    Applicant: Vestas Wind Systems A/S

    Inventor： KJÆR, Martin Ansbjerg ,  THOMSEN, Jesper Sandberg

    IPC: F03D7/02

    CPC classification number: F03D7/0224 ,  F03D1/0675 ,  F03D7/028 ,  F03D7/047 ,  F03D17/00 ,  F05B2220/706 ,  F05B2270/1033 ,  F05B2270/309 ,  F05B2270/32 ,  F05B2270/335 ,  F05B2270/504 ,  F05B2270/703 ,  G05B19/402 ,  G05B2219/2619 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/725

    Abstract: The present invention relates to control of the power output of wind turbine generator that operates in derated mode to generate a produced power output level lower than an available power level. A pitch system 48 sets the blade pitch of a rotor to a pitch value based on the received power reference signal 40. A power system 43 controls the produced power output power level of the wind turbine to the requested power output level. Moreover, the blade pitch of the rotor is further controlled by a pitch feedback control loop 47 that modifies the pitch value based on a difference between the produced power output level 46 and the requested power output level 40.

    Abstract translation: 本发明涉及风力涡轮发电机的功率输出的控制，所述风力涡轮发电机以降额模式操作以产生低于可用功率水平的产生的功率输出水平。 变桨距系统48基于接收到的功率参考信号40将转子的叶片桨距设定为桨距值。动力系统43将风力涡轮机的产生的动力输出动力水平控制到所要求的动力输出水平。 此外，转子的叶片节距还由节距反馈控制环路47进一步控制，该节距反馈控制环路47基于所产生的功率输出等级46与所请求的功率输出等级40之间的差异来修改节距值。

    OPERATING METHOD FOR A WIND TURBINE
    89.
    发明公开
    OPERATING METHOD FOR A WIND TURBINE 审中-公开
    BETRIEBSVERFAHRENFÜREINE WINDTURBINE

    公开(公告)号：EP3080446A1

    公开(公告)日：2016-10-19

    申请号：EP14816123.5

    申请日：2014-12-05

    Applicant: Vestas Wind Systems A/S

    Inventor： CAPONETTI, Fabio ,  KRÜGER, Thomas ,  COUCHMAN, Ian ,  ARISTON, Ilias Konstantinos ,  BRØDSGAARD, Martin ,  GRUNNET, Jacob Deleuran ,  THOMSEN, Jesper Sandberg ,  MORTENSEN SIGFRED, Peter

    IPC: F03D7/02 ,  F03D7/04

    CPC classification number: F03D7/0296 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/0272 ,  F03D7/043 ,  F03D9/25 ,  F05B2220/706 ,  F05B2240/2211 ,  F05B2260/821 ,  F05B2260/964 ,  F05B2270/334 ,  Y02E10/723 ,  Y02E10/725

    Abstract: The present invention refers to a method for operating a wind turbine, the wind turbine particularly comprising a tower and a rotor with rotor blades. The pitch angles of the rotor blades are adjusted to generate a force on the rotor and the tower. The force is adjusted to counteract and damp an oscillation. The adjustment is enabled by an activation decision unit, if the activation decision unit decides that certain parameters characterising the oscillation or loads of the tower indicate a requirement and/or if the activation decision unit determines that the generated force is sufficient to counteract an oscillation of the tower. In various embodiments the parameters characterising the oscillation or loads of the tower comprise current oscillations and their amplitude, an estimate of loads incurred in the turbine structure, an estimate whether damping in the near future might become necessary, an indication whether a different oscillation damping algorithm than individual blade pitch control is currently performing, and an indication whether a wind speed is above a certain portion of a rated wind speed.

    Abstract translation: 本发明涉及一种用于操作风力涡轮机的方法，所述风力涡轮机特别地包括塔和具有转子叶片的转子。 调整转子叶片的桨距角以在转子和塔上产生力。 该力被调节以抵消和阻尼振荡。 如果激活决定单元确定表征塔的振荡或负载的某些参数指示要求，和/或如果激活决定单元确定所产生的力足以抵消振荡的振荡 塔。 在各种实施例中，表征塔的振荡或负载的参数包括电流振荡及其幅度，涡轮机结构中发生的负载的估计，是否可能需要在不久的将来阻尼的估计，是否使用不同的振荡阻尼算法 比单个叶片桨距控制正在执行，以及风速是否高于额定风速的某一部分的指示。

    POWER-RAMPING PITCH FEED-FORWARD
    90.
    发明公开
    POWER-RAMPING PITCH FEED-FORWARD 审中-公开
    STROMSTEIGUNGS-VORWÄRTSKOPPLUNG

    公开(公告)号：EP3074629A1

    公开(公告)日：2016-10-05

    申请号：EP14806171.6

    申请日：2014-11-27

    Applicant: Vestas Wind Systems A/S

    Inventor： KJÆR, Martin Ansbjerg ,  NØRLUND THOMSEN, Carsten ,  BOWYER, Robert ,  THOMSEN, Jesper Sandberg

    IPC: F03D7/02 ,  F03D7/04

    CPC classification number: F03D7/0224 ,  F03D1/0675 ,  F03D7/028 ,  F03D7/0296 ,  F03D7/043 ,  F03D7/047 ,  F03D9/255 ,  F05B2270/1033 ,  F05B2270/309 ,  G05B19/406 ,  G05B2219/2619 ,  Y02E10/721 ,  Y02E10/723

    Abstract: Embodiments of the present disclosure generally relate to apparatus and methods for preventing power dips associated with power ramping in wind turbines. One embodiment of the present disclosure provides a method for stabilizing power output in a wind turbine, which includes tracking a rate of change in an external reference, such as an external power reference or external torque reference, computing a feed-forward pitch angle adjustment according to the rate of change in the external power reference, and sending the feed-forward pitch angle adjustment to the wind turbine to adjust a pitch angle of rotor blades simultaneously with adjusting power output according to the external reference.

    Abstract translation: 本公开的实施例一般涉及用于防止与风力涡轮机中的功率斜坡相关联的功率下降的装置和方法。 本公开的一个实施例提供了一种用于稳定风力涡轮机中的功率输出的方法，其包括跟踪诸如外部功率参考或外部扭矩参考的外部参考的变化率，计算前馈桨距角调整 到外部功率参考的变化率，并且将前馈桨距角调整发送到风力涡轮机，以根据外部参考调节功率输出来同时调节转子叶片的桨距角。

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