Damping wind turbine tower oscillations using gyroscopic forces
    2.
    发明授权
    Damping wind turbine tower oscillations using gyroscopic forces 有权
    使用陀螺力的阻尼风机塔架振荡

    公开(公告)号:US09347431B2

    公开(公告)日:2016-05-24

    申请号:US14214792

    申请日:2014-03-15

    IPC分类号: F02D9/00 F03D7/02 F03D9/00

    摘要: A method and a control device for damping an oscillatory movement of the top of a tower of a wind turbine are provided. The described method includes (a) rotating a rotor being rotatably attached to a nacelle of the wind turbine with a rotational speed, and (b) yawing the nacelle of the wind turbine around an axis being aligned with the longitudinal axis of the tower with a yawing speed. Thereby, a yawing movement being associated with yawing the nacelle is coordinated with the oscillatory movement in such a manner that a gyroscopic torque resulting (i) from rotating the rotor and (ii) from yawing the rotor damps the oscillatory movement of the top of the tower. A wind turbine comprising such a control device and a computer program for controlling this method are also provided.

    摘要翻译: 提供了一种用于阻尼风力涡轮机塔顶部振荡运动的方法和控制装置。 所描述的方法包括:(a)以可旋转的方式旋转连接到风力涡轮机的机舱上的转子,并且(b)使风力涡轮机的机舱围绕与塔的纵向轴线对准的轴线 偏航速度 因此,与摆动机舱相关联的偏航运动与振荡运动协调,使得陀螺转矩导致(i)旋转转子和(ii)偏转转子来减小振荡运动的振荡运动 塔。 还提供了包括这种控制装置的风力涡轮机和用于控制该方法的计算机程序。

    Method and system for controlling a generator
    3.
    发明授权
    Method and system for controlling a generator 有权
    用于控制发电机的方法和系统

    公开(公告)号:US08854017B2

    公开(公告)日:2014-10-07

    申请号:US13900616

    申请日:2013-05-23

    IPC分类号: H02P9/14

    摘要: A method for controlling a generator having a rotor with a plurality of magnets and a first stator winding and a second stator winding, electrically separate from the first stator winding is provided. The rotor rotates around a rotation axis perpendicular to a radial direction relative to the stator windings. The method includes allowing flow of a first electric current through the first stator winding, thereby generating a first radial force having a first magnitude and acting between the first stator winding and the rotor, and allowing flow of a second electric current through the second stator winding, thereby generating a second radial force having a second magnitude and acting between the second stator winding and the rotor, wherein the first magnitude is different from the second magnitude resulting in a net generator generated radial force generated by the first stator winding and the second stator winding at the rotor.

    摘要翻译: 提供一种用于控制具有多个磁体的转子和与第一定子绕组电分离的第一定子绕组和第二定子绕组的发电机的方法。 转子围绕与定子绕组的径向垂直的旋转轴旋转。 该方法包括允许第一电流流过第一定子绕组,从而产生具有第一量值并在第一定子绕组和转子之间作用的第一径向力,并允许第二电流流过第二定子绕组 从而产生具有第二量值并且在第二定子绕组和转子之间作用的第二径向力,其中第一幅值不同于第二幅度,导致净发生器产生由第一定子绕组和第二定子产生的径向力 在转子上缠绕。

    METHOD OF CONTROLLING PITCH SYSTEMS OF A WIND TURBINE
    4.
    发明申请
    METHOD OF CONTROLLING PITCH SYSTEMS OF A WIND TURBINE 审中-公开
    控制风力发电机倾斜系统的方法

    公开(公告)号:US20140017081A1

    公开(公告)日:2014-01-16

    申请号:US14007422

    申请日:2011-08-17

    IPC分类号: F03D7/02

    摘要: A method is provided for controlling the pitch systems of a plurality of pitch systems of a wind turbine. The method includes generating a main pitch control signal for the pitch systems on the basis of a performance parameter of the wind turbine and generating a distinct auxiliary pitch control signal for each individual pitch system of the plurality of pitch systems. The method further includes adding an auxiliary pitch control signal to the main pitch control signal to give a combined pitch control signal for a pitch system. The method then includes controlling that pitch system in response to that combined pitch control signal wherein an auxiliary pitch control signal is suppressed when a pitch activity value and/or a pitch variation value is below a predefined threshold.

    摘要翻译: 提供了一种用于控制风力涡轮机的多个桨距系统的俯仰系统的方法。 该方法包括基于风力涡轮机的性能参数产生用于俯仰系统的主桨距控制信号,并为多个桨距系统中的每个单独俯仰系统产生不同的辅助俯仰控制信号。 该方法还包括向主音调控制信号添加辅助音调控制信号,以给出用于音调系统的组合音调控制信号。 该方法然后包括响应于该组合的音调控制信号来控制该音调系统,其中当音调活动值和/或音调变化值低于预定阈值时,辅助音调控制信号被抑制。

    METHOD AND ARRANGEMENT FOR OPERATING A WIND TURBINE TAKING INTO ACCOUNT POWER LOSSES
    6.
    发明申请
    METHOD AND ARRANGEMENT FOR OPERATING A WIND TURBINE TAKING INTO ACCOUNT POWER LOSSES 审中-公开
    用于操作风力涡轮机进入帐户电力损失的方法和装置

    公开(公告)号:US20130241209A1

    公开(公告)日:2013-09-19

    申请号:US13795864

    申请日:2013-03-12

    IPC分类号: F03D7/02

    摘要: A method for operating a wind turbine is proposed. The wind turbine has a rotor, a wind turbine converter and a wind turbine output terminal connected to a utility grid. The converter has a converter output terminal upstream of the wind turbine output terminal. An input signal related to an action output of the wind turbine is obtained at a location between the rotor and the wind turbine output terminal. A power difference is estimated between the power associated with the action output at the location and the output power at the converter output terminal. The converter is controlled based on the input signal and the estimated power difference.

    摘要翻译: 提出了一种运行风力发电机的方法。 风力涡轮机具有连接到公用电网的转子,风力涡轮机转换器和风力涡轮机输出端子。 该转换器具有在风力涡轮机输出端上游的转换器输出端。 在转子和风力涡轮机输出端子之间的位置处获得与风力涡轮机的动作输出相关的输入信号。 在与位置处的动作输出相关联的功率与转换器输出端子的输出功率之间估计功率差。 转换器根据输入信号和估计功率差进行控制。

    Method and computing module for determining pitch angle adjustment signals of a wind turbine based on the maximum rotational speed
    8.
    发明申请
    Method and computing module for determining pitch angle adjustment signals of a wind turbine based on the maximum rotational speed 有权
    用于基于最大转速确定风力涡轮机的俯仰角调节信号的方法和计算模块

    公开(公告)号:US20120282091A1

    公开(公告)日:2012-11-08

    申请号:US13449546

    申请日:2012-04-18

    IPC分类号: F03D7/04 F03D11/00

    摘要: A method and corresponding arrangement are provided for determining pitch angle adjustment signals for adjusting a pitch angle of a rotor blade connected to a rotation shaft of a wind turbine. The method includes obtaining a first maximal speed signal indicative of a first desired maximal rotational speed of the rotation shaft. The method also includes deriving a first pitch angle adjustment signal based on the first maximal speed signal. The method further includes obtaining a second maximal speed signal indicative of a second desired maximal rotational speed of the rotation shaft different from the first desired maximal rotational speed of the rotation shaft. Further, the method includes deriving a second pitch angle adjustment signal based on the second maximal speed signal. The second pitch angle adjustment signal is different from the first pitch angle adjustment signal.

    摘要翻译: 提供了一种方法和相应的布置,用于确定用于调节连接到风力涡轮机的旋转轴的转子叶片的俯仰角的俯仰角调节信号。 该方法包括获得指示旋转轴的第一期望最大转速的第一最大速度信号。 该方法还包括基于第一最大速度信号导出第一俯仰角调整信号。 该方法还包括获得表示与旋转轴的第一期望最大转速不同的旋转轴的第二期望最大转速的第二最大速度信号。 此外,该方法包括基于第二最大速度信号导出第二俯仰角调整信号。 第二俯仰角调整信号与第一俯仰角调整信号不同。

    Methods and systems for determining a pitch angle offset signal and for controlling a rotor frequency of a rotor of a wind turbine for speed avoidance control
    9.
    发明申请
    Methods and systems for determining a pitch angle offset signal and for controlling a rotor frequency of a rotor of a wind turbine for speed avoidance control 有权
    用于确定俯仰角偏移信号并用于控制用于速度避免控制的风力涡轮机的转子的转子频率的方法和系统

    公开(公告)号:US20120189443A1

    公开(公告)日:2012-07-26

    申请号:US13353584

    申请日:2012-01-19

    IPC分类号: F03D7/00

    摘要: A method for determining and applying a pitch angle offset signal for controlling a rotor frequency of a rotor of a wind turbine is disclosed. The method includes obtaining a motion quantity indicative of a motion of the rotor and determining the pitch angle offset signal based on the motion quantity such that the pitch angle offset signal is adapted to be used for adjusting a blade pitch angle of a rotor blade mounted at the rotor for controlling the rotor frequency in order to reduce a time span during which the rotor is in a critical motion region. A corresponding system and a method for controlling a rotor frequency are also disclosed.

    摘要翻译: 公开了一种用于确定和应用用于控制风力涡轮机的转子的转子频率的俯仰角偏移信号的方法。 该方法包括获得表示转子的运动的运动量,并且基于运动量确定俯仰角偏移信号,使得俯仰角偏移信号适于用于调节安装在转子叶片的转子叶片的叶片俯仰角 用于控制转子频率的转子,以便减少转子处于临界运动区域的时间跨度。 还公开了一种用于控制转子频率的相应系统和方法。

    DAMPING AN OSCILLATORY MOVEMENT OF A NACELLE OF A WIND TURBINE
    10.
    发明申请
    DAMPING AN OSCILLATORY MOVEMENT OF A NACELLE OF A WIND TURBINE 审中-公开
    阻止风力涡轮机的振荡运动

    公开(公告)号:US20150076822A1

    公开(公告)日:2015-03-19

    申请号:US14026075

    申请日:2013-09-13

    IPC分类号: F03D7/02

    摘要: A method is provided for damping an oscillatory movement of a nacelle of a wind turbine. The nacelle is attached to a tower of the wind turbine. The method involves rotating the nacelle about a yawing axis with a yawing speed, the yawing axis being aligned with a longitudinal axis of the tower, changing the yawing speed, and coordinating the yawing speed with the oscillatory movement such that a torque resulting from the change of the yawing speed damps the oscillatory movement of the nacelle of the tower.

    摘要翻译: 提供了一种用于阻尼风力涡轮机的机舱的振荡运动的方法。 机舱连接到风力涡轮机的塔架上。 该方法包括以偏航速度围绕偏转轴线旋转机舱,偏航轴线与塔架的纵向轴线对准,改变偏航速度,以及使偏航速度与振荡运动协调使得由变化产生的转矩 的偏航速度阻止塔的机舱的振荡运动。