Method of dynamically adjusting a rate of change of a rotor speed set point during wind turbine shutdown

    公开(公告)号:US10927812B2

    公开(公告)日:2021-02-23

    申请号:US16278987

    申请日:2019-02-19

    Abstract: A method for operating a wind turbine includes operating, via a controller, the wind turbine according to a speed set point during normal operation of the wind turbine. The method also includes receiving, via the controller, a command to shut down the wind turbine or to curtail operation of the wind turbine. In response to receiving the command, the method includes initiating, via the controller, a shutdown procedure or a curtailment procedure of the wind turbine. During the shutdown procedure or the curtailment procedure of the wind turbine, the method includes dynamically adjusting a rate of change of the speed set point as a function of a speed tracking error, which corresponds to a difference between an actual rotor speed of the wind turbine and the speed set point.

    Control methods for producing precision coils
    12.
    发明授权
    Control methods for producing precision coils 有权
    制造精密线圈的控制方法

    公开(公告)号:US09463948B2

    公开(公告)日:2016-10-11

    申请号:US14031052

    申请日:2013-09-19

    CPC classification number: B65H54/2854 H01F41/064

    Abstract: A method for sensing a position of a lead wire during winding of a wire on a coil form to form a precision coil is provided. The method includes acquiring data representative of at least a portion of the precision coil, identifying portions of the acquired data that represent the wire in the precision coil, and determining a position of the lead wire on the coil form from the identified portions of the acquired data.

    Abstract translation: 提供一种用于在线圈缠绕在线圈形状上以形成精密线圈时检测引线位置的方法。 该方法包括获取表示精密线圈的至少一部分的数据,识别表示精密线圈中的线的所获取数据的部分,以及从所获取的所识别的部分中确定线圈形式上的引线的位置 数据。

    Methods for controlling wind turbine loading
    13.
    发明授权
    Methods for controlling wind turbine loading 有权
    风力涡轮机负载控制方法

    公开(公告)号:US09341159B2

    公开(公告)日:2016-05-17

    申请号:US13857205

    申请日:2013-04-05

    Abstract: Methods are provided for controlling wind turbine loading. In one embodiment, a method includes the steps of determining a current thrust value for the wind turbine, calculating a thrust differential based on the current thrust value and a predetermined maximum thrust value, calculating a desired pitch offset value based on the thrust differential and a thrust sensitivity value, and adjusting a pitch of the wind turbine utilizing the pitch offset value.

    Abstract translation: 提供了控制风力涡轮机负载的方法。 在一个实施例中,一种方法包括以下步骤:确定风力涡轮机的当前推力值,基于当前推力值和预定的最大推力值计算推力差,基于推力差计算所需的俯仰偏移值,以及 推力灵敏度值,并利用俯仰偏移值调整风力涡轮机的俯仰。

    METHODS AND SYSTEMS FOR DETECTING WIND TURBINE ROTOR BLADE DAMAGE
    14.
    发明申请
    METHODS AND SYSTEMS FOR DETECTING WIND TURBINE ROTOR BLADE DAMAGE 审中-公开
    用于检测风力涡轮机转子叶片损伤的方法和系统

    公开(公告)号:US20150050143A1

    公开(公告)日:2015-02-19

    申请号:US13970181

    申请日:2013-08-19

    CPC classification number: F03D17/00 F05B2260/80

    Abstract: Methods and systems for detecting rotor blade damage in a wind turbine are provided herein. A monitoring system includes a filter module and a damage determination module. The filter module is configured to determine an amplitude of a 1P frequency component of at least one operating condition of the wind turbine. The damage determination module is configured to compare the determined 1P frequency component amplitude to a threshold 1P frequency component amplitude.

    Abstract translation: 本文提供了用于检测风力涡轮机中的转子叶片损伤的方法和系统。 监控系统包括过滤器模块和损坏确定模块。 过滤器模块被配置为确定风力涡轮机的至少一个操作条件的1P频率分量的振幅。 损伤确定模块被配置为将确定的1P频率分量振幅与阈值1P频率分量振幅进行比较。

    MAGNETIC BEARING SYSTEMS AND METHODS OF CONTROLLING THE SAME
    15.
    发明申请
    MAGNETIC BEARING SYSTEMS AND METHODS OF CONTROLLING THE SAME 审中-公开
    磁性轴承系统及其控制方法

    公开(公告)号:US20140145534A1

    公开(公告)日:2014-05-29

    申请号:US13689249

    申请日:2012-11-29

    CPC classification number: H02K7/09 F16C32/0442 F16C32/0451

    Abstract: A magnetic bearing system includes a first electromagnet, a second electromagnet opposing the first electromagnet, and a rotor positioned between the first and second electromagnets. The first and second electromagnets are configured to apply a magnetic force. The system also includes a controller configured to determine a control action necessary to move the rotor to a predetermined rotor setpoint. The system further includes a nonlinear compensation device configured to calculate a first electrical current setpoint for the first electromagnet and a second electrical current setpoint for the second electromagnet to maintain a predetermined stiffness during at least one of startup, operation, and shutdown of the magnetic bearing system. The first and second electrical current setpoints are calculated based on the control action determined by the controller.

    Abstract translation: 磁性轴承系统包括第一电磁体,与第一电磁体相对的第二电磁体和位于第一和第二电磁体之间的转子。 第一和第二电磁体构造成施加磁力。 该系统还包括控制器,其被配置为确定将转子移动到预定的转子设定点所需的控制动作。 该系统还包括非线性补偿装置,该非线性补偿装置被配置为计算用于第一电磁体的第一电流设定值和用于第二电磁体的第二电流设定值,用于在至少一个启动,运行和关闭磁轴承期间保持预定的刚度 系统。 基于由控制器确定的控制动作来计算第一和第二电流设定点。

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