METHOD OF OPERATING A DFIG WIND TURBINE UNDER SSR
    1.
    发明申请
    METHOD OF OPERATING A DFIG WIND TURBINE UNDER SSR 审中-公开
    在SSR下操作DFIG风力涡轮机的方法

    公开(公告)号:WO2017000946A1

    公开(公告)日:2017-01-05

    申请号:PCT/DK2016/050188

    申请日:2016-06-16

    Abstract: A method is provided of protecting a wind turbine with a doubly-fed induction generator (DFIG) against a sub-synchronous resonance (SSR) event acting on the wind turbine. A plurality of power-output values or current-output values is measured over a given period of time that corresponds to a measurement cycle. It is determined whether power-output values or current-output-values measured in the at-least-one measurement cycle are indicative of an SSR-event critical for further operation of the wind turbine. The wind turbine is shut down if the measured power-output values or current-output values are indeed indicative of an SSR- event critical for operation of the wind turbine.

    Abstract translation: 提供了一种利用双馈感应发电机(DFIG)来保护风力涡轮机以抵抗作用在风力涡轮机上的次同步共振(SSR)事件的方法。 在对应于测量周期的给定时间段内测量多个功率输出值或电流 - 输出值。 确定在至少一个测量周期中测量的功率输出值或电流 - 输出值是否表示对风力涡轮机的进一步操作至关重要的SSR事件。 如果测量的功率输出值或电流 - 输出值确实表示对于风力涡轮机的操作至关重要的SSR事件,则风力涡轮机关闭。

    A WIND TURBINE BLADE ICE ACCRETION DETECTOR
    2.
    发明申请
    A WIND TURBINE BLADE ICE ACCRETION DETECTOR 审中-公开
    风力涡轮机冰块检测器

    公开(公告)号:WO2013091649A2

    公开(公告)日:2013-06-27

    申请号:PCT/DK2012/050478

    申请日:2012-12-19

    Abstract: A wind turbine blade ice accretion detector 65 is configured to receive an indication of power generated by a wind turbine 67 and an indication of a plurality of environmental conditions of the wind turbine 69. It is also configured to receive an indication of an error relating to the operation of the wind turbine71. These indications are processed by the detector 65 to provide an indication of ice accretion of a wind turbine blade. In addition to or as an alternative, the wind turbine blade ice accretion detector 65 is configured to receive an indication of power generated by a wind turbine 67 in a plurality of different time periods and an indication of a plurality of environmental conditions of the wind turbine 69 in the plurality of different time periods; and to process these to provide an indication of ice accretion of a wind turbine blade.

    Abstract translation: 风力涡轮机叶片积冰检测器65被配置为接收由风力涡轮机67产生的功率的指示和风力涡轮机69的多个环境条件的指示。其还被配置为接收与风力涡轮机67相关的错误的指示 风力发电机的运行71。 这些指示由检测器65处理,以提供风力涡轮机叶片的积冰的指示。 除了或作为替代方案,风力涡轮机叶片积冰检测器65被配置为接收在多个不同时间段中由风力涡轮机67产生的功率的指示,以及风力涡轮机的多个环境条件的指示 69在多个不同的时间段中; 并且处理它们以提供风力涡轮机叶片的积冰的指示。

    A METHOD OF CONTROLLING A WIND TURBINE, AND A WIND TURBINE
    3.
    发明申请
    A METHOD OF CONTROLLING A WIND TURBINE, AND A WIND TURBINE 审中-公开
    一种控制风力涡轮机和风力涡轮机的方法

    公开(公告)号:WO2013091644A1

    公开(公告)日:2013-06-27

    申请号:PCT/DK2012/050473

    申请日:2012-12-18

    CPC classification number: F03D80/40 F03D7/0224 F03D7/042 Y02E10/723

    Abstract: The present invention relates to a method of controlling a wind turbine having at least one blade and a controller, including : detect location of foreign material adhered to the blade by sensors mounted on the blade and communicatively coupled to the controller; determine the resonance mode of the blade to be excited based on the location of the foreign material by the controller; and excite the blade to the resonance mode; wherein the resonance mode is one higher than the first order resonance mode. The present invention also relates to a wind turbine using the method.

    Abstract translation: 本发明涉及一种控制具有至少一个叶片和控制器的风力涡轮机的方法,包括:通过安装在叶片上并可通信地耦合到控制器的传感器检测粘附到叶片上的异物的位置; 基于控制器的异物位置确定要激励的叶片的共振模式; 并激励刀片进入共振模式; 其中所述谐振模式比所述一阶谐振模式高。 本发明还涉及使用该方法的风力涡轮机。

    A DECISION SUPPORT SYSTEM (DSS) FOR MAINTENANCE OF A PLURALITY OF RENEWABLE ENERGY GENERATORS IN A RENEWABLE POWER PLANT
    4.
    发明申请
    A DECISION SUPPORT SYSTEM (DSS) FOR MAINTENANCE OF A PLURALITY OF RENEWABLE ENERGY GENERATORS IN A RENEWABLE POWER PLANT 审中-公开
    在可再生能源发电厂维修多种可再生能源发电机的决策支持系统(DSS)

    公开(公告)号:WO2013083138A1

    公开(公告)日:2013-06-13

    申请号:PCT/DK2012/050453

    申请日:2012-12-07

    Abstract: The invention relates to a decision support system (DSS, 1) for maintenance of renewable energy generators, such as wind turbine generator (WTG, 11). A forecasting module (FM, 21) outputs renewable power plant relevant parameters (PF) in a prediction window of time (TW), whereas an optimization module (OPT, 22) receives the relevant parameters (PF),and proposes a maintenance schedule (PROP-MAN) for the renewable power plant (WPP)in order to optimize the produced energy with respect to the demand in said predefined prediction window (TW). A renewable energy generator condition module (WT-CON, 23) outputs condition data into maintenance recommendations (REC-MAN) for one or more renewable energy generators. Finally,a renewable energy generator maintenance recommendation module (WTM, 24) is arranged to combine the proposed maintenance schedule and the maintenance recommendations into a final maintenance decision proposal (FIN-PROP-MAN).The invention changes the traditional concept of reactive and predictive maintenance technique for renewable energy generators, such as wind turbine generators.

    Abstract translation: 本发明涉及用于维护诸如风力发电机(WTG,11)等可再生能源发电机的决策支持系统(DSS,1)。 预测模块(FM,21)在时间预测窗口(TW)中输出可再生能源电厂相关参数(PF),而优化模块(OPT,22)接收相关参数(PF),并提出维护计划 PROP-MAN)用于可再生能源发电厂(WPP),以便相对于所述预定义预测窗口(TW)中的需求优化所产生的能量。 可再生能源发电机状况模块(WT-CON,23)将条件数据输出到一个或多个可再生能源发电机的维护建议(REC-MAN)。 最后,安排了可再生能源发电机维修推荐模块(WTM,24),将提出的维护计划和维护建议合并到最终维护决策提案(FIN-PROP-MAN)中。本发明改变了反应和预测的传统概念 可再生能源发电机的维护技术,如风力发电机组。

    A METHOD FOR PERFORMING CONDITION MONITORING IN A WIND FARM
    5.
    发明申请
    A METHOD FOR PERFORMING CONDITION MONITORING IN A WIND FARM 审中-公开
    一种在风力发电机中进行状态监测的方法

    公开(公告)号:WO2012000506A2

    公开(公告)日:2012-01-05

    申请号:PCT/DK2011/050240

    申请日:2011-06-27

    Abstract: A method for performing condition monitoring on a plurality of wind turbines arranged in a wind farm is disclosed. The method comprises the steps of: for each wind turbine, obtaining at least one vibration signal, each vibration signal representing vibrations of one or more monitored components of the wind turbine, e.g. moving gear parts or bearings; generating a plurality of faulty frequency indexes, each faulty frequency index corresponding to a monitored component, each faulty frequency index being generated on the basis of one or more of the obtained vibration signals, and each faulty frequency index being generated in such a manner that variations in the vibration signals introduced by variations in rotational speed of one or more rotating shafts of the wind turbine are filtered out; comparing faulty frequency indexes originating from different wind turbines of the wind farm; and based on the comparing step, evaluating the condition of each of the monitored components of the plurality of wind turbines. The method allows vibration levels of components to be easily compared on wind farm level, and faulty or failing components are easily and reliably detected. Fig.

    Abstract translation: 公开了一种在布置在风电场中的多个风力涡轮机上执行状态监测的方法。 该方法包括以下步骤:对于每个风力涡轮机,获得至少一个振动信号,每个振动信号表示风力涡轮机的一个或多个受监视部件的振动,例如, 移动齿轮零件或轴承; 产生多个故障频率指标,每个故障频率指数对应于被监视的分量,每个故障频率指数是根据所获得的振动信号中的一个或多个产生的,并且每个故障频率指数以这样的方式产生: 在由风力涡轮机的一个或多个旋转轴的转速的变化引起的振动信号中被滤出; 比较源自风电场不同风力发电机组的故障频率指标; 并且基于所述比较步骤,评估所述多个风力涡轮机中的每个所监视的部件的状态。 该方法允许在风电场水平上轻松比较组件的振动水平,并且容易且可靠地检测故障或故障组件。 图。

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