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117 条记录 (耗时 0.03 秒)

    Method for performing condition monitoring in a wind farm
    1.
    发明授权
    Method for performing condition monitoring in a wind farm 有权

    公开(公告)号：US10031048B2

    公开(公告)日：2018-07-24

    申请号：US13807426

    申请日：2011-06-27

    申请人： Khoon Peng Lim ,  Yu Zhou ,  Wanying Chen

    发明人： Khoon Peng Lim ,  Yu Zhou ,  Wanying Chen

    IPC分类号： B63H3/00 ,  G01M15/14 ,  G05B23/02 ,  F03D7/04 ,  F03D17/00

    摘要： A method for performing condition monitoring on a plurality of wind turbines of a wind farm comprises for each wind turbine, obtaining at least one vibration signal representing vibrations of one or more monitored components; generating a plurality of faulty frequency indexes on the basis of one or more of the obtained vibration signals, and in such a manner that variations in rotational speed of one or more rotating shafts of the wind turbine are filtered; comparing faulty frequency indexes originating from different wind turbines; and determining the condition of each of the monitored components based on the comparison.

    METHOD FOR PERFORMING CONDITION MONITORING IN A WIND FARM
    2.
    发明申请
    METHOD FOR PERFORMING CONDITION MONITORING IN A WIND FARM 审中-公开
    在风力发电机中进行状态监测的方法

    公开(公告)号：US20130261988A1

    公开(公告)日：2013-10-03

    申请号：US13807426

    申请日：2011-06-27

    申请人： Khoon Peng Lim ,  Yu Zhou ,  Wanying Chen

    发明人： Khoon Peng Lim ,  Yu Zhou ,  Wanying Chen

    IPC分类号： G01M15/14

    CPC分类号： G01M15/14 ,  F03D7/048 ,  F03D17/00 ,  F05B2240/96 ,  F05B2260/80 ,  F05B2270/327 ,  F05B2270/334 ,  G05B23/0237 ,  G05B23/0283 ,  G05B2219/2619 ,  Y02E10/723

    摘要： 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.

    摘要翻译： 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。

    METHOD AND SYSTEM FOR CONTROLLING OPERATION OF A WIND TURBINE
    4.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING OPERATION OF A WIND TURBINE 有权
    控制风力发电机运行的方法和系统

    公开(公告)号：US20100298995A1

    公开(公告)日：2010-11-25

    申请号：US12773441

    申请日：2010-05-04

    申请人： Tie Ling Zhang ,  Yu Zhou ,  Khoon Peng Lim ,  Bung Chai Chin ,  Pey Yen Siew ,  Jiann Yi Ho ,  Wan Ying Chen ,  Jiun Keat Ong ,  Kiran Kishan Rao Nandedkar

    发明人： Tie Ling Zhang ,  Yu Zhou ,  Khoon Peng Lim ,  Bung Chai Chin ,  Pey Yen Siew ,  Jiann Yi Ho ,  Wan Ying Chen ,  Jiun Keat Ong ,  Kiran Kishan Rao Nandedkar

    IPC分类号： G06F19/00

    CPC分类号： F03D7/042 ,  F03D7/0292 ,  F03D17/00 ,  F05B2260/821 ,  F05B2270/32 ,  F05B2270/321 ,  F05B2270/332 ,  Y02E10/723

    摘要： Methods and systems for controlling operation of a wind turbine. The method may comprise determining an alarm level for at least one component of the wind turbine. In the case that an alarm level for at least one component exceeds a predefined level, the method comprises estimating an expected remaining lifetime for the component under the current operating conditions, and controlling operation of the wind turbine in order to adjust the expected remaining lifetime for the component to a desired expected remaining lifetime for said component. Thereby, the expected remaining lifetime for the component can be prolonged until the next scheduled service event. Downtime of the wind turbine is considerably reduced, and unscheduled service events are avoided to the greatest possible extent. Mean time between inspections (MTBI) is also extended.

    摘要翻译： 控制风力发电机运行的方法和系统。 该方法可以包括确定风力涡轮机的至少一个部件的报警水平。 在至少一个组件的报警水平超过预定水平的情况下，该方法包括在当前操作条件下估计该组件的预期剩余寿命，以及控制风力涡轮机的运行，以便调整预期的剩余寿命 所述组件到所述组件的期望的预期剩余寿命。 因此，可以将组件的预期剩余寿命延长到下一个计划的服务事件。 风力涡轮机的停机时间大大减少，并且在最大程度上避免了非计划的服务事件。 检查之间的平均时间（MTBI）也延长了。

    Enhanced PUSCH in uplink carrier aggregation
    7.
    发明授权
    Enhanced PUSCH in uplink carrier aggregation 有权

    公开(公告)号：US10973025B1

    公开(公告)日：2021-04-06

    申请号：US14565408

    申请日：2014-12-09

    申请人： Yu Zhou ,  Muhammad Ahsan Naim ,  Volkan Sevindik

    发明人： Yu Zhou ,  Muhammad Ahsan Naim ,  Volkan Sevindik

    IPC分类号： H04W72/04

    摘要： Disclosed herein are systems and methods for allocating bandwidth in a wireless network comprising an aggregated uplink carrier formed from a plurality of contiguous uplink component carriers. In some embodiments, a base station allocates bandwidth for UE (User Equipment devices) transmissions within the aggregated uplink carrier during an upcoming TTI (Transmission Time Interval), wherein for the upcoming TTI, the aggregated uplink carrier has an enhanced subframe format with an enhanced PUSCH (Physical Uplink Shared Channel) region that maps to a continuous frequency range extending across one or more frequency boundaries between one or more of the plurality of uplink component carriers.

    Intermediate network bandwidth requirement determination
    10.
    发明授权
    Intermediate network bandwidth requirement determination 有权
    中间网络带宽要求确定

    公开(公告)号：US08929234B1

    公开(公告)日：2015-01-06

    申请号：US13296877

    申请日：2011-11-15

    申请人： Daniel Vivanco ,  Kyounghwan Lee ,  Yu Zhou

    发明人： Daniel Vivanco ,  Kyounghwan Lee ,  Yu Zhou

    IPC分类号： G08C15/00

    CPC分类号： H04W28/08

    摘要： In a system and method of determining bandwidth requirements of an intermediate network between a first network and a second network, determining data throughput characteristics of each of a plurality of carriers in communication with the intermediate network, determining a load balancing efficiency metric based on the determined carrier data throughput characteristics, estimating a multiplexing factor based on the load balancing efficiency metric and a total number of the plurality of carriers, and determining an actual bandwidth requirement of the intermediate network based on the multiplexing factor and a theoretical maximum bandwidth of the intermediate network.

    摘要翻译： 在确定第一网络和第二网络之间的中间网络的带宽要求的系统和方法中，确定与所述中间网络通信的多个载波中的每一个的数据吞吐量特性，基于所确定的负载平衡效率度量 载波数据吞吐量特性，基于所述负载均衡效率度量和所述多个载波的总数来估计复用因子，以及基于所述中间网络的复用因子和理论最大带宽来确定所述中间网络的实际带宽要求 。