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    METHOD AND APPARATUS FOR DYNAMIC LOAD SHARING
    31.
    发明申请
    METHOD AND APPARATUS FOR DYNAMIC LOAD SHARING 审中-公开
    用于动态负载共享的方法和设备

    公开(公告)号：WO2010034821A2

    公开(公告)日：2010-04-01

    申请号：PCT/EP2009/062465

    申请日：2009-09-25

    Applicant: VESTAS WIND SYSTEMS A/S ,  HELLE, Lars ,  LARSEN, Kim B. ,  TRIPATHI, Anshuman ,  CAO, Shu Yu

    Inventor： HELLE, Lars ,  LARSEN, Kim B. ,  TRIPATHI, Anshuman ,  CAO, Shu Yu

    IPC: H02P25/22 ,  H02P9/10 ,  H02P21/00

    CPC classification number: H02P25/22 ,  H02P9/102 ,  H02P9/105 ,  H02P25/20 ,  H02P2101/15 ,  Y10T307/273 ,  Y10T307/406

    Abstract: A method for providing dynamic load sharing between a first and a second three phase system is disclosed, wherein the first and second three phase system are connected to a first and second three phase interleaved winding in a generator. The method comprises determining a first q-axis control signal for the first three phase system and a second q-axis control signal for the second three phase system based on a torque and/or power demand for the generator, determining a first d-axis control signal for the first three phase system and a second d-axis control signal for the second three phase system based on a coupling effect between the first and second three phase systems, and adjusting the q-axis control signals and d-axis control signals by including at least one feed forward compensation signal, wherein said at least one feed forward compensation signal is based on a coupling effect between the first and second three phase systems.

    Abstract translation: 公开了一种用于在第一和第二三相系统之间提供动态负载分配的方法，其中第一和第二三相系统连接到发电机中的第一和第二三相交错绕组。 该方法包括基于发电机的转矩和/或功率需求确定用于第一三相系统的第一q轴控制信号和用于第二三相系统的第二q轴控制信号，确定第一d轴 基于第一和第二三相系统之间的耦合效应以及调节q轴控制信号和d轴控制信号来控制第一三相系统的控制信号和第二三相系统的第二d轴控制信号 通过包括至少一个前馈补偿信号，其中所述至少一个前馈补偿信号基于第一和第二三相系统之间的耦合效应。

    APPARATUS AND METHOD FOR CONTROLLING REACTIVE POWER FROM CLUSTERS OF WIND TURBINES CONNECTED TO A UTILITY GRID
    33.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING REACTIVE POWER FROM CLUSTERS OF WIND TURBINES CONNECTED TO A UTILITY GRID 审中-公开
    用于控制连接到实际网格的风力涡轮机组的反作用力的装置和方法

    公开(公告)号：WO2009083446A2

    公开(公告)日：2009-07-09

    申请号：PCT/EP2008/067695

    申请日：2008-12-17

    Applicant: VESTAS WIND SYSTEMS A/S ,  JØRGENSEN, Allan Holm ,  HELLE, Lars ,  SCHAIER, Leonard

    Inventor： JØRGENSEN, Allan Holm ,  HELLE, Lars ,  SCHAIER, Leonard

    CPC classification number: F03D7/048 ,  F03D7/0284 ,  H02J3/1885 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/32

    Abstract: The present invention relates to a method for operating a wind farm comprising a plurality of wind turbine generators having substantially the same real output power ratings supplying power to a grid. The method comprises the steps of selecting at least one turbine in a first group of wind turbines to support reactive power needs of the farm or grid by supplying or absorbing reactive power when needed; selecting at least one turbine in a second group of wind turbines to support reactive power needs of the farm or grid by absorbing reactive power when needed; and commanding at least one wind turbine in the first or second group to support reactive power needs of the farm or grid.

    Abstract translation: 本发明涉及一种用于操作风力发电场的方法，该风力发电场包括多个风力发电机，其具有与电网相同的实际输出额定功率。 该方法包括以下步骤：在第一组风力涡轮机中选择至少一个涡轮机以通过在需要时供应或吸收无功功率来支持农场或电网的无功功率需求; 在第二组风力涡轮机中选择至少一个涡轮机以通过在需要时吸收无功功率来支持农场或电网的无功功率需求; 并指挥第一组或第二组中的至少一个风力涡轮机，以支持农场或电网的无功功率需求。

    A VARIABLE ROTOR SPEED WIND TURBINE, WIND PARK, METHOD OF TRANSMITTING ELECTRIC POWER AND METHOD OF SERVICING OR INSPECTING A VARIABLE ROTOR SPEED WIND TURBINE
    36.
    发明申请
    A VARIABLE ROTOR SPEED WIND TURBINE, WIND PARK, METHOD OF TRANSMITTING ELECTRIC POWER AND METHOD OF SERVICING OR INSPECTING A VARIABLE ROTOR SPEED WIND TURBINE 审中-公开
    可变转子速度风力涡轮机，风力发电机，发电方法和维修或检查可变转子转速风力涡轮机的方法

    公开(公告)号：WO2007003183A1

    公开(公告)日：2007-01-11

    申请号：PCT/DK2005/000455

    申请日：2005-07-01

    Applicant: VESTAS WIND SYSTEMS A/S ,  KJÆR, Philip, Richard, Jacobsen, Carne ,  HELLE, Lars

    Inventor： KJÆR, Philip, Richard, Jacobsen, Carne ,  HELLE, Lars

    IPC: H02M5/458

    CPC classification number: H02M7/493 ,  F03D9/255 ,  F03D13/20 ,  H02J3/38 ,  H02J3/386 ,  H02M5/458 ,  H02M2001/325 ,  Y02E10/72 ,  Y02E10/763 ,  Y10T307/707

    Abstract: The invention relates to a variable rotor speed wind turbine (1) transmitting AC electric power to a utility grid (13). The wind turbine comprises at least one AC generator (7) and at least one power electronic converter unit (10). Further, it comprises means (10, 15, 20) for transforming at least one nominal output value of said generator to at least one different nominal input value of said at least one power electronic converter unit. The invention also relates to a wind park and a method of transmitting AC electric power to a utility grid (13) from a variable rotor speed wind turbine (1) as well as a method of servicing or inspecting a variable rotor speed wind turbine.

    Abstract translation: 本发明涉及向公用电网（13）传输交流电力的可变转子转速风力涡轮机（1）。 风力涡轮机包括至少一个AC发电机（7）和至少一个电力电子转换器单元（10）。 此外，它包括用于将所述发电机的至少一个标称输出值变换为所述至少一个功率电子转换器单元的至少一个不同标称输入值的装置（10,15,20）。 本发明还涉及一种将风力发电场和从可变转子风力涡轮机（1）向公用电网（13）传递的电力的方法以及对可变转子风力涡轮机进行维修或检查的方法。

    CONTROLLED INRUSH CURRENT FOR CONVERTER-CONNECTED GRID FILTER
    38.
    发明公开
    CONTROLLED INRUSH CURRENT FOR CONVERTER-CONNECTED GRID FILTER 审中-公开
    控制转换器连接网格滤波器的浪涌电流

    公开(公告)号：EP3314715A1

    公开(公告)日：2018-05-02

    申请号：EP16728612.9

    申请日：2016-06-08

    Applicant: Vestas Wind Systems A/S

    Inventor： ABEYASEKERA, Tusitha ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt ,  HELLE, Lars ,  PEDERSEN, Tune ,  NIELSEN, John Godsk ,  ANDERSEN, Søren

    IPC: H02J3/38 ,  F03D9/00 ,  H02J3/42 ,  H02H9/00

    Abstract: A method, converter arrangement, and controller are disclosed for connecting an output of a converter with an electrical grid to control inrush currents into a grid filter assembly connected with the output of the converter, the electrical grid carrying an alternating current (AC) signal having one or more phases. The method includes determining a voltage of the AC signal and operating, after pre-charging a direct current (DC) link of the converter to a predetermined voltage, the converter using open-loop voltage control to produce an AC output signal that substantially matches the AC signal of the electrical grid. The open-loop voltage control is based on the determined voltage of the AC signal. The method further includes closing, after a predetermined amount of time of operating the converter using the open-loop voltage control, a switching device to thereby connect the output of the converter with the electrical grid.

    A METHOD OF CONTROLLING A WIND TURBINE GENERATOR AND APPARATUS FOR CONTROLLING ELECTRIC POWER GENERATED BY A WIND TURBINE GENERATOR
    39.
    发明授权
    A METHOD OF CONTROLLING A WIND TURBINE GENERATOR AND APPARATUS FOR CONTROLLING ELECTRIC POWER GENERATED BY A WIND TURBINE GENERATOR 有权
    一种控制风力发电机产生的电力的风力发电机及其控制装置的方法

    公开(公告)号：EP2478609B1

    公开(公告)日：2018-04-11

    申请号：EP10766364.3

    申请日：2010-09-14

    Applicant: Vestas Wind Systems A/S

    Inventor： CAO, Shu Yu ,  TRIPATHI, Anshuman ,  LARSEN, Kim B. ,  ANDERSEN, Gert Karmisholt ,  HELLE, Lars

    IPC: H02J3/38 ,  H02P9/00

    CPC classification number: F03D7/0272 ,  H02J3/386 ,  H02P9/48 ,  H02P21/141 ,  H02P2101/15 ,  Y02E10/763

    Abstract: A method of controlling a wind turbine generator is provided, the wind turbine generator converting mechanical energy to electrical. The method comprises: determining an electromagnetic power reference representing the electromagnetic power generated by the wind turbine generator, wherein the electromagnetic power reference is determined based on a desired output of the wind turbine generator; controlling the electrical power generated by the wind turbine generator using a control signal, wherein the control signal is derived from the electromagnetic power reference and is modified in dependence on an inverse power function of the wind turbine generator by incorporating minimal copper loss constraint and stator voltage limiting constraint such that non-linearity of the wind turbine generator plant is compensated in the control loop and it operates at its maximum efficiency. One effect of the method is that classical linear control loop design can be employed in spite of the plant being a non-linear identity.

    METHODS AND SYSTEMS FOR REDUCING THE IMPACT OF A GENERATOR SHORT CIRCUIT IN A WIND TURBINE
    40.
    发明公开
    METHODS AND SYSTEMS FOR REDUCING THE IMPACT OF A GENERATOR SHORT CIRCUIT IN A WIND TURBINE 审中-公开
    VERFAHREN UND SYSTEME ZUR REDUZIERUNG DER AUSWIRKUNG EINES GENERATURURSCHLUSSES IN EINER WINDTURBINE

    公开(公告)号：EP2923441A2

    公开(公告)日：2015-09-30

    申请号：EP13798238.5

    申请日：2013-11-13

    Applicant: Vestas Wind Systems A/S

    Inventor： DONESCU, Victor ,  HELLE, Lars

    IPC: H02P29/02 ,  H02J3/00

    CPC classification number: H02H9/045 ,  F03D7/0272 ,  F03D9/25 ,  F03D17/00 ,  F03D80/80 ,  F05B2270/328 ,  F05B2270/80 ,  H02H9/02 ,  H02H9/041 ,  H02P29/0241 ,  Y02E10/723 ,  Y02E10/725

    Abstract: A method is provided for reducing an impact of an unbalanced short circuit event that occurs in a polyphase permanent magnet generator of a wind turbine. According to the method, an unbalanced short circuit event is detected in the generator of the wind turbine, and, in response to detecting the unbalanced short circuit event, at least one phase of the generator is shorted at a switch-point between the generator and a converter of the wind turbine to create a balanced short circuit in the generator. By doing so, the torque response of the generator is altered to avoid high amplitude torque oscillations that would otherwise occur as a result of the unbalanced short circuit event.

    Abstract translation: 提供了一种用于减少在风力涡轮机的多相永久磁铁发生器中发生的不平衡短路事件的影响的方法。 根据该方法，在风力发电机的发电机中检测到不平衡短路事件，并且响应于检测到不平衡短路事件，发电机的至少一个相位在发电机和发电机之间的切换点处短路 风力涡轮机的转换器，以在发电机中产生平衡的短路。 通过这样做，发电机的转矩响应被改变以避免否则由于不平衡短路事件而发生的高幅度扭矩振荡。

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