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    CONTROLLED INRUSH CURRENT FOR CONVERTER-CONNECTED GRID FILTER
    2.
    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

    申请人： Vestas Wind Systems A/S

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

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

    摘要： 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
    3.
    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

    申请人： Vestas Wind Systems A/S

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

    IPC分类号： H02J3/38 ,  H02P9/00

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

    摘要： 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
    4.
    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

    申请人： Vestas Wind Systems A/S

    发明人： DONESCU, Victor ,  HELLE, Lars

    IPC分类号： H02P29/02 ,  H02J3/00

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

    摘要： 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.

    摘要翻译： 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。

    WIND-TURBINE CONVERTER CONTROL FOR MODULAR STRING CONVERTERS
    8.
    发明公开
    WIND-TURBINE CONVERTER CONTROL FOR MODULAR STRING CONVERTERS 审中-公开
    模块化转换器的风力涡轮机转换器控制

    公开(公告)号：EP3213383A1

    公开(公告)日：2017-09-06

    申请号：EP15787448.8

    申请日：2015-10-19

    申请人： Vestas Wind Systems A/S

    发明人： ABEYASEKERA, Tusitha ,  DOAN, Duy Duc ,  HELLE, Lars ,  ANDERSEN, Søren ,  NIELSEN, John Godsk

    IPC分类号： H02J3/38 ,  F03D7/02 ,  F03D7/04

    CPC分类号： H02J3/386 ,  F03D7/042 ,  F03D9/255 ,  H02M2001/0003 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763

    摘要： A wind turbine converter system with a rectifier and an inverter and a converter controller has at least first and second converter strings. The converter system is controlled by a master-converter controller and a slave-converter controller. The master-converter controller controls the first converter string and the slave-converter controller controls the second converter string. The master-converter controller receives commands from a superordinate wind turbine controller, provides the slave-converter controller with string-control commands on the basis of the superordinate control commands, and controls the conversion operation of the first converter string on the basis of the superordinate control command. The slave-converter controller receives the string-control commands from the master-converter controller and controls the conversion operation of the second converter string on the basis of the string-control commands received. The first and the second converter strings can be arranged in a bipolar configuration giving access to a neutral point. Fault detection can be performed based on current through the neutral. The system is capable of fault ride-through. Also, in case of failure of the master-converter controller, a redundant unit takes its place.

    摘要翻译： 具有整流器（4）和逆变器（5）以及转换器控制器（11）的风力涡轮机转换器系统（3）具有至少第一和第二转换器串（24,25）。 变流器系统由主变流器控制器（13）和从变流器控制器（12）控制。 主变换器控制器（13）控制第一变换器串（25），并且从变换器控制器（12）控制第二变换器串（24）。 主变流器控制器（13）接收来自上级风力涡轮机控制器（21）的命令，基于上级控制命令向从变流器控制器（12）提供串控制命令，并且控制 第一转换器串（25）基于上级控制命令。 从变换器控制器（12）接收来自主变换器控制器（13）的串控制命令，并基于接收到的串控制命令来控制第二变换器串的变换操作。 第一和第二转换器串（24,25）可以布置成能够进入中性点（62）的双极配置。 故障检测可以基于通过中性线（62）的电流进行。 该系统能够进行故障穿越。 而且，在主变换器控制器（13）发生故障的情况下，冗余单元取代它。

    A METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE
    10.
    发明公开
    A METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE 有权
    VERFAHRENFÜRDEN BETRIEB EINER WINDTURBINE SOWIE GEEIGNETES系统DAFÜR

    公开(公告)号：EP2649306A2

    公开(公告)日：2013-10-16

    申请号：EP11799348.5

    申请日：2011-12-07

    申请人： Vestas Wind Systems A/S

    发明人： GUPTA, Amit Kumar ,  TRIPATHI, Anshuman ,  STYHM, Ove ,  HELLE, Lars ,  KARUPPANAN, Yugarajan ,  OPINA, Gil Jr Lampong

    IPC分类号： F03D1/00 ,  H02M5/458 ,  H02M7/06 ,  H02M1/32

    CPC分类号： F03D7/0264 ,  F03D9/255 ,  H02J3/386 ,  Y02E10/72 ,  Y02E10/763

    摘要： A method of operating a wind turbine is disclosed, the wind turbine comprising a power generator, a machine-side converter connected to the power generator, a line-side converter connected to a power grid through associated power components, and a DC-link connected between the machine-side converter and the line-side converter. The method includes monitoring the power grid for overvoltage events, and upon detecting an overvoltage event: (1) disabling active operation of the machine-side converter and the line-side converter, (2) enabling an AC load dump connected between the machine side converter and the power generator in order to dissipate power output from the power generator, (3) waiting for a waiting period, and (4) enabling active operation of the line-side converter and the machine converter when the overvoltage event ends within the waiting period.

    摘要翻译： 公开了一种操作风力涡轮机的方法，所述风力涡轮机包括发电机，连接到发电机的机器侧转换器，通过相关联的功率部件连接到电网的线路侧转换器，以及连接到 在机侧转换器和线路侧转换器之间。 该方法包括监控过电压事件的电网，检测到过电压事件时：（1）禁用机侧转换器和线路侧转换器的主动运行，（2）启用连接在机侧的交流负载转储 转换器和发电机，以消耗发电机的功率输出，（3）等待等待时间;（4）当过电压事件在等待期间结束时，使线路侧转换器和机器转换器有效运行 期。