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    THYRISTOR ASSEMBLY RADIATOR FOR DC CONVERTER VALVE
    1.
    发明公开
    THYRISTOR ASSEMBLY RADIATOR FOR DC CONVERTER VALVE 审中-公开
    直流转换阀用THYRISTOR组装散热器

    公开(公告)号：EP3316293A1

    公开(公告)日：2018-05-02

    申请号：EP16829756.2

    申请日：2016-07-13

    申请人： NR Electric Co., Ltd. ,  NR Engineering Co., Ltd ,  NR Electric Power Electronics Co., Ltd.

    发明人： ZHANG, Xiang ,  FANG, Taixun ,  CAO, Dongming ,  CHEN, Chihan ,  ZHANG, Guangtai ,  LIU, Haibin

    IPC分类号： H01L23/473 ,  H01L23/367 ,  H03K17/72

    CPC分类号： H01L23/473 ,  H01C1/08 ,  H01L23/367 ,  H01L25/117 ,  H03K17/72

    摘要： A thyristor assembly radiator for a DC converter valve. A water discharging port of an N th radiator is communicated with a water discharging port of an (N-2) th radiator. A water feeding port of the N th radiator is communicated with a water feeding port of an (N+2) th radiator. Or, a water feeding port of the N th radiator is communicated with a water feeding port of the (N-2) th radiator, and a water discharging port of the N th radiator is communicated with a water discharging port of the (N+2) th radiator. A water discharging port of an M th radiator is communicated with a water discharging port of an (M-2) th radiator, and a water feeding port of the M th radiator is communicated with a water feeding port of an (M+2) th radiator, or a water feeding port of an M th radiator is communicated with a water feeding port of the (M-2) th radiator, and a water discharging port of the M th radiator is communicated with a water discharging port of an (M+2) th radiator. Water feeding ports of the last two radiators are communicated. According to the radiator, the number of joints of a cooling system is reduced, the risk of leakage is lowered, the operation reliability of a converter valve is improved, the maintenance difficulty is lowered, and the maintenance time is shortened.

    摘要翻译： 用于直流转换器阀门的晶闸管组件散热器。 第N散热器的排水口与第（N-2）散热器的排水口连通。 第N散热器的给水口与第（N + 2）散热器的给水口连通。 或者，第N个散热器的进水口与第（N-2）个散热器的进水口连通，第N个散热器的出水口与第（N + 2）个散热器的出水口连通， th散热器。 第M散热器的出水口与第（M-2）散热器的出水口连通，第M散热器的给水口与第（M + 2）散热器的给水口连通 或者第M散热器的给水口与第（M-2）散热器的给水口连通，第M散热器的出水口与（M + 2）散热器的出水口连通， th散热器。 最后两个散热器的供水口相互通信。 根据散热器，减少了冷却系统的接头数量，降低了泄漏的风险，改善了换流阀的操作可靠性，维修难度降低，维修时间缩短。

    SUB-MODULE DISTRIBUTED CONTROL METHOD, DEVICE AND SYSTEM
    2.
    发明公开
    SUB-MODULE DISTRIBUTED CONTROL METHOD, DEVICE AND SYSTEM 审中-公开
    子模块分布式控制方法，装置和系统

    公开(公告)号：EP3232555A1

    公开(公告)日：2017-10-18

    申请号：EP15866788.1

    申请日：2015-10-28

    申请人： NR Electric Co., Ltd. ,  NR Engineering Co., Ltd

    发明人： DING, Jiudong ,  TIAN, Jie ,  DONG, Yunlong ,  LI, Haiying ,  CAO, Dongming ,  LIU, Haibin ,  LU, Yu

    IPC分类号： H02M7/00

    摘要： A submodule distributed control method, device and system are provided. Submodules of each bridge arm are grouped. Each group corresponds to one valve based controller. An upper-level control device calculates a weight of each group according to a bridge arm current, an average voltage of normal submodules in each group, and the number of the normal submodules in each group; calculates, according to the number of submodules to be input in a corresponding bridge arm, the number of submodules being input in each group and delivers the number to the valve based controller. The valve based controller operates according to a voltage balancing policy and a gating method that are provided in the prior art.

    摘要翻译： 提供了一种子模块分布式控制方法，装置和系统。 每个桥臂的子模块被分组。 每个组对应一个阀门控制器。 上层控制装置根据桥臂电流，各组正常子模块的平均电压以及各组正常子模块的数量计算各组的权重; 根据要在相应的桥臂中输入的子模块的数量来计算在每个组中输入的子模块的数量，并将该数量传递给基于阀门的控制器。 基于阀的控制器根据现有技术中提供的电压平衡策略和门控方法进行操作。

    VOLTAGE-SOURCE MULTI-LEVEL CONVERTER, DIRECT-CURRENT POWER TRANSMISSION SYSTEM AND FAULT PROCESSING METHOD AND DEVICE
    6.
    发明公开
    VOLTAGE-SOURCE MULTI-LEVEL CONVERTER, DIRECT-CURRENT POWER TRANSMISSION SYSTEM AND FAULT PROCESSING METHOD AND DEVICE 审中-公开
    多电平电压源逆变器，DC输电系统和故障处理方法和装置

    公开(公告)号：EP3145071A1

    公开(公告)日：2017-03-22

    申请号：EP15788904.9

    申请日：2015-02-05

    申请人： NR Electric Co., Ltd. ,  NR Engineering Co., Ltd

    发明人： SHEN, Guorong ,  TIAN, Jie ,  CAO, Dongming ,  LI, Haiying ,  DONG, Yunlong ,  WANG, Nannan ,  LIU, Haibin ,  LU, Yu

    IPC分类号： H02M7/483 ,  H02J3/36

    CPC分类号： H02J1/00 ,  H02J3/36 ,  H02M1/32 ,  H02M7/483 ,  H02M2007/4835

    摘要： A voltage-source multi-level converter, including a phase unit (0). The phase unit (0) includes a first bridge arm (100) and a second bridge arm (200), where a first terminal of the first bridge arm (100) is a first DC terminal (P) of the phase unit (0), and a first terminal of the second bridge arm (200) is a second DC terminal (N) of the phase unit (0); a second terminal of the first bridge arm (100) and a second terminal of the second bridge arm (200) are shorted together, as an alternating-current terminal (A) of the phase unit (0); the first bridge arm (100) includes first modules (101) and one first reactor (102) connected in series, where a first terminal of the first reactor (102) is connected to the alternating-current terminal (A), a second terminal (X1) thereof is connected to a first terminal of the first modules (101), and a second terminal of the first modules (101) is connected to the first DC terminal (P); the second bridge arm (200) includes second modules (201) and one second reactor (202) connected in series, where a first terminal of the second reactor (202) is connected to the alternating-current terminal (A), a second terminal (X2) thereof is connected to a first terminal of the second modules (201), and a second terminal of the second modules (201) is connected to the second DC terminal (N); and a parallel fault shunt circuit (300) is connected between the second terminals (X1, X2) of the first reactor (102) and the second reactor (202). Also disclosed are a DC power transmission system and a fault processing method and device.

    摘要翻译： 一种电压源多电平变换器，还包括一个相位单元（0）。 相位单元（0）包括：第一桥臂（100）和第二桥臂（200），其中所述第一桥臂（100）的第一端子是相位单元的第一直流端子（P）（0） 和第二桥臂（200）的第一端子是相位单元（0）的第二直流端子（N）; 第一桥臂（100）和所述第二桥臂（200）的第二端子的第二端子被短接在一起，如在相位单元（0）的交流端子（A）; 第一桥臂（100）包括串联连接的，其中所述第一反应器（102）的第一端子被连接到交流输出端子（A）第一模块（101）和一个第一反应器（102），第二端子 （X1）被连接到所述第一模块（101）的第一端子，并且所述第一模块（101）的第二端子连接到所述第一DC端子（P）; 第二桥臂（200）包括串联连接的，其中所述第二反应器（202）的第一端子被连接到交流输出端子（A）第二模块（201）和一个第二反应器（202），第二端子 （X2）被连接到所述第二模块（201）的第一端子，和第二模块（201）的第二端子连接到所述第二DC端子（N）; 和并联故障分流电路（300）被连接在第一反应器（102）和第二反应器（202）的第二端（X1，X2）之间。 所以圆盘游离缺失是DC输电系统和故障处理方法及装置。

    ISLAND-TO-NETWORK SWITCHING METHOD
    8.
    发明公开
    ISLAND-TO-NETWORK SWITCHING METHOD 审中-公开
    岛屿到网络切换方法

    公开(公告)号：EP3211743A1

    公开(公告)日：2017-08-30

    申请号：EP15871856.9

    申请日：2015-12-09

    申请人： NR Electric Co., Ltd. ,  NR Engineering Co., Ltd

    发明人： DONG, Yunlong ,  TIAN, Jie ,  HU, Zhaoqing ,  LI, Haiying ,  CAO, Dongming ,  LIU, Haibin ,  LU, Yu

    IPC分类号： H02J3/36 ,  H02J3/38

    CPC分类号： H02J3/36 ,  H02H7/1222 ,  H02J3/38 ,  H02J2003/388 ,  H03L7/08 ,  Y02E60/60

    摘要： The present invention discloses a passive islanding to grid-connection switching method for a VSC HVDC transmission system. When the VSC HVDC transmission system in an island operation state, whether the VSC HVDC transmission system enters a grid-connection state is determined by detecting whether an overcurrent phenomenon has occurred in a converter valve-side three-phase alternating-current or a converter bridge arm current, and detecting a change status of an alternating-current side voltage. The system is controlled to switch from an island operation control mode to a grid-connection control mode. At a moment of switching, the online control mode is smoothly switched to by changing a power instruction and performing phase tracking on a current grid voltage, so that continuous operation of the system is maintained.

    摘要翻译： 本发明公开了一种用于VSC HVDC传输系统的被动孤岛 - 并网切换方法。 当处于孤岛运行状态的VSC HVDC传输系统时，VSC HVDC传输系统是否进入并网状态通过检测转换器阀侧三相交流电流或转换器电桥中是否发生过电流现象来确定 检测交流侧电压的变化状态。 控制系统从岛运行控制模式切换到并网控制模式。 在切换时，通过改变功率指令并对当前电网电压执行相位跟踪，在线控制模式被平稳切换，从而保持系统的连续操作。

    METHOD FOR INHIBITING MULTIPLE CONVERTER STATIONS INTO PASSIVE CONTROL MODE IN ISLAND STATE
    9.
    发明公开
    METHOD FOR INHIBITING MULTIPLE CONVERTER STATIONS INTO PASSIVE CONTROL MODE IN ISLAND STATE 审中-公开
    在岛状态下抑制多个变流站进入被动控制模式的方法

    公开(公告)号：EP3211741A1

    公开(公告)日：2017-08-30

    申请号：EP15868517.2

    申请日：2015-11-24

    申请人： NR Electric Co., Ltd. ,  NR Engineering Co., Ltd

    发明人： DONG, Yunlong ,  TIAN, Jie ,  CAO, Dongming ,  LI, Haiying ,  DING, Jiudong ,  HU, Zhaoqing ,  LI, Gang ,  LIU, Haibin ,  LU, Yu

    IPC分类号： H02J3/00

    CPC分类号： H02J3/46 ,  H02J1/10 ,  H02J3/00 ,  H02J3/005 ,  H02J3/36 ,  H02J3/38 ,  H02J2003/001 ,  H02J2003/388

    摘要： The present invention provides a method for inhibiting multiple inverter stations from entering a passive control mode in an island state. The method includes dividing inverter stations into groups in advance; a principle for group division is dividing inverter stations whose alternating-current sides are connected to each other through an alternating-current line in a normal running condition into a group; priorities of the inverter stations are preset in each group to tune relevant fixed values of the inverter stations for island detection; a tuning principle is that an inverter station with a higher priority has a more sensitive relevant fixed value, and an island state is more easily detected for the corresponding inverter station; an inverter station for which an island state is detected can enter a passive control mode only when all the other inverter stations with priorities higher than the priority of the inverter station in the group send enabling signals.

    摘要翻译： 本发明提供了一种用于抑制多个逆变站进入孤岛状态的被动控制模式的方法。 该方法包括预先将逆变站分成组， 分组原则是将正常运行状态下交流线路交流侧互相连接的逆变站分为一组， 每组预置逆变站的优先级，以调谐逆变站的相关固定值进行岛屿检测; 调谐原则是优先级较高的逆变站具有更敏感的相关固定值，并且对于相应的逆变站更容易检测岛状态; 只有当所有其他优先级高于组内逆变站优先级的逆变站发送使能信号时，才能检测到岛状态的逆变站才能进入被动控制模式。