AN HVDC SWITCHYARD AND AN HVDC SWITCHYARD SYSTEM
    1.
    发明申请
    AN HVDC SWITCHYARD AND AN HVDC SWITCHYARD SYSTEM 审中-公开
    高压直流开关和高压直流开关系统

    公开(公告)号:WO2012001123A1

    公开(公告)日:2012-01-05

    申请号:PCT/EP2011/061044

    申请日:2011-06-30

    Abstract: The present invention relates to an HVDC switchyard arranged to interconnect a first part of a DC grid with a second part of the DC grid. By means of the invention, a first part of the DC grid is connected to the busbars of the HVDC switchyard via a fast DC breaker, while further part(s) of the DC grid are connected to the busbars of the HVDC switchyard by means of switchyard DC breakers of lower breaking speed. By use of the inventive HVDC switchyard arrangement, the cost for the HVDC switchyard can be considerably reduced, while adequate protection can be provided. In one embodiment, the fast DC breaker is an HVDC station DC breaker forming part of an HVDC station. In another embodiment, the fast DC breaker is a switchyard DC breaker.

    Abstract translation: 本发明涉及一种将DC网格的第一部分与DC网格的第二部分相互连接的HVDC开关场所。 通过本发明,DC电网的第一部分经由快速DC断路器连接到HVDC开关站的母线,而直流电网的另外部分通过以下方式连接到HVDC开关站的汇流条: 开关柜断路器的断开速度较低。 通过使用本发明的高压直流输电开关装置,可以显着地降低HVDC开关站的成本,同时可以提供足够的保护。 在一个实施例中,快速DC断路器是形成HVDC站的一部分的HVDC站DC断路器。 在另一个实施例中,快速DC断路器是开关站DC断路器。

    SERIES - CONNECTED DC / DC CONVERTER FOR CONTROLLING THE POWER FLOW IN A HVDC POWER TRANSMISSION SYSTEM
    3.
    发明申请
    SERIES - CONNECTED DC / DC CONVERTER FOR CONTROLLING THE POWER FLOW IN A HVDC POWER TRANSMISSION SYSTEM 审中-公开
    系列 - 连接直流/直流转换器,用于控制高压直流输电系统中的功率流

    公开(公告)号:WO2012037964A1

    公开(公告)日:2012-03-29

    申请号:PCT/EP2010/063878

    申请日:2010-09-21

    CPC classification number: H02J3/36 H02J1/102 H02M3/158 Y02E60/60

    Abstract: An apparatus (302) for controlling the electric power transmission in a high voltage direct current, HVDC, power transmission system comprising at least one HVDC transmission line (102, 104, 106, 108, 110, 112, 114) for carrying direct current, wherein the apparatus (302) comprises a DC-to-DC converter (304) and a second converter (306) for converting alternating current to direct current and/or direct current to alternating current, the DC-to-DC converter having two DC sides for output and/or input of direct current, the second converter having an AC side (308) for output and/or input of alternating current and a DC side (310) for output and/or input of direct current. The DC-to-DC converter is connectable to the HVDC transmission line (102), and the second converter is connected via its DC side to the DC-to-DC converter. The second converter is connectable via its AC side to an AC source (314), and the apparatus is adapted to control the direct current of the HVDC transmission line by introducing a DC voltage in series with the HVDC transmission line. A HVDC power transmission system comprising the above-mentioned apparatus (302).

    Abstract translation: 一种用于控制高压直流电HVDC电力传输系统中的电力传输的装置(302),包括用于承载直流电流的至少一个HVDC传输线(102,104,106,108,110,112,114) 其中所述装置(302)包括DC-DC转换器(304)和用于将交流电转换为直流和/或直流电流至交流电流的第二转换器(306),所述DC-DC转换器具有两个DC 用于输出和/或输入直流电流的侧面,第二转换器具有用于输出和/或输入交流电流的AC侧(308)和用于输出和/或输入直流电的DC侧(310)。 DC-DC转换器可连接到HVDC传输线(102),第二转换器通过其DC侧连接到DC-DC转换器。 第二转换器可通过其AC侧连接到AC源(314),并且该装置适于通过引入与HVDC传输线串联的DC电压来控制HVDC传输线的直流电流。 一种包括上述装置(302)的高压直流输电系统。

    AN ARRANGEMENT FOR EXCHANGING POWER
    4.
    发明申请
    AN ARRANGEMENT FOR EXCHANGING POWER 审中-公开
    交换功率的安排

    公开(公告)号:WO2010115470A1

    公开(公告)日:2010-10-14

    申请号:PCT/EP2009/054308

    申请日:2009-04-09

    CPC classification number: H02J3/1842 H02M7/49 H02M2007/4835 Y02E40/22

    Abstract: An arrangement for exchanging power, in shunt connection, with a three-phase electric power network (2) comprises on one hand for each said phase a reactive impedance element (31, 41, 51) and a Voltage Source Converter (32, 42, 52) connected in series with said element, and on the other a control unit (25) configured to control semiconductor devices of turn-off type of said converter for generating a voltage with a fundamental frequency being equal to the fundamental frequency of the voltage of the respective said phase and by that control a flow of reactive power between said arrangement and the respective phase of said electric power network. Each Voltage Sou rce Converter comprises a series connection of switching cells in the form of so-called H-bridges comprisi ng two switch ing elements connected in parallel and each having at least two semiconductor assemblies connected in series. Each switching cell further comprises at least one energy storing capacitor connected in parallel with said switching elements.

    Abstract translation: 用于与三相电力网络(2)在分流连接中交换电力的装置一方面包括每个所述相位的无功阻抗元件(31,41,51)和电压源转换器(32,42, 52),并且另一个控制单元(25)被配置为控制所述转换器的关断型半导体器件,用于产生基本频率等于基准频率的基本频率的电压 所述相应的所述相位和所述控制器在所述装置和所述电力网络的相应相位之间的无功功率的流动。 每个电压转换器包括以所谓H桥形式的开关单元的串联连接,其包括并联连接的两个开关元件,并且每个具有串联连接的至少两个半导体组件。 每个开关单元还包括与所述开关元件并联连接的至少一个储能电容器。

    METHOD AND ARRANGEMENT TO DETERMINE THE CELL CAPACITOR VOLTAGE OF A CELL OF A MULTI- CELL POWER CONVERTER
    5.
    发明申请
    METHOD AND ARRANGEMENT TO DETERMINE THE CELL CAPACITOR VOLTAGE OF A CELL OF A MULTI- CELL POWER CONVERTER 审中-公开
    确定多单元电源转换器单元的电容电容电压的方法和布置

    公开(公告)号:WO2010127699A1

    公开(公告)日:2010-11-11

    申请号:PCT/EP2009/055524

    申请日:2009-05-07

    CPC classification number: H02M7/49 H02M1/32 H02M2007/4835

    Abstract: An arrangement to determine a cell capacitor voltage value (U dc ) of a cell (10") of a multi-cell power converter comprises the cell (10") and a control unit (28). The cell (10") itself comprises four power electronic valves (1-4) interconnected as a full-bridge converter having a first and a second phase leg, where each phase leg comprises a series-connection of two (1, 3; 2, 4) of the four power electronic valves and where the connection point (6; 7) between the two power electronic valves of each phase leg is externally connectable, a cell capacitor (5) being connected in parallel to the first and the second phase legs, and four gate units (16-19), each being connected to a corresponding one of the power electronic valves (1-4) as well as to the control unit (28). Each of the four gate units (16-19) comprises a voltage measurement unit (24-27) adapted to take a continuous voltage measurement across the corresponding power electronic valve, and each of the four gate units (16-19) is adapted to transmit its continuous voltage measurement. The control unit (28) is adapted to receive from each of the four gate units (16-19) its continuous voltage measurement and to determine the cell capacitor voltage value (U dc ) based on at least one of these voltage measurements.

    Abstract translation: 确定多小区功率转换器的小区(10“)的小区电容器电压值(Udc)的装置包括小区(10”)和控制单元(28)。 电池(10“)本身包括作为具有第一和第二相支脚的全桥转换器互连的四个电力电子阀(1-4),其中每个相支脚包括两个(1,2,3; 2)的串联连接 ,4),并且每个相支路的两个电力电子阀之间的连接点(6; 7)可外部连接的单元电容器(5),并联连接到第一和第二相 腿部和四个门单元(16-19),每个连接到相应的一个电动电子阀(1-4)以及控制单元(28),四个门单元(16-19 )包括适于在相应的电力电子阀上进行连续电压测量的电压测量单元(24-27),并且四个栅极单元(16-19)中的每一个适于传输其连续电压测量。控制单元 28)适于从四个栅极单元(16-19)中的每一个接收其连续电压 并且基于这些电压测量中的至少一个来确定单元电容器电压值(Udc)。

    HIGH VOLTAGE DC/DC CONVERTER
    6.
    发明申请
    HIGH VOLTAGE DC/DC CONVERTER 审中-公开
    高电压DC / DC转换器

    公开(公告)号:WO2013004282A1

    公开(公告)日:2013-01-10

    申请号:PCT/EP2011/061172

    申请日:2011-07-04

    Abstract: It is presented a high voltage DC/DC converter for converting between a first DC connection and a second DC connection. The high voltage DC/DC converter comprises: a first set of DC terminals; a second set of DC terminals); a multiphase transformer device comprising a plurality of primary windings and a corresponding plurality of secondary windings; a first converter arranged to convert DC to AC, comprising a plurality of phase legs serially connected between the first set of DC terminals, wherein each phase leg is connected to an AC connection of a respective primary winding; and a second converter arranged to convert AC from the secondary windings to DC on the second set of DC terminals.

    Abstract translation: 它呈现了用于在第一DC连接和第二DC连接之间进行转换的高压DC / DC转换器。 高压DC / DC转换器包括:第一组直流端子; 第二套直流端子); 多相变压器装置,包括多个初级绕组和相应的多个次级绕组; 布置成将DC转换成AC的第一转换器,包括串联连接在所述第一组DC端子之间的多个相位支路,其中每个相支路连接到相应的初级绕组的AC连接; 以及第二转换器,被布置成在第二组DC端子上将来自次级绕组的AC转换成DC。

    METHOD AND CONTROL ARRANGEMENT IN A POWER SYSTEM
    7.
    发明申请
    METHOD AND CONTROL ARRANGEMENT IN A POWER SYSTEM 审中-公开
    电力系统中的方法和控制装置

    公开(公告)号:WO2012146297A1

    公开(公告)日:2012-11-01

    申请号:PCT/EP2011/056810

    申请日:2011-04-29

    CPC classification number: H02M5/29 H02J3/1807 H02J3/24 Y02E40/30

    Abstract: It is presented a method of controlling a magnitude of an electrical parameter in a power system by means of a high voltage electron tube. The method comprises the steps of measuring (S1) the magnitude of the electrical parameter; generating (S2) a control signal based on the magnitude of the electrical parameter and on a reference magnitude of the electrical parameter;and switching (S3) the high voltage electron tube by means of the control signal such that the reference magnitude of the electrical parameter is essentially obtained. It is also presented a control arrangement and a power system.

    Abstract translation: 提出了一种通过高压电子管控制电力系统中的电参数的大小的方法。 该方法包括以下步骤:测量(S1)电参数的大小; 基于所述电参数的大小和所述电参数的参考幅度产生(S2)控制信号;以及通过所述控制信号切换(S3)所述高压电子管,使得所述电参数的参考幅度 基本上是得到的。 它还提供了一个控制装置和电力系统。

    ARRANGEMENT FOR TRANSMITTING POWER BETWEEN A DC POWER LINE AND AN AC POWER LINE
    8.
    发明申请
    ARRANGEMENT FOR TRANSMITTING POWER BETWEEN A DC POWER LINE AND AN AC POWER LINE 审中-公开
    用于在直流电源线和交流电源线之间传输功率的布置

    公开(公告)号:WO2012048754A1

    公开(公告)日:2012-04-19

    申请号:PCT/EP2010/065545

    申请日:2010-10-15

    CPC classification number: H02M7/537 H02J3/36 H02M7/483 H02M2007/4835 Y02E60/60

    Abstract: The invention concerns an arrangement (23) for transmitting power between a DC power line (12) and an AC power line (22A, 22B, 22C) carrying a voltage having a number of phases. The arrangement comprises a number of transformers (20A, 20B, 20C), one for each phase and a number of power transfer modules, one for each phase, connected in series between the DC power line and ground, where each module comprises a first branch including series connected converter cells (CA1, CA2, CB1, CB2, CC1, CC2 ) and a second branch comprising series connected switching elements (SW1A, SW2A, SW1B, SW2B, SW3A, SW3B). The primary winding of a transformer (20A, 20B, 20C) is connected to a corresponding AC phase conductor (22A, 22B, 22C) of the AC power line and the secondary winding is connected between a midpoint of the first branch and a midpoint of the second branch of a corresponding power transfer module.

    Abstract translation: 本发明涉及用于在DC电力线(12)和承载具有多个相位的电压的交流电力线(22A,22B,22C)之间传输电力的装置(23)。 该装置包括多个变压器(20A,20B,20C),每个相位一个和多个功率传输模块,每个相位一个串联连接在直流电源线和地之间,其中每个模块包括第一分支 包括串联转换器单元(CA1,CA2,CB1,CB2,CC1,CC2)和包括串联连接的开关元件(SW1A,SW2A,SW1B,SW2B,SW3A,SW3B)的第二分支。 变压器(20A,20B,20C)的初级绕组连接到交流电源线的相应的交流相位导体(22A,22B,22C),次级绕组连接在第一分支的中点和中间点之间 相应的电力传输模块的第二分支。

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