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    • 1. 发明申请
    • HVDC CONVERTER COMPRISING FULLBRIDGE CELLS FOR HANDLING A DC SIDE SHORT CIRCUIT
    • 包括用于处理直流侧短路的FULLBRIDGE电池的HVDC转换器
    • WO2012013248A1
    • 2012-02-02
    • PCT/EP2010/061145
    • 2010-07-30
    • AREVA T&D UK LIMITEDTRAINER, David ReginaldCROOKES, WilliamGREEN, Timothy CharlesMERLIN, Michael Marc Claude
    • TRAINER, David ReginaldCROOKES, WilliamGREEN, Timothy CharlesMERLIN, Michael Marc Claude
    • H02M1/32H02J3/18H02M7/797
    • H02J7/02H02J3/1857H02J3/36H02M1/32H02M7/797H02M2007/4835Y02E40/16Y02E40/26Y02E60/60
    • A power electronic converter (40) for use in high voltage direct current power transmission and reactive power compensation comprises three converter limbs (42), each converter limb (42) including first and second DC terminals (46,48) for connection in use to a DC network (52) and an AC terminal (50) for connection in use to a respective phase of a three- phase AC network (54), each converter limb (42) defining first and second limb portions (56,58) being connected in series between the respective AC terminal (60) and a respective one of the first and second DC terminals (46,48), each limb portion (56,58) including at least one switching element (62,66) being controllable in use to facilitate power conversion between the AC and DC networks (52,54), the power electronic converter (40) further including a plurality of auxiliary units (44), each auxiliary unit (44) being operably associated with the respective phase of the AC network (54), each auxiliary unit (44) including at least one module (60) including a voltage source, the limb portions (56,58) being controllable in use to define at least one three-phase static synchronous compensator including at least one of the plurality of auxiliary units (44) in each branch of a star configuration, each of the first and/or second DC terminals (46,48) defining the neutral point of the respective star configuration.
    • 一种用于高压直流电力传输和无功补偿的电力电子转换器(40)包括三个转换器分支(42),每个转换器分支(42)包括第一和第二直流终端(46,48),用于连接到 DC网络(52)和AC端子(50),用于在三相AC网络(54)的相应阶段连接,每个转换器限定第一和第二肢体部分(56,58) 串联连接在相应的AC端子(60)和第一和第二DC端子(46,48)中的相应的一个之间,每个分支部分(56,58)包括至少一个开关元件(62,66) 用于促进AC和DC网络之间的功率转换(52,54),电力电子转换器(40)还包括多个辅助单元(44),每个辅助单元(44)可操作地与 AC网络(54),每个辅助单元(44)包括至少一个m (60)包括电压源,所述肢体部分(56,58)在使用中是可控制的,以限定至少一个三相静态同步补偿器,所述至少一个三相静态同步补偿器包括所述多个辅助单元(44)中的至少一个辅助单元 第一和/或第二DC端子(46,48)中的每一个限定相应的星形结构的中性点。
    • 4. 发明申请
    • METHOD OF ADJUSTING A VOLTAGE ACROSS TERMINALS OF A LOAD
    • 调整负载端子电压的方法
    • WO2011060811A1
    • 2011-05-26
    • PCT/EP2009/065314
    • 2009-11-17
    • AREVA T&D UK LIMITEDWISZNIEWSKI, AndrzejREBIZANT, WaldemarKLIMEK, Andrzej
    • WISZNIEWSKI, AndrzejREBIZANT, WaldemarKLIMEK, Andrzej
    • G05F1/14H02J3/24
    • G05F1/14H02M5/12
    • Method of adjusting a voltage present across terminals of a load, the load being mounted across terminals of a secondary winding of a transformer (T) having a primary winding and a secondary winding, the voltage being adjusted by modifying a position of a tap point along the first winding due to the action of a command signal (d) on a tap changer (1) connected to the primary winding, characterized in that said method comprises a step of determining, by means of a computer (2), a relationship which indicates if a relative increase of the secondary voltage is greater than a relative decrease of the primary voltage or not, the position of the tap point being modified to increase the secondary voltage if a relative increase of the secondary voltage is greater than a relative decrease of the primary voltage, and being blocked or reversed, if not.
    • 调整负载端子两端的电压的方法,负载被安装在具有初级绕组和次级绕组的变压器(T)的次级绕组的端子上,该电压通过修改分接点的位置而被调整 由于在与初级绕组连接的抽头变换器(1)上的命令信号(d)的作用,所述第一绕组的特征在于,所述方法包括通过计算机(2)确定与 指示次级电压的相对增加是否大于初级电压的相对降低,如果次级电压的相对增加大于相对降低,则抽头点的位置被修改以增加次级电压 初级电压,如果没有,则被阻塞或反转。
    • 9. 发明申请
    • VACUUM INTERRUPTER
    • 真空中断器
    • WO2011120590A1
    • 2011-10-06
    • PCT/EP2010/054464
    • 2010-04-02
    • AREVA T&D UK LIMITEDPARASHAR, Rama Shanker
    • PARASHAR, Rama Shanker
    • H01H33/66
    • H01H33/66238H01H33/66207H01H33/66261H01H2033/66223
    • A vacuum interrupter comprises a tubular bellows (30) including a first hollow bore (32); at least one sub- assembly(34), each sub-assembly (34) including an end cap (42), the or each end cap (42) including at least one second hollow bore and having a composition including glass or including glass-ceramic; at least one primary annular metallic element (36) being operably connected between the or each end cap (42) and one of respective ends of the tubular bellows (30); a pair of electrically conductive contact elements (38); and a pair of electrically conductive rods (40), each rod (40) being operably connected to a respective contact element (38) at a first end and being connected in use to an electrical network at a second end, a portion of at least one rod (40) being retained inside the or each second hollow bore of a respective end cap (42), wherein the or each end cap (42) and each rod (40) are operably connected to one of the respective ends of the tubular bellows (30) to define a vacuum-tight enclosure; the contact elements (38) are located inside the enclosure and arranged to define opposed contact surfaces; and the tubular bellows (30) is controllable to expand or contract to move one rod (40) relative to the other rod (40) to open or close a gap between the opposed contact surfaces.
    • 真空断路器包括管状波纹管(30),其包括第一中空孔(32); 至少一个子组件(34),每个子组件(34)包括端盖(42),所述或每个端盖(42)包括至少一个第二中空孔,并且具有包括玻璃或包括玻璃 - 陶瓷; 至少一个主环形金属元件(36)可操作地连接在所述或每个端盖(42)与所述管状波纹管(30)的相应端部中的一个之间。 一对导电接触元件(38); 和一对导电杆(40),每个杆(40)在第一端处可操作地连接到相应的接触元件(38),并且在使用中连接到第二端的电网,至少一部分 一个杆(40)被保持在相应的端盖(42)的每个第二中空孔内,其中每个端盖(42)和每个杆(40)可操作地连接到管状的相应端部中的一个 波纹管(30)以限定真空密封的外壳; 接触元件(38)位于外壳内并且布置成限定相对的接触表面; 并且管状波纹管(30)可控制地膨胀或收缩以相对于另一个杆(40)移动一个杆(40)以打开或关闭相对的接触表面之间的间隙。
    • 10. 发明申请
    • HIGH VOLTAGE DCDC CONVERTER
    • 高电压DCDC转换器
    • WO2011060812A1
    • 2011-05-26
    • PCT/EP2009/065327
    • 2009-11-17
    • AREVA T&D UK LIMITEDDAVIDSON, ColinTRAINER, DavidWITHANAGE, Ruchira
    • DAVIDSON, ColinTRAINER, DavidWITHANAGE, Ruchira
    • H02M3/158H02M3/335
    • H02M3/158H02M3/33507H02M7/487H02M2007/4835
    • A DC voltage source converter for high voltage DC power transmission comprises at least one inductor (50) and at least one chain-link converter (48) connected between first and second DC terminals (52, 54), the or each chain-link converter (48) including a chain of modules (56) in series, each module including one or more semiconductor switches (58) and one or more energy storage devices (60), the semiconductor switches (58) being controllable in use to provide a continuously variable voltage source wherein the or each chain-link converter (48) is operable when DC networks are connected in use to the first and second DC terminals (52, 54) to control switching of the modules (56) to selectively enable one DC network to charge the or each inductor (50), or enable the or each inductor (50) to discharge into the other DC network.
    • 用于高压直流电力传输的直流电压源转换器包括连接在第一和第二直流端子(52,54)之间的至少一个电感器(50)和至少一个链条转换器(48),该链接转换器 (48),包括串联的模块链(56),每个模块包括一个或多个半导体开关(58)和一个或多个能量存储装置(60),所述半导体开关(58)在使用中是可控的,以提供连续 可变电压源,其中当DC网络在使用中连接到第一和第二DC终端(52,54)时,链路转换器(48)可操作,以控制模块(56)的切换以选择性地启用一个DC网络 对所述或每个电感器(50)进行充电,或使所述或每个电感器(50)放电到所述另一个DC网络中。