CONVERTER
    1.
    发明授权

    公开(公告)号:EP2940852B1

    公开(公告)日:2018-07-25

    申请号:EP13867398.3

    申请日:2013-12-27

    IPC分类号: H02M7/483

    摘要: The present invention relates to a converter in which a plurality of sub-modules, each including an energy storage unit and power semiconductors, is connected in series to each other, wherein each of the sub-modules is configured by adding a simple and inexpensive auxiliary circuit unit between two half-bridge units, and thus fault current is allowed to flow into the energy storage unit of each half-bridge unit, thereby blocking or reducing the fault current. The present invention provides a converter including a plurality of sub-modules connected in series to each other, wherein each of the sub-modules includes a first half-bridge unit including a first energy storage unit, and a plurality of first power semiconductors connected in parallel to the first energy storage unit and connected in series to each other; a second half-bridge unit including a second energy storage unit, and a plurality of second power semiconductors connected in parallel to the second energy storage unit and connected in series to each other; and an auxiliary circuit unit connecting the first half-bridge unit and the second half-bridge unit; wherein the auxiliary circuit unit includes a single third power semiconductor and a single diode.

    DC BREAKER
    2.
    发明公开
    DC BREAKER 审中-公开
    直流断路器

    公开(公告)号:EP3312866A1

    公开(公告)日:2018-04-25

    申请号:EP16814681.9

    申请日:2016-06-22

    发明人: KIM, Byung Choul

    IPC分类号: H01H33/59 H01H33/02 H01H33/14

    摘要: The present disclosure relates to a DC breaker that can block a fault current generated in a direct current line, by using a unidirectional semiconductor switch device. The DC breaker includes: a mechanical switch that is connected between first and second direct current lines; a first unidirectional semiconductor switch device that transfers a resonant current to the first direct current line when the fault current is generated, so that a current of the first direct current line becomes zero; an LC resonant circuit that is charged by receiving a steady state current of the first direct current line, and generates the resonant current to the first unidirectional semiconductor switch device when the fault current is generated; and a second unidirectional semiconductor switch device that enables a capacitor of the LC resonant circuit to be charged with the steady state current of the first direct current line.

    摘要翻译: 本公开涉及一种通过使用单向半导体开关器件可以阻断在直流线路中产生的故障电流的DC断路器。 直流断路器包括:连接在第一和第二直流线路之间的机械开关; 第一单向半导体开关器件,其在发生故障电流时将谐振电流传递到第一直流线路,以使得第一直流线路的电流变为零; LC谐振电路,其通过接收第一直流线路的稳态电流而被充电,并且当产生故障电流时产生到第一单向半导体开关器件的谐振电流; 以及第二单向半导体开关器件,其使LC谐振电路的电容器能够用第一直流线路的稳态电流充电。

    POWER SUPPLY DEVICE FOR SUB-MODULE CONTROLLER OF MMC CONVERTER
    3.
    发明公开
    POWER SUPPLY DEVICE FOR SUB-MODULE CONTROLLER OF MMC CONVERTER 审中-公开
    用于MMC转换器的子模块控制器的电源装置

    公开(公告)号:EP3242389A1

    公开(公告)日:2017-11-08

    申请号:EP15875669.2

    申请日:2015-12-29

    IPC分类号: H02M7/19 H02J1/00

    摘要: Disclosed herein is a power supply apparatus for a sub-module controller of a Modular Multilevel Converter (MMC), which supplies driving power to the sub-module controller of an MMC connected to a High Voltage Direct Current (HVDC) system. The power supply apparatus includes a bridge circuit unit including N (N≥2, integer) energy storage units for storing a DC voltage in series-connected sub-modules in the MMC and multiple power semiconductor devices connected in parallel with the N energy storage units in a form of a bridge; and a DC/DC converter for converting a voltage output from output terminals formed between both ends of n (1≤n

    摘要翻译: 本文公开了一种用于模块化多电平转换器(MMC)的子模块控制器的电源设备,所述电源设备向连接到高压直流(HVDC)系统的MMC的子模块控制器提供驱动电力。 该电源装置包括桥式电路单元,该桥式电路单元包括用于在MMC中串联连接的子模块中存储DC电压的N(N≥2,整数)个能量存储单元以及与该N个能量存储单元并联连接的多个功率半导体器件 以桥的形式; 以及DC / DC转换器,用于将在N个能量存储单元中的n(1≤n

    MODULE REPLACEMENT DEVICE OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM
    5.
    发明公开
    MODULE REPLACEMENT DEVICE OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM 审中-公开
    高压直流输电系统的模块更换装置

    公开(公告)号:EP3179589A1

    公开(公告)日:2017-06-14

    申请号:EP15829961.0

    申请日:2015-07-08

    IPC分类号: H02J1/00

    CPC分类号: H02J1/00 H02J1/10

    摘要: The present invention relates to a module replacement device of a high voltage direct current transmission system. In the present invention, a replacement base (40) is provided in a structure (1) by using a support member (70) such that a sub-module (30) movably provided at a fixing base (10) of the structure (1) can be replaced by being withdrawn outside of the structure (1). A rear end of a base plate (42) of the replacement base (40) is hooked to an insulation support part (9) of the structure (1), and a front end of the replacement base (40) is supported by the support member (70) hooked to one side of the structure (1). The support member (70) is provided with a turn buckle (74) so as to adjust the replacement base (40) such that the replacement base is horizontally provided thereto. The rear end of the replacement base (40) is provided with a rail connection guide (62) for matching a fixing rail (16) of the fixing base (10) provided in the structure (1) with a guide rail (51) of the replacement base (40). The rail connection guide (62) has a rail slot (64) so as to guide the fixing rail (16) to the guide rail (51) side. According to the present invention as above, the replacement base (40) can easily and firmly be provided in the structure (1) such that the module (30) can be replaced in an easy and safe manner.

    摘要翻译: 高压直流输电系统的模块更换装置本发明涉及高压直流输电系统的模块更换装置。 在本发明中,通过使用支撑构件(70)在结构(1)中提供替换基部(40),使得可移动地设置在结构(1)的固定基部(10)处的子模块 )可以通过撤出结构(1)之外而被取代。 替换基座(40)的基板(42)的后端钩在结构(1)的绝缘支撑部件(9)上,并且替换基座(40)的前端由支撑件 构件(70)钩在结构(1)的一侧上。 支撑构件70设置有转环扣74以调整替换基座40,使得替换基座水平地设置在其上。 替换基座(40)的后端设置有导轨连接导向件(62),用于将设置在结构(1)中的固定基座(10)的固定导轨(16)与导轨 替换基座(40)。 导轨连接引导件(62)具有导轨槽(64),以将固定导轨(16)引导至导轨(51)侧。 根据如上所述的本发明,替换基座(40)可以容易且牢固地设置在结构(1)中,使得模块(30)能够以简单和安全的方式被替换。

    POWER DUPLICATION APPARATUS FOR HVDC SYSTEM AND CONTROL METHOD THEREFOR
    6.
    发明公开
    POWER DUPLICATION APPARATUS FOR HVDC SYSTEM AND CONTROL METHOD THEREFOR 审中-公开
    雷诺德高压直流输电系统在STEUERUNGSVERFAHRENDAFÜR

    公开(公告)号:EP3091635A1

    公开(公告)日:2016-11-09

    申请号:EP14877060.5

    申请日:2014-12-26

    IPC分类号: H02J9/06 H02J1/00

    摘要: The present invention relates to a power duplication apparatus for an HVDC system and a control method therefor, and the power duplication apparatus for an HVDC system comprises: a first independent power generator receiving first input power so as to generate and output first power; a second independent power generator receiving second input power so as to generate and output the first power; a first power supplier selectively receiving the first power output, respectively, from the first independent power generator and the second independent power generator so as to convert the first power into second power having a smaller size than that of the first power and output the same; a second power supplier for selectively receiving the first power output, respectively, from the first independent power generator and the second independent power generator so as to convert the first power into the second power having a smaller size than that of the first power and output the same; a first HVDC controller for receiving the second power output from the first power supplier so as to activate the same and control an HVDC converter; a second HVDC controller for receiving the second power output from the second power supplier so as to activate the same and control the HVDC converter; and a power monitoring controller for enabling the first power output from the first independent power generator or the second independent power generator, so as to generate the first power having the same size as that of the first reference power if the first power has a size different from that of the first reference power by comparing the sizes of the first power and pre-stored first reference power, to be transferred to the first power supplier and second power supplier.

    摘要翻译: 本发明涉及一种用于HVDC系统的电力复制装置及其控制方法,并且用于HVDC系统的电力复制装置包括:第一独立发电机,接收第一输入电力以产生并输出第一电力; 接收第二输入功率以产生和输出第一功率的第二独立发电机; 分别从第一独立发电机和第二独立发电机选择性地接收第一功率输出的第一电力供应器,以便将第一功率转换成具有比第一功率小的尺寸的第二功率并将其输出; 分别从第一独立发电机和第二独立发电机选择性地接收第一功率输出的第二电力供应器,以将第一功率转换成具有比第一功率更小的尺寸的第二功率,并输出 相同; 第一HVDC控制器,用于接收来自第一供电器的第二功率输出,以激活它并控制HVDC转换器; 第二HVDC控制器,用于接收来自第二电源的第二电力输出以激活它并控制HVDC转换器; 以及功率监视控制器,用于实现来自第一独立发电机或第二独立发电机的第一功率输出,以便如果第一功率的尺寸不同,则产生具有与第一参考功率相同尺寸的第一功率 通过比较第一功率和预先存储的第一参考功率的尺寸,将其传送到第一电源和第二电源。

    POWER SUPPLY DEVICE FOR HVDC CONTROLLER
    7.
    发明公开
    POWER SUPPLY DEVICE FOR HVDC CONTROLLER 审中-公开
    STREVERSORGUNGSVORRICHTUNGFÜREINE HVDC-STEUERUNG

    公开(公告)号:EP3091634A1

    公开(公告)日:2016-11-09

    申请号:EP14876661.1

    申请日:2014-12-24

    IPC分类号: H02J9/06 H02J1/00

    CPC分类号: H02J3/36 H02M5/4585 Y02E60/60

    摘要: The present invention consists of: a first HVDC converter unit which is connected to a powered electrical grid; a second HVDC converter unit which is connected to a powerless electrical grid and connected to the first HVDC converter unit through a DC transmission line so as to receive a first DC power source from the first HVDC converter unit; a voltage distributor which is connected to the DC transmission line connecting the first HVDC converter unit and the second HVDC converter unit so as to receive and distribute the first DC power source applied from the first HVDC converter unit to the second HVDC converter unit, and output a second DC power source that is lower than the first DC power source; and a DC-DC converter which is connected to the voltage distributor so as to receive the second DC power source, convert the second DC power source into actuating power for use in a HVDC controller and output the actuating power.

    摘要翻译: 本发明包括:连接到动力电网的第一HVDC转换器单元; 第二HVDC转换器单元,其连接到无功电网并通过DC传输线连接到第一HVDC转换器单元,以便从第一HVDC转换器单元接收第一DC电源; 电压分配器,其连接到连接第一HVDC转换器单元和第二HVDC转换器单元的DC传输线,以将从第一HVDC转换器单元施加的第一DC电源接收并分配到第二HVDC转换器单元,并输出 低于第一直流电源的第二直流电源; 以及连接到电压分配器以便接收第二DC电源的DC-DC转换器,将第二DC电源转换成用于HVDC控制器的驱动电源并输出致动电力。

    HIGH-VOLTAGE DC CIRCUIT BREAKER
    8.
    发明公开
    HIGH-VOLTAGE DC CIRCUIT BREAKER 审中-公开
    HOCHSPANNUNGS-GLEICHSTROMSCHUTZSCHALTER

    公开(公告)号:EP3091626A1

    公开(公告)日:2016-11-09

    申请号:EP14876937.5

    申请日:2014-12-30

    IPC分类号: H02H3/087

    摘要: The present invention relates to a high-voltage direct current (DC) circuit breaker for cutting off a fault current from flowing through a line during a malfunction in a high-voltage DC line. A DC circuit breaker according to the present invention comprises: a mechanical switch disposed on a DC line; an L/C circuit connected in parallel with the mechanical switch (110), and comprising a capacitor and a reactor connected in series to each other to generate LC resonance; a first semiconductor switch, connected in parallel to the L/C circuit, for switching the unidirectional flow of the current; and a second semiconductor switch, connected in parallel to the first semiconductor switch, for switching the uni- and reverse-directional flow of current.

    摘要翻译: 本发明涉及一种高压直流(DC)断路器,用于在高压直流线路故障期间切断故障电流流经线路。 根据本发明的直流断路器包括:设置在DC线路上的机械开关; 与机械开关(110)并联连接的L / C电路,并且包括彼此串联连接以产生LC谐振的电容器和电抗器; 与L / C电路并联连接的用于切换电流的单向流的第一半导体开关; 以及与第一半导体开关并联连接的用于切换单向和反向电流的第二半导体开关。

    MODULAR COOLING APPARATUS FOR HIGH-VOLTAGE DIRECT-CURRENT TRANSMISSION SYSTEM
    9.
    发明公开
    MODULAR COOLING APPARATUS FOR HIGH-VOLTAGE DIRECT-CURRENT TRANSMISSION SYSTEM 审中-公开
    MODULAREKÜHLVORRICHTUNGFÜREIN HOCHSPANNUNGS-GLEICHSTROMÜBERTRAGUNGSSYSTEM

    公开(公告)号:EP3089570A1

    公开(公告)日:2016-11-02

    申请号:EP14873160.7

    申请日:2014-12-24

    IPC分类号: H05K7/20

    摘要: The present invention relates to a modular cooling apparatus for a high-voltage direct-current transmission system. A sub-module (10) according to the present invention comprises a power unit (12) in the front and a capacitor unit (13) in the rear, and a heat sink (30) for discharging heat generated from the interior is provided in an interior space (14') of a power unit housing (14) forming the exterior of the power unit (12). A coolant path (31) is provided in the interior of the heat sink (30). The entrance and exit of the coolant path (31) are located adjacent to the bottom surface of the interior space (14'). Connecting couplers (20) for supplying coolant to the interior space (14') are provided on the sloped surface (16) on the bottom end of the front surface (15) of the power unit housing (14). The sloped surface (16) is formed so as to face the ground at an angle. On both side surfaces of the power unit housing (14) are pass-through parts (22), each of which is provided with a louver plate (24) having louvers (26) to allow air to circulate between the interior space (14') and the outside. As such, according to the present invention, heat is dissipated more effectively while damage to the sub-module (10) due to coolant leakage does not occur.

    摘要翻译: 本发明涉及用于高压直流传输系统的模块化冷却装置。 根据本发明的子模块(10)包括前面的动力单元(12)和后部的电容器单元(13),并且用于排放从内部产生的热量的散热器(30)设置在 形成动力单元(12)的外部的动力单元壳体(14)的内部空间(14')。 冷却剂路径(31)设置在散热器(30)的内​​部。 冷却剂路径(31)的入口和出口位于内部空间(14')的底表面附近。 在动力单元壳体(14)的前表面(15)的底端的倾斜表面(16)上设置有用于将冷却剂供应到内部空间(14')的连接件(20)。 倾斜表面(16)形成为以一定角度对着地面。 在动力单元壳体(14)的两个侧表面上都是穿通部分(22),每个部分设有一个具有百叶窗(26)的百叶板(24),以使空气在内部空间(14')之间循环, )和外面。 因此,根据本发明,更有效地消散热量,同时不会发生由于冷却剂泄漏而对子模块(10)的损坏。

    BYPASS APPARATUS FOR CONVERTER
    10.
    发明公开
    BYPASS APPARATUS FOR CONVERTER 审中-公开
    旁路装置FOR A转换器

    公开(公告)号:EP2940844A1

    公开(公告)日:2015-11-04

    申请号:EP13868169.7

    申请日:2013-12-27

    IPC分类号: H02M1/32

    摘要: The present invention provides an apparatus for bypassing a phase current from a malfunctioning sub module in a converter. The converter includes multiple sub modules each having an energy storage unit, and at least one power semiconductor circuit which is connected in parallel to the energy storage unit and which includes a power semiconductor switch and free-wheeling diodes, wherein the sub modules are connected in series to each other. The bypass apparatus for a converter according to the present invention comprises: a vacuum switch tube for disconnecting between a first connection terminal and a second connection terminal of a malfunctioning sub module upon the occurrence of a malfunction in a specific sub module and bypassing a phase current from said malfunctioning sub module; and a control device for controlling the operation of the vacuum switch tube. The control device comprises: permanent magnets having different polarities and guiding the disconnecting and canceling operations of the vacuum switch tube; a core fixed to enable the permanent magnets to contact or be separated from the core; a coil wound around the core; a power source unit for applying power to the coil; and a control unit for controlling the supply of power from the power source unit to the coil upon the occurrence of a malfunction in the sub module. The control unit controls the power source unit such that the power is supplied to the coil upon the occurrence of a malfunction in the sub module and the permanent magnets are pushed out by the magnetic properties induced in the core so as to guide the disconnecting operation of the vacuum switch tube and bypass the phase current.