Control circuit
    1.
    发明授权

    公开(公告)号:US09954358B2

    公开(公告)日:2018-04-24

    申请号:US14378319

    申请日:2012-03-01

    Abstract: The control circuit includes first and second primary terminals for connection to a DC network, a secondary terminal connected in series between the first and second primary terminals and at least one auxiliary energy conversion element and an auxiliary terminal. The first and second primary terminals have a plurality of modules and a plurality of primary energy conversion elements connected in series therebetween to define a current transmission path, each module including at least one energy storage device, each energy storage device being selectively removable from the current transmission path. The plurality of modules include a first module and a second module the first module being connected in series with at least one primary energy conversion element between the first primary terminal and the secondary terminal to define a first current transmission path portion, and the second module being connected in series with at least one other primary energy conversion element between the second primary terminal and the secondary terminal to define a second current transmission path portion. The auxiliary energy conversion element is connected in series between the secondary and auxiliary terminals, the auxiliary terminal being for connection to ground.

    POWER ELECTRONIC MODULE
    2.
    发明申请
    POWER ELECTRONIC MODULE 审中-公开
    电力电子模块

    公开(公告)号:US20140313797A1

    公开(公告)日:2014-10-23

    申请号:US14357908

    申请日:2011-11-15

    CPC classification number: H02M7/72 H02M7/49 H02M2001/325 H02M2007/4835

    Abstract: In the field of voltage source converters which provide high voltage direct current (HVDC) power transmission and reactive power compensation there is a need for an improved power electronic module which exhibits high efficiency, provides a safe failure mode, and is tolerant of faults.A power electronic module (30; 70), for use in a chain-link converter of a voltage source converter providing high voltage direct current power transmission and reactive power compensation, comprises a first set (32) of series-connected switching elements connected in parallel with an energy storage device (34). The first set (32) of series-connected switching elements includes a first latching switching element (38) and a first non-latching switching element (40).

    Abstract translation: 在提供高压直流(HVDC)电力传输和无功补偿的电压源转换器领域中,需要一种改进的功率电子模块,其具有高效率,提供安全故障模式并且容忍故障。 一种用于提供高压直流电力传输和无功功率补偿的电压源转换器的链式转换器的电力电子模块(30; 70)包括连接在一起的串联开关元件的第一组(32) 与能量存储装置(34)平行。 第一组(32)的串联开关元件包括第一闭锁开关元件(38)和第一非锁定开关元件(40)。

    Converter with reactive power compensation
    3.
    发明授权
    Converter with reactive power compensation 有权
    无功补偿转换器

    公开(公告)号:US08837176B2

    公开(公告)日:2014-09-16

    申请号:US13388624

    申请日:2009-08-03

    Abstract: A voltage source converter for a HVDC power transmission system is disclosed. According to one aspect, the voltage source converter includes at least one phase element having series connected diodes configured to interconnect, in use, a DC network and an AC network. The voltage source converter further includes at least one auxiliary converter configured to act as a waveform synthesizer to modify the DC voltage presented to the DC side of one or more phase elements.

    Abstract translation: 公开了一种用于HVDC输电系统的电压源转换器。 根据一个方面,电压源转换器包括至少一个具有串联连接的二极管的相位元件,该二极管被配置为在使用中互连DC网络和AC网络。 电压源转换器还包括至少一个辅助转换器,其配置为充当波形合成器,以修改呈现给一个或多个相位元件的DC侧的DC电压。

    CONTROL CIRCUIT
    4.
    发明申请
    CONTROL CIRCUIT 有权
    控制电路

    公开(公告)号:US20150009594A1

    公开(公告)日:2015-01-08

    申请号:US14378319

    申请日:2012-03-01

    Abstract: The control circuit includes first and second primary terminals for connection to a DC network, a secondary terminal connected in series between the first and second primary terminals and at least one auxiliary energy conversion element and an auxiliary terminal. The first and second primary terminals have a plurality of modules and a plurality of primary energy conversion elements connected in series therebetween to define a current transmission path, each module including at least one energy storage device, each energy storage device being selectively removable from the current transmission path. The plurality of modules include a first module and a second module the first module being connected in series with at least one primary energy conversion element between the first primary terminal and the secondary terminal to define a first current transmission path portion, and the second module being connected in series with at least one other primary energy conversion element between the second primary terminal and the secondary terminal to define a second current transmission path portion. The auxiliary energy conversion element is connected in series between the secondary and auxiliary terminals, the auxiliary terminal being for connection to ground.

    Abstract translation: 控制电路包括用于连接到DC网络的第一和第二初级端子,串联连接在第一和第二主要端子与至少一个辅助能量转换元件和辅助端子之间的次级端子。 第一和第二主端子具有多个模块和多个一次能量转换元件,其间串联连接以限定当前传输路径,每个模块包括至少一个能量存储装置,每个能量存储装置可从电流选择性地移除 传输路径。 多个模块包括第一模块和第二模块,第一模块与第一主要端子和次级端子之间的至少一个主要能量转换元件串联连接以限定第一电流传输路径部分,第二模块是 与第二主要端子和次级端子之间的至少一个其它主要能量转换元件串联连接以限定第二电流传输路径部分。 辅助能量转换元件串联连接在辅助端子和辅助端子之间,辅助端子用于连接到地面。

    Control circuit for DC network to maintain zero net change in energy level
    5.
    发明授权
    Control circuit for DC network to maintain zero net change in energy level 有权
    直流网络的控制电路维持零能量水平的净变化

    公开(公告)号:US09209693B2

    公开(公告)日:2015-12-08

    申请号:US14356882

    申请日:2011-11-07

    Abstract: There is a control circuit comprising first and second DC terminals for connection to a DC network, the first and second DC terminals having a plurality of modules and at least one energy conversion element connected in series therebetween to define a current transmission path, the plurality of modules defining a chain-link converter, each module including at least one energy storage device, the or each energy storage device being selectively removable from the current transmission path to cause a current waveform to flow from the DC network through the current transmission path and the or each energy conversion element and thereby remove energy from the DC network, the or each energy storage device being selectively removable from the current transmission path to modulate the current waveform to maintain a zero net change in energy level of the chain-link converter.

    Abstract translation: 存在包括用于连接到DC网络的第一和第二DC端子的控制电路,所述第一和第二DC端子具有多个模块和至少一个在其间串联连接的能量转换元件,以限定当前传输路径, 限定链式转换器的模块,每个模块包括至少一个能量存储装置,所述或每个能量存储装置可选地从当前传输路径移除,以使电流波形从DC网络流过当前传输路径,并且 或每个能量转换元件,从而从DC网络去除能量,所述或每个能量存储装置可选择性地从当前传输路径移除,以调制电流波形,以维持链式转换器的能量级别的零净变化。

    HYBRID HVDC CONVERTER
    6.
    发明申请
    HYBRID HVDC CONVERTER 有权
    混合式高压直流转换器

    公开(公告)号:US20130208521A1

    公开(公告)日:2013-08-15

    申请号:US13639844

    申请日:2010-04-08

    Abstract: A power electronic converter for use in high voltage direct current power transmission and reactive power compensation which comprises at least one converter limb including first and second DC terminals for connection in use to a DC network, the or each converter limb including at least one first converter block, and at least one second converter block connected between the first and second DC terminals; the or each first converter block including a plurality of line-commutated thyristors and at least one first AC terminal for connection in use to an AC network, the or each second converter block including, at least one auxiliary converter including a plurality of self-commutated switching elements; wherein the self-commutated switching elements are controllable in use to inject a voltage to modify a DC voltage presented to the DC side of the converter limb and/or modify an AC voltage and an AC current on the AC side of the power electronic converter.

    Abstract translation: 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,其包括至少一个转换器支路,该转换器支路包括用于在DC网络中使用的连接的第一和第二DC终端,所述或每个转换器支路包括至少一个第一转换器 并且连接在所述第一和第二DC端子之间的至少一个第二转换器块; 所述或每个第一转换器块包括多个线路换向晶闸管和用于连接到AC网络的至少一个第一AC端子,所述或每个第二转换器块包括至少一个辅助转换器,其包括多个自换向 开关元件; 其中所述自换向开关元件在使用中是可控的,以便注入电压以修改呈现给所述转换器支路的DC侧的DC电压和/或修改所述电力电子转换器的AC侧上的AC电压和AC电流。

    CONVERTER WITH ACTIVE FAULT CURRENT LIMITATION
    8.
    发明申请
    CONVERTER WITH ACTIVE FAULT CURRENT LIMITATION 有权
    具有主动故障电流限制的转换器

    公开(公告)号:US20120182771A1

    公开(公告)日:2012-07-19

    申请号:US13387698

    申请日:2009-07-31

    Abstract: A voltage source converter for high voltage DC power transmission is disclosed. According to one aspect, the voltage source converter is connectable between a DC network and another electrical network to interconnect the DC network and the other electrical network. The voltage source converter includes a converter unit configured to convert power flowing between the DC network and the other electrical network and at least one fault unit. One or more of the fault units includes at least one fault module having a voltage source that is operable, in the event of a short circuit in a DC network connected to the voltage source converter, to produce a voltage that acts to reduce current flowing through the voltage source converter and the short circuit.

    Abstract translation: 公开了一种用于高压直流电力传输的电压源转换器。 根据一个方面,电压源转换器可在DC网络和另一电网之间连接,以便互连DC网络和另一电网。 电压源转换器包括转换器单元,其被配置为转换在DC网络和另一电网之间流动的功率以及至少一个故障单元。 一个或多个故障单元包括至少一个具有电压源的故障模块,该电压源在连接到电压源转换器的DC网络中短路的情况下可操作,以产生用于减少流过电流的电压 电压源转换器和短路。

    Converter for HVDC transmission and reactive power compensation
    9.
    发明授权
    Converter for HVDC transmission and reactive power compensation 有权
    变压器用于高压直流输电和无功补偿

    公开(公告)号:US09065299B2

    公开(公告)日:2015-06-23

    申请号:US13805333

    申请日:2010-06-18

    Abstract: A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises a plurality of switching elements interconnecting in use a DC network and one or more AC networks, the plurality of switching elements being controllable in use to facilitate power conversion between the AC and DC networks, wherein in use, the plurality of switching elements are controllable to form one or more short circuits within the power electronic converter so as to define one or more primary current flow paths, the or each primary current flow path including a respective one of the AC networks and the power electronic converter and bypassing the DC network.

    Abstract translation: 用于高压直流电力传输和无功补偿的电力电子转换器包括在使用中互连DC网络和一个或多个AC网络的多个开关元件,所述多个开关元件在使用中是可控的,以便于在 AC和DC网络,其中在使用中,所述多个开关元件是可控制的,以在所述电力电子转换器内形成一个或多个短路,以便限定一个或多个初级电流流动路径,所述或每个初级电流流动路径包括 相应的一个交流网络和电力电子转换器,并绕过直流网络。

    HIGH VOLTAGE DC CIRCUIT BREAKER APPARATUS
    10.
    发明申请
    HIGH VOLTAGE DC CIRCUIT BREAKER APPARATUS 审中-公开
    高电压直流断路器设备

    公开(公告)号:US20150116881A1

    公开(公告)日:2015-04-30

    申请号:US14379746

    申请日:2012-03-01

    Abstract: A circuit breaker apparatus for use in high voltage direct current (HVDC) power transmission is provided. The circuit breaker apparatus has one module or a plurality of series-connected modules, the or each module including: first, second, third and fourth conduction paths and first and second terminals for connection to an electrical network, each conduction path extending between the first and second terminals, the first conduction path including a mechanical switching element, the second conduction path including at least one semiconductor switching element, the third conduction path including a snubber circuit having an energy storage device and the fourth conduction path including a resistive element.

    Abstract translation: 提供一种用于高压直流(HVDC)电力传输的断路器装置。 断路器装置具有一个模块或多个串联连接的模块,该模块或每个模块包括:第一,第二,第三和第四导电路径以及用于连接到电网的第一和第二端子,每个导电路径在第一 和第二端子,所述第一导电路径包括机械开关元件,所述第二导电路径包括至少一个半导体开关元件,所述第三导电路径包括具有能量存储装置的缓冲电路,所述第四导电路径包括电阻元件。

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