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公开(公告)号：US09350269B2
公开(公告)日：2016-05-24
申请号：US13388277
申请日：2009-07-31
CPC分类号： H02M7/797 , H02J3/1857 , H02J3/36 , H02M1/12 , H02M1/14 , H02M2001/0077 , H02M2007/4835 , Y02E40/26 , Y02E60/60
摘要： A circuit for a hybrid voltage source converter suitable for high voltage DC power transmission and reactive power compensation. The circuit comprises an assembly of electrically interconnected elements (Elements 1 to 20) including a plurality of first elements (Elements 1 to 6) and a plurality of second elements (Elements 7 to 20). Each of the first and second elements is configurable to be bypassed, to be disconnected or to include a circuit arrangement of one or more electronic components to construct, in use, a hybrid voltage source converter including at least one first element and at least one second element and in which the circuit arrangement included in the or each first element is different to the circuit arrangement included in the or each second element.
摘要翻译： 用于混合电压源转换器的电路，适用于高压直流输电和无功补偿。 电路包括包括多个第一元件（元件1至6）和多个第二元件（元件7至20）的电互连元件（元件1至20）的组件。 第一和第二元件中的每一个可配置为被旁路，被断开或包括一个或多个电子部件的电路布置，以在使用中构建混合电压源转换器，该混合电压源转换器包括至少一个第一元件和至少一个第二元件 元件，并且其中包括在或每个第一元件中的电路布置与包括在或每个第二元件中的电路布置不同。
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公开(公告)号：US20120182771A1
公开(公告)日：2012-07-19
申请号：US13387698
申请日：2009-07-31
IPC分类号： H02H7/12
CPC分类号： H02J3/1857 , H02J3/36 , H02M1/32 , H02M7/797 , H02M2007/4835 , Y02E40/26 , Y02E60/60
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US09455575B2
公开(公告)日：2016-09-27
申请号：US13387698
申请日：2009-07-31
CPC分类号： H02J3/1857 , H02J3/36 , H02M1/32 , H02M7/797 , H02M2007/4835 , Y02E40/26 , Y02E60/60
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20150116881A1
公开(公告)日：2015-04-30
申请号：US14379746
申请日：2012-03-01
IPC分类号： H02H9/02
CPC分类号： H02H9/02 , H01H9/542 , H01H33/596 , H02H3/087 , H02H7/1227 , H03K17/08116
摘要： 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.
摘要翻译： 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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公开(公告)号：US20150131189A1
公开(公告)日：2015-05-14
申请号：US14381570
申请日：2012-03-01
CPC分类号： H02H3/10 , H01H9/542 , H01H9/548 , H01H33/596 , H01H2009/543 , H01H2009/544 , H02H3/025 , H02H3/087 , H02H9/02 , H02H9/044 , H03K17/08116
摘要： A circuit breaker for high voltage direct current (HVDC) power transmission includes a module with a pair of terminals for connection to an electrical network, and four of conduction paths. Each first conduction path includes a mechanical switch connected in series with at least one first semiconductor switch to selectively allow current to flow between the first and second terminals through the first conduction path in a first mode of operation or commutate current from the first conduction path to the second conduction path in a second mode of operation. The second conduction path also has a semiconductor switch to selectively allow current to flow between the terminals through the second conduction path or commutate current from the second conduction path to the third conduction path in the second mode of operation. The third conduction path has a snubber circuit with an energy storage device to control a rate of change of voltage across the mechanical switch and oppose current flowing between the first and second terminals in the second mode of operation. The fourth conduction path has a resistive element to absorb and dissipate energy in the second mode of operation and divert charging current from the first and second terminals away from the energy storage device to limit a maximum voltage across the pair of terminals.
摘要翻译： 用于高压直流（HVDC）电力传输的断路器包括具有用于连接到电网的一对端子的模块和四个导电路径。 每个第一导电路径包括与至少一个第一半导体开关串联连接的机械开关，以选择性地允许电流在第一操作模式中通过第一导电路径在第一和第二端子之间流动，或者从第一导电路径到 第二传导路径处于第二操作模式。 第二导电路径还具有半导体开关，以选择性地允许电流在第二操作模式中通过第二导电路径在端子之间流动或从第二导电路径到第三导电路径的整流电流。 第三导电路径具有缓冲电路，其具有能量存储装置，用于控制横跨机械开关的电压变化率，并且在第二操作模式下与第一和第二端子之间的电流相反。 第四导电路径具有电阻元件，以在第二操作模式中吸收和耗散能量，并将来自第一和第二端子的充电电流从能量存储装置转移以限制该对端子两端的最大电压。
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公开(公告)号：US20130208521A1
公开(公告)日：2013-08-15
申请号：US13639844
申请日：2010-04-08
IPC分类号： H02M7/06
CPC分类号： H02M7/06 , H02J3/36 , H02M1/12 , H02M1/15 , H02M7/7575 , H02M7/797 , H02M2007/4835 , Y02E60/60
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20130208514A1
公开(公告)日：2013-08-15
申请号：US13805333
申请日：2010-06-18
CPC分类号： H02M1/4208 , G05F1/70 , H02J3/36 , H02M7/04 , H02M7/483 , H02M2007/4835 , Y02E60/60 , Y10T307/50
摘要： 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.
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公开(公告)号：US09065299B2
公开(公告)日：2015-06-23
申请号：US13805333
申请日：2010-06-18
CPC分类号： H02M1/4208 , G05F1/70 , H02J3/36 , H02M7/04 , H02M7/483 , H02M2007/4835 , Y02E60/60 , Y10T307/50
摘要： 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.
摘要翻译： 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。
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9.发明授权公开(公告)号：US08934268B2
公开(公告)日：2015-01-13
申请号：US13639844
申请日：2010-04-08
IPC分类号： H02J3/36 , H02J1/10 , G05F5/00 , H02M7/06 , H02M7/757 , H02M7/797 , H02M1/12 , H02M1/15 , H02M7/483
CPC分类号： H02M7/06 , H02J3/36 , H02M1/12 , H02M1/15 , H02M7/7575 , H02M7/797 , H02M2007/4835 , Y02E60/60
摘要： A power electronic converter for use in high voltage direct current power transmission and reactive power compensation which includes at least one converter limb including first and second DC terminals for connection in use to a DC network. The or each converter limb includes 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 includes 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 includes at least one auxiliary converter including a plurality of self-commutated switching elements. 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.
摘要翻译： 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直流网络中使用的连接的第一和第二直流端子。 该或每个转换器支路包括连接在第一和第二DC端子之间的至少一个第一转换器模块和至少一个第二转换器模块。 该或每个第一转换器块包括多个线路换向晶闸管和用于在AC网络中使用的连接的至少一个第一AC端子。 该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。 自换向开关元件在使用中是可控制的，用于注入电压以改变呈现给转换器支路的DC侧的DC电压和/或修改电力电子转换器的AC侧的AC电压和AC电流。
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公开(公告)号：US09954358B2
公开(公告)日：2018-04-24
申请号：US14378319
申请日：2012-03-01
CPC分类号： H02J1/02 , H02H3/16 , H02H7/268 , H02H9/041 , H02J3/36 , H02J4/00 , H02J2003/365 , H02M1/32 , H02M2007/4835 , Y02E60/60 , Y10T307/445
摘要： 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.
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