DC to DC converter assembly
    1.
    发明授权
    DC to DC converter assembly 有权
    直流到直流转换器总成

    公开(公告)号:US09479061B2

    公开(公告)日:2016-10-25

    申请号:US14236628

    申请日:2011-08-24

    Abstract: A DC-to-DC converter assembly includes an inverter having first and second terminals connectable to a power transmission network. The inverter has a modular multilevel converter including a first inverter limb extending between the first and second terminals with first and second inverter limb portions separated by a third terminal. Each inverter limb portion includes at least one rationalized module having first and second sets of series-connected current flow control elements connected in parallel with an energy storage device. The current flow control elements include an active switching element directing current through the energy storage device and a passive current check element limiting current flow to one direction. The current flow control elements and energy storage device provide a voltage source to synthesize an AC voltage at the third terminal. A rectifier is electrically connected to the third terminal and connectable to a second power transmission network.

    Abstract translation: DC-DC转换器组件包括具有可连接到输电网络的第一和第二端子的逆变器。 逆变器具有模块化多电平转换器,其包括在第一和第二端子之间延伸的第一反相器臂,第一和第二反相器分支部分由第三端子分开。 每个逆变器分支部分包括至少一个具有与能量存储装置并联连接的第一组和第二组串联电流流量控制元件的合理化模块。 电流控制元件包括引导电流通过能量存储装置的有源开关元件和限制向一个方向的电流的无源电流检查元件。 电流控制元件和能量存储装置提供电压源以在第三端合成交流电压。 整流器电连接到第三端子并且可连接到第二电力传输网络。

    HVDC converter including fullbridge cells for handling a DC side short circuit
    2.
    发明授权
    HVDC converter including fullbridge cells for handling a DC side short circuit 有权
    HVDC转换器包括用于处理DC侧短路的全桥单元

    公开(公告)号:US08867244B2

    公开(公告)日:2014-10-21

    申请号:US13813414

    申请日:2010-07-30

    Abstract: A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises three converter limbs, each converter limb including first and second DC terminals for connection in use to a DC network and an AC terminal for connection in use to a respective phase of a three-phase AC network, each converter limb defining first and second limb portions being connected in series between the respective AC terminal and a respective one of the first and second DC terminals, each limb portion including at least one switching element being controllable in use to facilitate power conversion between the AC and DC networks, the power electronic converter further including a plurality of auxiliary units, each auxiliary unit being operably associated with the respective phase of the AC network, each auxiliary unit including at least one module including a voltage source, the limb portions being controllable in use to define at least one three-phase static synchronous compensator including at least one of the plurality of auxiliary units in each branch of a star configuration, each of the first and/or second DC terminals defining the neutral point of the respective star configuration.

    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三个转换器分支,每个转换器分支包括用于连接到DC网络的第一和第二DC终端和用于连接到相应的AC终端的AC终端 三相AC网络的相位,每个转换器限定第一和第二分支部分串联连接在相应AC端子与第一和第二DC端子中的相应一个之间,每个分支部分包括至少一个开关元件,其可控制 在用于促进​​AC和DC网络之间的电力转换的情况下,电力电子转换器还包括多个辅助单元,每个辅助单元可操作地与AC网络的相位相关联,每个辅助单元包括至少一个模块, 电压源,肢体部分在使用中是可控的,以限定至少一个三相s 同步补偿器包括星形结构的每个分支中的多个辅助单元中的至少一个,第一和/或第二直流端子中的每一个限定相应的星形结构的中性点。

    Hybrid AC/DC Converter For HVDC Applications
    3.
    发明申请
    Hybrid AC/DC Converter For HVDC Applications 有权
    用于HVDC应用的混合AC / DC转换器

    公开(公告)号:US20140293668A1

    公开(公告)日:2014-10-02

    申请号:US14359088

    申请日:2011-11-17

    Abstract: A power electronic converter, for connecting AC and DC networks and transferring power therebetween, comprises: first and second DC terminals for connection in use to a DC network; at least one primary converter limb extending between the first and second DC terminals and having first and second primary limb portions separated by a primary AC terminal for connection in use to a respective phase of a multi-phase AC network, at least one of the first and second primary limb portions including at least one primary active switching module to selectively allow current to flow through the corresponding primary converter limb in a first direction from the corresponding primary AC terminal to the DC terminals and in a second direction from the DC terminals to the corresponding primary AC terminal; and at least one secondary converter limb extending between the first and second DC terminals and having first and second secondary limb portions separated by a secondary AC terminal for connection in use to a further respective phase of the said multi-phase AC network, each of the first and second secondary limb portions including at least one passive current check element to limit current flow through the corresponding secondary converter limb to a single direction from the corresponding secondary AC terminal to the DC terminals.

    Abstract translation: 一种用于连接AC和DC网络并在其间传递电力的电力电子转换器包括:用于连接到DC网络的第一和第二DC终端; 至少一个主转换器分支,其在所述第一和第二DC终端之间延伸并且具有由主AC终端隔开的第一和第二主分支部分,用于连接到多相AC网络的相应相位,所述第一和第二主分支部分中的至少一个 以及第二主要肢体部分,其包括至少一个主要有源切换模块,用于选择性地允许电流沿着第一方向从相应的主AC端子到DC端子以及从DC端子到第二方向的第二方向流过对应的主转换器臂 相应的主交流电源; 以及至少一个次级转换器分支,其在所述第一和第二DC终端之间延伸并且具有被辅助AC端子分隔开的第一和第二辅助分支部分,用于连接到所述多相AC网络的另外的相位, 第一和第二副肢部分包括至少一个无源电流检查元件,以将来自相应次级转换器支路的电流限制到从相应的次级AC端子到DC端子的单个方向。

    DC TO DC CONVERTER ASSEMBLY
    4.
    发明申请
    DC TO DC CONVERTER ASSEMBLY 有权
    直流到直流转换器总成

    公开(公告)号:US20140293656A1

    公开(公告)日:2014-10-02

    申请号:US14236627

    申请日:2011-08-01

    Abstract: A DC to DC converter assembly, for connecting first and second high voltage DC power transmission networks, comprising first and second modular multilevel converters, each converter including a first converter limb having first and second limb portions, each limb portion including a least one module switchable to selectively provide a voltage source and thereby vary the magnitude ratio of a DC voltage (V1, V2) across the first and second terminals of a respective converter and an AC voltage (VAC) at the third terminal of the corresponding converter, the DC to DC converter assembly further including a first link electrically connecting the third terminal of one converter, with the third terminal of the other converter, and at least one converter further including a controller configured to switch the first and second limb portions in the first converter limb of the said converter into simultaneous conduction to divert a portion (IDiV1) of current flowing within the said converter away from the first link.

    Abstract translation: 一种DC-DC转换器组件,用于连接第一和第二高压DC电力传输网络,包括第一和第二模块化多电平转换器,每个转换器包括具有第一和第二分支部分的第一转换器分支,每个分支部分包括至少一个可切换模块 选择性地提供电压源,从而改变跨过相应转换器的第一和第二端子的直流电压(V1,V2)和相应转换器的第三端口处的交流电压(VAC)的幅度比,直流到 DC转换器组件还包括将一个转换器的第三端子与另一个转换器的第三端子电连接的第一连接器以及至少一个转换器,该至少一个转换器还包括控制器,该控制器被配置为将第一转换器臂中的第一和第二臂部分切换到 所述转换器同时导通以将在所述转换器内流动的电流的一部分(IDiV1)转移掉f 第一个链接。

    Electrical machine
    5.
    发明授权
    Electrical machine 有权
    电机

    公开(公告)号:US07830105B2

    公开(公告)日:2010-11-09

    申请号:US12176663

    申请日:2008-07-21

    CPC classification number: H02P25/08 F01D15/10 F02C7/275 H02P6/185 H02P2203/01

    Abstract: Embedding electrical machines in gas turbine engines has particular advantages by avoiding the need to provide mechanical connections. However, electrical machines such as switched reluctance electrical machines require relatively large electrical capacitors to accommodate and filter voltage variations in the phases of the electrical machine. Generally, the electrical machine will have a motoring period or generating period with a spacer period between. By injecting electrical current as electrical power in the spacer period, there is limited effect upon net torque within the electrical machine or electrical power generation. However, such stored electrical power in an inductive winding element of the electrical machine augments power pulses provided by a power source incorporating an electrical capacitor. In such circumstances, a smaller sized electrical capacitor can be used.

    Abstract translation: 将电机嵌入燃气轮机中具有避免提供机械连接的需要的特别优点。 然而,诸如开关磁阻电机的电机需要相对较大的电容器来适应和滤除电机的相位中的电压变化。 一般来说,电机将具有驾驶期或发电期间间隔期间。 通过在隔离周期期间注入电流作为电力,对电机或发电中的电力转矩有有限的影响。 然而,电机的电感式绕组元件中的这种存储的电力增加了由并入有电容器的电源提供的功率脉冲。 在这种情况下,可以使用较小尺寸的电容器。

    Power electronic converter
    6.
    发明授权

    公开(公告)号:US09344010B2

    公开(公告)日:2016-05-17

    申请号:US14385967

    申请日:2013-03-20

    CPC classification number: H02M7/797 H02M7/219 H02M2007/4835 Y02E60/60

    Abstract: A power electronic converter (30), for connecting AC and DC networks (46,44) and transferring power therebetween, comprises: first and second DC terminals (32,34) defining a DC link for connection to a DC network (44); wherein, in use, the DC link has a reversible DC link voltage applied thereacross; at least one converter limb (36) extending between the first and second DC terminals (32,34) and having first and second limb portions (38,40) separated by an AC terminal (42) for connection to an AC network (46), each limb portion (38,40) including at least one rationalized module (52) having first and second sets of series-connected current flow control elements (54) connected in parallel with at least one energy storage device (56), each set of current flow control elements (54) including a primary active switching element to selectively direct current through the energy storage device (56) and a primary passive current check element to limit current flow through the rationalized module (52) to a single direction, the current flow control elements (54) and the or each energy storage device (56) combining to selectively provide a voltage source to synthesize an AC voltage at the AC terminal (42); and a first controller (60) to selectively switch the or each rationalized module (52) in each limb portion (38,40) to control the configuration of the AC voltage at the corresponding AC terminal (42) so as to transfer power from the AC network (46) to the DC network (44) in an AC to DC power transfer mode and to transfer power from the DC network (44) to the AC network (46) in a DC to AC power transfer mode, wherein each limb portion (38,40) includes: one or more secondary passive current check elements (48) to limit current flow through the corresponding limb portion (38,40) to a single direction between the corresponding AC and DC terminals (42,32,34), the or each secondary passive current check element (48) being connected in series with the or each rationalized module (52); or one or more secondary active switching elements that is connected in series with the or each rationalized module (52).

    POWER ELECTRONIC MODULE
    7.
    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
    8.
    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。

    CONVERTER WITH REACTIVE POWER COMPENSATION
    9.
    发明申请
    CONVERTER WITH REACTIVE POWER COMPENSATION 有权
    具有反应功率补偿的转换器

    公开(公告)号:US20120188803A1

    公开(公告)日:2012-07-26

    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
    10.
    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.

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