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    • 1. 发明授权
    • Vacuum switch assemblies
    • 真空开关组件
    • US09048039B2
    • 2015-06-02
    • US13466388
    • 2012-05-08
    • Allan David CraneMartin Samuel Butcher
    • Allan David CraneMartin Samuel Butcher
    • H02H3/20H01H9/54H01H33/59H01H33/66H01H33/02
    • H01H9/54H01H33/027H01H33/596H01H33/66H02H3/20
    • The present invention relates to a vacuum switch assembly for interrupting and isolating fault current. The vacuum switch assembly includes first and second dc lines that, in use, are electrically connected to the dc output terminals of a primary dc power source and a dc network. Each dc line includes at least one vacuum switch having contacts that are opened and closed under the control of a vacuum switch controller. A passive dc power supply unit is electrically connected to the first and second dc lines and includes a secondary dc power source that provides a substantially ripple-free sensing voltage. The vacuum switch controller is adapted to open the vacuum switch contacts when a fault condition (e.g. a fault current or other fault) or an operator request has been identified and when the current flowing between the vacuum switch contacts is below a chopping current associated with the vacuum switches.
    • 本发明涉及用于中断和隔离故障电流的真空开关组件。 真空开关组件包括第一和第二直流线路,其在使用中电连接到主直流电源和直流网络的直流输出端子。 每个直流线包括至少一个具有在真空开关控制器的控制下打开和关闭的触点的真空开关。 无源直流电源单元电连接到第一和第二直流线路,并且包括提供基本上无纹波感测电压的次级直流电源。 真空开关控制器适用于当故障状况(例如故障电流或其他故障)或操作者请求已被识别时以及当真空开关触点之间流动的电流低于与该真空开关触点相关联的斩波电流时打开真空开关触点 真空开关
    • 2. 发明申请
    • VACUUM SWITCH ASSEMBLIES
    • 真空开关总成
    • US20130301180A1
    • 2013-11-14
    • US13466388
    • 2012-05-08
    • Allan David CraneMartin Samuel Butcher
    • Allan David CraneMartin Samuel Butcher
    • H01H9/54
    • H01H9/54H01H33/027H01H33/596H01H33/66H02H3/20
    • The present invention relates to a vacuum switch assembly for interrupting and isolating fault current. The vacuum switch assembly includes first and second dc lines that, in use, are electrically connected to the dc output terminals of a primary dc power source and a dc network. Each dc line includes at least one vacuum switch having contacts that are opened and closed under the control of a vacuum switch controller. A passive dc power supply unit is electrically connected to the first and second dc lines and includes a secondary dc power source that provides a substantially ripple-free sensing voltage. The vacuum switch controller is adapted to open the vacuum switch contacts when a fault condition (e.g. a fault current or other fault) or an operator request has been identified and when the current flowing between the vacuum switch contacts is below a chopping current associated with the vacuum switches.
    • 本发明涉及用于中断和隔离故障电流的真空开关组件。 真空开关组件包括第一和第二直流线路,其在使用中电连接到主直流电源和直流网络的直流输出端子。 每个直流线包括至少一个具有在真空开关控制器的控制下打开和关闭的触点的真空开关。 无源直流电源单元电连接到第一和第二直流线路,并且包括提供基本上无纹波感测电压的次级直流电源。 真空开关控制器适用于当故障状态(例如故障电流或其他故障)或操作者请求已被识别时以及当真空开关触点之间流动的电流低于与该真空开关触点相关联的斩波电流时打开真空开关触点 真空开关
    • 3. 发明授权
    • Power distribution systems
    • 配电系统
    • US08680707B2
    • 2014-03-25
    • US12902180
    • 2010-10-12
    • Jonathan ChildsAllan David Crane
    • Jonathan ChildsAllan David Crane
    • B60L1/00B60L3/00H02G3/00
    • H02P25/22B60L1/00B60L11/08B60L2220/58B63H21/17B63H23/24H02J3/01Y02E40/40Y02T10/641Y02T10/642Y02T10/70Y02T10/7077
    • The present invention relates to power distribution systems (e.g. a marine power distribution and propulsion system) that include first and second ac distribution busbars. The first ac distribution busbar will typically be a medium voltage busbar for the propulsion drive systems and the second ac distribution busbar will typically be a low voltage for ships services. A 12-pulse rectifier has its ac terminals electrically connected to the first ac distribution busbar. A multiple output generator has first and second galvanically-isolated stator windings. The first stator winding provides a six-phase ac output and is connected to the first ac distribution busbar. The second stator winding provides a three-phase ac output and is connected to the second ac distribution busbar. The six-phase ac output is phase shifted relative to the three-phase ac output to reduce the problematic coupling of harmonic distortion between the first and second ac distribution busbars.
    • 本发明涉及包括第一和第二交流配电母线的配电系统(例如船用配电和推进系统)。 第一个交流配电母线通常是用于推进驱动系统的中压母线,而第二交流配电母线通常是用于船舶服务的低电压。 12脉冲整流器的交流端子电连接到第一交流配电母线。 多输出发生器具有第一和第二电隔离定子绕组。 第一定子绕组提供六相交流输出,并连接到第一交流配电母线。 第二定子绕组提供三相交流输出,并连接到第二交流配电母线。 六相交流输出相对于三相交流输出相移,以减少第一和第二交流配电母线之间的谐波失真的有问题的耦合。
    • 4. 发明授权
    • Electronic commutator circuits
    • 电子换向器电路
    • US08487566B2
    • 2013-07-16
    • US12965236
    • 2010-12-10
    • Allan David Crane
    • Allan David Crane
    • H02P6/14
    • H02P8/00H02P25/024H03K17/06H03K2217/0036
    • The present invention provides an electronic commutator circuit for use with a stator winding of an electrical machine. The stator winding of the electrical machine includes a number of coils linked by the same number of points of common coupling. The electronic commutator circuit comprising the same number of switching stages, each switching stage being connected between a respective one of the points of common coupling and first and second dc terminals. Each switching stage further includes a first reverse blocking semiconductor power device (such as a Reverse Blocking Gate Turn Off Thyristor (RB-GTO 1) capable of being turned on and off by gate control having its anode connected to the first dc terminal, and a second reverse blocking semiconductor power device (RB-GTO 2) capable of being turned on and off by gate control having its cathode connected to the second dc terminal.
    • 本发明提供一种与电机的定子绕组一起使用的电子换向器电路。 电机的定子绕组包括通过相同数量的公共耦合点连接的多个线圈。 电子换向器电路包括相同数量的开关级,每个开关级连接在公共耦合的相应一个点和第一和第二直流端子之间。 每个开关级还包括能够通过其阳极连接到第一直流端子的栅极控制而导通和关断的第一反向阻断半导体功率器件(诸如反向阻断门极关断晶闸管(RB-GTO1)),以及 第二反向阻挡半导体功率器件(RB-GTO 2),其能够通过其阴极连接到第二直流端子的栅极控制而导通和截止。
    • 5. 发明授权
    • Fuses
    • 保险丝
    • US08212646B2
    • 2012-07-03
    • US12478903
    • 2009-06-05
    • Allan David CraneChristopher John Dunne
    • Allan David CraneChristopher John Dunne
    • H01H85/42H01H85/38
    • H01H85/38H01H9/44H01H85/12H01H85/40H01H2085/383H01H2085/386
    • The present invention relates to a fuse assembly for rapid interruption of a prospective fault current. The fuse assembly includes a plurality of splitter plates. A plurality of foil elements extend between a pair of terminals and are physically supported by the splitter plates. A pair of parallel busbars are in series with the foil elements and generate a magnetic field that is substantially perpendicular to the current flowing in the foil elements. In the presence of a prospective fault current, the foil elements will melt and at arcing inception an electromagnetic force developed as a result of interaction between the magnetic field and the arc current will push the molten foil elements into the splitter plates. This increases the arc length and hence the arc voltage. At least the foil elements and the splitter plates are preferably located in flowing liquid dielectric such as MIDEL 7131, for example. The liquid dielectric flow may help to push the molten foil elements into the splitter plates and removes debris away from the arc site.
    • 本发明涉及一种用于快速中断预期故障电流的保险丝组件。 保险丝组件包括多个分离板。 多个箔元件在一对端子之间延伸并且由分离板物理地支撑。 一对平行母线与箔元件串联并且产生基本上垂直于在箔元件中流动的电流的磁场。 在存在预期故障电流的情况下,箔元件将熔化并且在起弧时由于磁场和电弧电流之间的相互作用而产生的电磁力将推动熔融箔元件进入分离板。 这增加了电弧长度,从而增加了电弧电压。 至少箔元件和分离板优选地位于诸如MIDEL 7131之类的流动液体电介质中。 液体电介质流动可以帮助将熔融箔片元件推入分离板,并将残留物从电弧位置移走。
    • 7. 发明授权
    • Power transmission and distribution systems
    • 输配电系统
    • US09030042B2
    • 2015-05-12
    • US13391930
    • 2010-09-06
    • Changjiang ZhanAllan David CraneAndrew James Bullock
    • Changjiang ZhanAllan David CraneAndrew James Bullock
    • H02J1/00H02J3/14H02J1/06H02J3/36H02M3/335H02M1/00
    • H02J1/06H02J3/36H02M3/3353H02M2001/0074Y02E60/60Y10T307/406
    • A power transmission and distribution system suitable for subsea electrical loads includes a primary dc transmission cable connected to an onshore AC/DC converter module that connects the onshore end of the cable to an ac supply network. The subsea end of the cable is connected to a primary subsea power distribution unit and includes a DC/DC converter module having a modular topology with a series of interconnected DC/DC converter units. The DC/DC converter module is connected between the cable and a primary dc distribution network. Secondary dc transmission cables and associated circuit breakers connect the primary subsea power distribution unit to secondary subsea power distribution units that are located near the subsea loads. Each secondary subsea power distribution unit includes a DC/DC converter module having a modular topology with a series of interconnected DC/DC converter units. Respective secondary dc distribution networks supply power to one or more subsea loads.
    • 适用于海底电力负载的输配电系统包括连接到陆上AC / DC转换器模块的主直流传输电缆,其将电缆的陆上端连接到交流供电网络。 电缆的海底端连接到主海底配电单元,并且包括具有模块拓扑的DC / DC转换器模块,其具有一系列互连的DC / DC转换器单元。 DC / DC转换器模块连接在电缆和主直流配电网络之间。 次级直流传输电缆和相关的断路器将主海底配电装置连接到位于海底负荷附近的次级海底配电装置。 每个次级海底配电单元包括具有模块化拓扑的DC / DC转换器模块,其具有一系列互连的DC / DC转换器单元。 相应的二次直流分配网络为一个或多个海底负载供电。
    • 9. 发明申请
    • EXCITER ASSEMBLIES
    • EXCITER组装
    • US20100134074A1
    • 2010-06-03
    • US11885085
    • 2006-02-13
    • Allan David Crane
    • Allan David Crane
    • H02P9/30H02K11/04
    • H02P6/005H02K19/26H02K55/04Y02E40/625
    • An exciter assembly for supplying a field current to the rotor windings of a superconducting synchronous machine includes a pulse transformer having a stationary primary winding and a secondary winding that is mounted to the rotor of the superconducting synchronous machine for rotation therewith. A switched mode power supply supplies a pulsed voltage to the primary winding of the pulse transformer. The pulsed voltage developed at the secondary winding of the pulse transformer is supplied to the rotor windings through a rectifier semiconductor device and a pair of transfer leads. The rotor windings and a flywheel semiconductor device are located inside a cryogenic chamber or cryostat. The flywheel semiconductor device is connected in parallel with the rotor windings and operates in unison with the rectifier semiconductor device in order to provide synchronous rectification of the switched mode power supply output. The switched mode power supply and both the primary and secondary windings of the pulse transformer are located outside the cryostat.
    • 用于向超导同步电机的转子绕组提供励磁电流的励磁机组件包括具有静止初级绕组的脉冲变压器和安装到超导同步电机的转子上以与其一起旋转的次级绕组。 开关模式电源向脉冲变压器的初级绕组提供脉冲电压。 在脉冲变压器的次级绕组上产生的脉冲电压通过整流器半导体器件和一对转移引线提供给转子绕组。 转子绕组和飞轮半导体器件位于低温室或低温恒温器内。 飞轮半导体器件与转子绕组并联连接,与整流器半导体器件一致地操作,以便提供开关模式电源输出的同步整流。 开关模式电源以及脉冲变压器的初级和次级绕组均位于低温恒温器外部。
    • 10. 发明申请
    • Voltage clamping and energy recovery circuits
    • 电压钳位和能量回收电路
    • US20090146596A1
    • 2009-06-11
    • US12315234
    • 2008-12-01
    • Allan David CraneDavid Nicholas Lee
    • Allan David CraneDavid Nicholas Lee
    • H02P27/00
    • H02P25/024
    • A circuit for use with a stator winding of a rotating or linear electrical machine, the stator winding having a number of coils linked by the same number of points of common coupling, includes an electronic commutator circuit having the same number of switching stages, each connected between a respective one of the points of common coupling and first and second main dc lines. Each switching stage includes first and second reverse blocking semiconductor power devices. A voltage clamping circuit includes the same number of clamping stages, each connected between a respective one of the points of common coupling and first and second auxiliary dc lines. Each clamping stage includes first and second diodes and first and second capacitors common to the various clamping stages. A dc to dc converter selectively discharges the first and second capacitors to the first and second main dc lines.
    • 一种与旋转或线性电机的定子绕组一起使用的电路,具有由相同数量的公共耦合点连接的多个线圈的定子绕组包括具有相同数量的开关级的电子换向器电路,每个连接 在公共耦合的相应一个点和第一和第二主直流线之间。 每个开关级包括第一和第二反向阻挡半导体功率器件。 钳位电路包括相同数目的钳位级,每个钳位级连接在公共耦合点和第一和第二辅助直流线路中的相应一个点之间。 每个钳位级包括第一和第二二极管以及各种钳位级共同的第一和第二电容器。 直流 - 直流转换器选择性地将第一和第二电容器放电到第一和第二主直流线路。