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    • 8. 发明申请
    • SYSTEM AND METHOD FOR DIRECT CURRENT POWER TRANSMISSION
    • 用于直流电力传输的系统和方法
    • WO2015148977A1
    • 2015-10-01
    • PCT/US2015/023094
    • 2015-03-27
    • GENERAL ELECTRIC COMPANY
    • SHEN, JieYUAN, ZhihuiSIHLER, Christof, MartinSCHROEDER, StefanCHAN, Mark, AaronXU, Fei
    • H02J3/36H02J3/38H02M7/493
    • H02J3/36H02J3/38H02M7/04H02M7/44Y02E60/60
    • A modular substation (10) for subsea applications includes a plurality of modular DC/AC converters (32) configured for converting DC electrical power transmitted along a DC transmission link (24) into AC electrical power for supplying to a plurality of subsea loads (56). The plurality of modular DC/AC converters (32) is configured to couple in series to the DC transmission link (24) and couple in parallel to an AC distribution network (52). At least a first modular DC/AC converter (32) is configured to be selectively electrically and mechanically disconnected from the DC transmission link (24) and the AC distribution network (52) to facilitate maintenance of the first modular DC/AC converters (32) while the AC distribution network (52) continues to supply AC electrical power to at least one of the plurality of subsea loads (56). The modular substation (10) also comprises protection and bypass circuits (26) intended to isolate faulty DC/AC converters (32) and to facilitate safe maintenance and repair.
    • 用于海底应用的模块化变电站(10)包括多个模块化DC / AC转换器(32),其被配置用于将沿着直流传输链路(24)传输的直流电力转换为交流电力,以供应给多个海底负载(56 )。 多个模块化DC / AC转换器(32)被配置为串联耦合到DC传输链路(24)并且并联耦合到AC分配网络(52)。 至少第一模块化DC / AC转换器(32)被配置为与DC传输链路(24)和AC分配网络(52)选择性地电气和机械断开,以便于维护第一模块化DC / AC转换器(32 ),而交流配电网络(52)继续向多个海底负载(56)中的至少一个提供交​​流电力。 模块化变电站(10)还包括用于隔离故障的DC / AC转换器(32)的保护和旁路电路(26),并且便于安全的维护和修理。
    • 10. 发明申请
    • POWER SYSTEM FOR OFFSHORE APPLICATIONS
    • 海上应用电力系统
    • WO2017083121A1
    • 2017-05-18
    • PCT/US2016/059466
    • 2016-10-28
    • GENERAL ELECTRIC COMPANY
    • PAN, YanBUTCHER, Martin, SamuelDONG, DongINGLES, Martin, RichardSIHLER, Christof, MartinPANOSYAN, Ara
    • H02J3/36H02J5/00
    • H02J3/386H02J3/36H02J5/00H02J11/00H02M3/04H02M7/04Y02E60/60
    • A power system for offshore application includes a plurality of power circuits. Each of the power circuit includes an alternating current (AC) bus which supplies power to an auxiliary load and is connected to a generator. The power circuit further includes a first direct current (DC) bus having a first DC voltage supplying power to a first load and a second DC bus having a second DC voltage supplying power to a second load. The power circuit also includes a first DC to DC converter coupled between the first DC bus and the second DC bus, wherein the first DC to DC converter is configured for bidirectional power flow and an AC to DC converter coupled between the AC bus and the first DC bus. The first DC bus of at least one power circuit is coupled to the second DC bus of at least another power circuit with a second DC to DC converter. The system also includes a controller configured to control the operation of the first DC to DC converter, second DC to DC converter and the AC to DC converter for regulating the first and second DC voltages. The controller is further configured to provide power to the second DC bus from the at least one AC to DC converter during a first operating state and from the first DC to DC converter during a second operating state.
    • 用于离岸应用的电力系统包括多个电力电路。 每个电源电路包括向辅助负载供电并连接到发电机的交流(AC)总线。 电源电路还包括具有向第一负载供电的第一DC电压的第一直流(DC)总线和具有向第二负载供电的第二DC电压的第二DC总线。 功率电路还包括耦合在第一DC总线和第二DC总线之间的第一DC-DC转换器,其中第一DC-DC转换器被配置用于双向功率流动,以及AC-DC转换器耦合在AC总线和第一 直流母线。 至少一个功率电路的第一DC总线通过第二DC-DC转换器耦合到至少另一个功率电路的第二DC总线。 该系统还包括控制器,该控制器被配置为控制第一DC到DC转换器,第二DC到DC转换器和AC到DC转换器的操作以调节第一和第二DC电压。 所述控制器进一步被配置为在第一操作状态期间从所述至少一个AC到DC转换器以及在第二操作状态期间从第一DC到DC转换器向第二DC总线提供电力。