Power system based on current source

    公开(公告)号:US10797592B2

    公开(公告)日:2020-10-06

    申请号:US16004702

    申请日:2018-06-11

    申请人: Raytheon Company

    摘要: A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.

    Unmanned Underwater Vehicle
    2.
    发明申请
    Unmanned Underwater Vehicle 有权
    无人水下车

    公开(公告)号:US20140213126A1

    公开(公告)日:2014-07-31

    申请号:US13667505

    申请日:2012-11-02

    申请人: Raytheon Company

    IPC分类号: B63G8/08 B63G8/00

    CPC分类号: B63G8/08 B63C11/42 B63G8/001

    摘要: An unmanned underwater vehicle (UUV) is disclosed. The UUV includes a body and a propulsion system for propelling and orienting the UUV. The propulsion system has an inlet formed in the body that facilitates fluid being drawn into the UUV from outside the body. The propulsion system also has a duct in fluid communication with the inlet. The duct is adapted to direct the fluid along a flow path. The propulsion system further includes a pump operable with the duct to increase the velocity of the fluid. In addition, the propulsion system includes a nozzle in fluid communication with the duct to receive the fluid at the increased velocity. The nozzle is supported about a side of the body and adapted to moveably redirect fluid out of the UUV. The propulsion system provides multi-axis control of the UUV.

    摘要翻译: 公开了一种无人水下航行器(UUV)。 UUV包括用于推动和定向UUV的车体和推进系统。 推进系统具有在体内形成的入口,其有利于流体从身体外部吸入UUV。 推进系统还具有与入口流体连通的管道。 导管适于沿流动路径引导流体。 推进系统还包括可与管道一起操作的泵,以增加流体的速度。 此外,推进系统包括与管道流体连通以以增加的速度接收流体的喷嘴。 喷嘴被支撑在身体的一侧并且适于将流体可移动地重新引导出UUV。 推进系统提供了UUV的多轴控制。

    Power system based on current source

    公开(公告)号:US09997997B2

    公开(公告)日:2018-06-12

    申请号:US14579921

    申请日:2014-12-22

    申请人: Raytheon Company

    摘要: A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.

    POWER SYSTEM BASED ON CURRENT SOURCE
    8.
    发明申请

    公开(公告)号:US20180294715A1

    公开(公告)日:2018-10-11

    申请号:US16004702

    申请日:2018-06-11

    申请人: Raytheon Company

    摘要: A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.

    Large scale sub-sea high voltage distributed DC power infrastructure using series adaptive clamping

    公开(公告)号:US10120402B2

    公开(公告)日:2018-11-06

    申请号:US15182574

    申请日:2016-06-14

    申请人: Raytheon Company

    IPC分类号: G05F1/10 G05F1/66 H02J1/04

    摘要: A system includes at least one pair of series adaptive clamps (SACs). Each SAC is configured to connect to a single conductor that is configured to conduct a constant current between shore-side power sources on opposite ends of the single conductor. Each SAC is configured to clamp a specified amount of power from the single conductor. Each SAC is configured to connect to one end of two ends of a power transfer bus, wherein the other end of the power transfer bus is connected to another SAC of a same pair of SACs. Each SAC is configured to provide a constant voltage to the power transfer bus at the constant current in order to supply at least some of the specified amount of power to a load connected to the power transfer bus.

    POWER SYSTEM BASED ON CURRENT SOURCE
    10.
    发明申请
    POWER SYSTEM BASED ON CURRENT SOURCE 有权
    基于电流源的电力系统

    公开(公告)号:US20160181802A1

    公开(公告)日:2016-06-23

    申请号:US14579921

    申请日:2014-12-22

    申请人: Raytheon Company

    摘要: A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.

    摘要翻译: 调节电流馈电系统采用串联连接的功率分支单元。 每个功率分支单元包括在用于调节电流的电流路径内彼此串联连接的多个并联冗余转换器组。 每个并联冗余转换器组包括至少两个彼此并联连接的直流(DC)/ DC转换器,每个共享电力负载。 与每个DC / DC转换器串联连接的保护装置在相应的DC / DC转换器短路时与相应的DC / DC转换器断开,DC / DC转换器的短路随着其余的DC / DC转换器接收到更多的功率负载 。 在并联冗余转换器组中的所有DC / DC转换器并联连接的有源钳位器当其中一个DC / DC转换器在短路状态下故障时,临时吸收一部分稳压电流。 并联冗余转换器组转换器中的所有DC / DC转换器的有源钳位分流调节电流处于短路状态。