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    POWER DISTRIBUTION SYSTEM FOR OFF-SHORE NATURAL RESOURCE PLATFORMS
    3.
    发明申请
    POWER DISTRIBUTION SYSTEM FOR OFF-SHORE NATURAL RESOURCE PLATFORMS 有权
    用于远距离自然资源平台的功率分配系统

    公开(公告)号：US20170077699A1

    公开(公告)日：2017-03-16

    申请号：US14855569

    申请日：2015-09-16

    Applicant: ABB Technology Ltd.

    Inventor： Anil K. Kondabathini ,  Zhenyuan Wang ,  Jiuping Pan ,  Jiaqi Liang

    IPC: H02J1/10

    CPC classification number: H02J1/10 ,  H02J1/00 ,  H02J1/08 ,  H02J3/36 ,  H02J3/382 ,  H02J3/386 ,  H02J4/00 ,  H02J11/00 ,  Y02E10/763 ,  Y02E60/60 ,  Y02P80/14 ,  Y02P80/152

    Abstract: A power distribution system for off-shore natural resource platforms includes an off-shore medium voltage direct current (MVDC) power bus. The MVDC power bus includes multiple power bus segments, each of which may be connected to one or more other power bus segments via a corresponding circuit breaker. Each power bus segment may also be electrically coupled to an off-shore renewable energy source, such as a wind farm, and/or an off-shore drilling platform. The off-shore drilling platforms may include local power distribution systems electrically connected to a corresponding power bus segment via a circuit breaker to receive power from the MVDC power bus and supply power to local equipment of the off-shore drilling platform.

    Abstract translation: 离岸自然资源平台配电系统包括离岸中压直流（MVDC）电力总线。 MVDC电源总线包括多个电源总线段，每个段可以经由相应的断路器连接到一个或多个其他电力总线段。 每个电力总线段还可以电耦合到离岸可再生能源，例如风力发电场和/或离岸钻井平台。 离岸钻井平台可以包括经由断路器电连接到对应的电力总线段的本地配电系统，以从MVDC电力总线接收电力并向离岸钻井平台的本地设备供电。

    REDUCING PEAK FAULT OUTPUT CURRENT IN A DC POWER GENERATION SYSTEM
    4.
    发明申请
    REDUCING PEAK FAULT OUTPUT CURRENT IN A DC POWER GENERATION SYSTEM 有权
    降低直流发电系统中的峰值故障输出电流

    公开(公告)号：US20170054393A1

    公开(公告)日：2017-02-23

    申请号：US14828079

    申请日：2015-08-17

    Applicant: ABB Technology Ltd.

    Inventor： Wen Ouyang ,  Jiaqi Liang ,  Li Qi

    IPC: H02P9/00 ,  H02K11/04 ,  H02K3/16

    CPC classification number: H02P9/006 ,  H02K3/16 ,  H02K3/20 ,  H02K11/046 ,  H02K19/10 ,  H02M1/081 ,  H02M7/1557

    Abstract: Technologies for reducing peak fault output current in a DC power generation system include a generator having a reduced damper winding and a controller to control a rectifier array to generate a DC power output. In some embodiments, the generator may have no damper windings, may have damper windings including a reduced number of damper bars, and/or may have damper windings having separated end ring mounts for each damper bar. The controller is configured to control the rectifier array so as to reduce oscillations of the DC output that may be due to the reduced damper windings. To do so, the controller is configured to generate the control signal based on an oscillation component of the DC power output. For example, the controller may generate an oscillation correction signal based on the DC power output and adjust a firing angle set point of the rectifier array based on the oscillation correction signal.

    Abstract translation: 用于降低直流发电系统中的峰值故障输出电流的技术包括具有减小的阻尼绕组的发电机和用于控制整流器阵列以产生直流功率输出的控制器。 在一些实施例中，发电机可以没有阻尼器绕组，可以具有包括减少数量的阻尼杆的阻尼绕组，和/或可以具有用于每个阻尼器条的具有分离的端环安装件的阻尼绕组。 控制器被配置为控制整流器阵列，以便减少可能由减小的阻尼绕组引起的DC输出的振荡。 为此，控制器被配置为基于DC功率输出的振荡分量产生控制信号。 例如，控制器可以基于直流功率输出产生振荡校正信号，并且基于振荡校正信号调整整流器阵列的触发角设定点。

    SYSTEM FOR CONVERTING AC ELECTRICAL POWER TO DC ELECTRICAL POWER AND METHODS
    7.
    发明申请
    SYSTEM FOR CONVERTING AC ELECTRICAL POWER TO DC ELECTRICAL POWER AND METHODS 有权
    将交流电转换为直流电力系统和方法

    公开(公告)号：US20170054358A1

    公开(公告)日：2017-02-23

    申请号：US14828882

    申请日：2015-08-18

    Applicant: ABB Technology Ltd.

    Inventor： Jiaqi Liang ,  Li Qi

    IPC: H02M1/12 ,  H02M7/06

    CPC classification number: H02M1/12 ,  H02M1/4216 ,  H02M7/06 ,  H02M7/064 ,  H02M7/162 ,  H02M2007/4835 ,  Y02B70/126

    Abstract: A system includes a first DC rail and a second DC rail, and a rectifier coupled with the first and second DC rails. A multilevel converter is also coupled with the DC rails and operable to limit input current harmonics to the rectifier. Differences between voltage phase and current phase in AC electrical power supplied to the system are compensated via closed loop control of a voltage output of the multilevel converter.

    Abstract translation: 系统包括第一直流轨和第二直流轨，以及与第一和第二直流轨耦合的整流器。 多电平转换器还与DC电路耦合，可操作以将输入电流谐波限制到整流器。 通过多电平转换器的电压输出的闭环控制来补偿提供给系统的交流电力中的电压相位和电流相位之间的差异。

    RESONANT CONVERTERS INCLUDING FLYING CAPACITORS
    8.
    发明申请
    RESONANT CONVERTERS INCLUDING FLYING CAPACITORS 有权

    公开(公告)号：US20170338748A1

    公开(公告)日：2017-11-23

    申请号：US15159227

    申请日：2016-05-19

    Applicant: ABB Technology Ltd.

    Inventor： Jiaqi Liang ,  Harish Suryanarayana ,  Jukka-Pekka Kittila

    IPC: H02M7/537 ,  H02M3/335

    CPC classification number: H02M7/537 ,  H02M3/33569 ,  H02M7/483 ,  H02M2001/0058 ,  H02M2007/4815 ,  Y02B70/1441 ,  Y02B70/1491

    Abstract: Unique systems, methods, techniques and apparatuses of zero-voltage transition pulse width modulation resonant converters are disclosed. One exemplary embodiment is a zero-voltage transition PWM resonant converter comprising a DC bus, a first switching device, a second switching device, a resonant tank circuit, an auxiliary circuit having a flying capacitor and a plurality of auxiliary switching devices, and a controller. The controller is structured to control the first switching device, the second switching device, and the plurality of auxiliary switching devices to provide resonant operation of the tank circuit effective to provide a substantially zero voltage condition across the first switching device when turning the first switching device on or off and to provide a substantially zero voltage condition across the second switching device when turning the second switching device on or off.

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