PROTECTION METHODS AND SWITCHES IN UNINTERRUPTIBLE POWER SUPPLY SYSTEMS
    13.
    发明申请
    PROTECTION METHODS AND SWITCHES IN UNINTERRUPTIBLE POWER SUPPLY SYSTEMS 审中-公开
    不间断电源系统中的保护方法和开关

    公开(公告)号:US20160118847A1

    公开(公告)日:2016-04-28

    申请号:US14823233

    申请日:2015-08-11

    CPC classification number: H02J9/061 H02J3/38 H02J9/062 H02M1/34

    Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), a ring bus, a plurality of chokes, each choke of the plurality of chokes electrically coupling an associated UPS of the plurality of UPSs to the ring bus, and at least one switch electrically coupled between at least one UPS of the plurality of UPSs and the ring bus, the at least one switch having an opening time of less than 10 milliseconds.

    Abstract translation: 提供了一个系统。 该系统包括多个不间断电源(UPS),环形总线,多个扼流圈,多个扼流圈的每个扼流圈将多个UPS中的相关UPS电气耦合到环形总线,以及至少一个电气开关 耦合在所述多个UPS中的至少一个UPS和所述环形总线之间,所述至少一个开关具有小于10毫秒的打开时间。

    REDUNDANT UNINTERRUPTIBLE POWER SUPPLY SYSTEMS
    14.
    发明申请
    REDUNDANT UNINTERRUPTIBLE POWER SUPPLY SYSTEMS 有权
    冗余不间断电源系统

    公开(公告)号:US20150263567A1

    公开(公告)日:2015-09-17

    申请号:US14306791

    申请日:2014-06-17

    Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs. The controller is configured to calculate an output voltage frequency for each UPS of the plurality of UPSs, and control operation of each UPS based on the respective calculated output voltage frequencies.

    Abstract translation: 提供了一个系统。 该系统包括多个不间断电源(UPS),环形总线,电耦合到多个UPS和环形总线的至少一个负载,以及通信地耦合到多个UPS的控制器。 控制器被配置为计算多个UPS中的每个UPS的输出电压频率,并且基于各个计算的输出电压频率来控制每个UPS的操作。

    REDUNDANT UNINTERRUPTIBLE POWER SUPPLY SYSTEMS
    15.
    发明申请
    REDUNDANT UNINTERRUPTIBLE POWER SUPPLY SYSTEMS 有权
    冗余不间断电源系统

    公开(公告)号:US20150263566A1

    公开(公告)日:2015-09-17

    申请号:US14306641

    申请日:2014-06-17

    Abstract: A system is provided. The system includes a utility, a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs, the controller configured to determine a common reference angle while the utility is disconnected from at least one UPS of the plurality of UPSs, calculate a phase angle for each UPS of the plurality of UPSs, wherein the phase angle for each UPS is calculated relative to the common reference angle, and control operation of each UPS based on the respective calculated phase angles.

    Abstract translation: 提供了一个系统。 该系统包括公用事业,多个不间断电源(UPS),环形总线,至少一个负载电耦合到多个UPS和环形总线的负载,以及控制器,其通信地耦合到多个UPS,所述控制器被配置 以在公用事业与多个UPS的至少一个UPS断开连接时确定公共参考角度,计算多个UPS中的每个UPS的相位角,其中每个UPS的相位角相对于公共参考角度被计算 并根据相应的计算出的相位角控制各个UPS的运行。

    SYSTEM AND METHOD FOR BALANCING MULTILEVEL POWER CONVERTERS
    16.
    发明申请
    SYSTEM AND METHOD FOR BALANCING MULTILEVEL POWER CONVERTERS 审中-公开
    用于平衡多功率转换器的系统和方法

    公开(公告)号:US20150131349A1

    公开(公告)日:2015-05-14

    申请号:US14077309

    申请日:2013-11-12

    Abstract: A system including a multi-level power converter is provided. The system also includes a plurality of DC link capacitors and a balancing circuit coupled to the multi-level power converter. The balancing circuit further includes two sets of interface branches. Each set includes a plurality of interface branches and a plurality of switching elements. The balancing circuit also includes a battery coupled to one or more inductors across the two sets of interface branches and a controller for controlling switching operations of the plurality of switching elements for modifying a voltage of the battery to balance voltages of the plurality of DC link capacitors.

    Abstract translation: 提供了一种包括多级功率转换器的系统。 该系统还包括多个DC链路电容器和耦合到多电平功率转换器的平衡电路。 平衡电路还包括两组接口分支。 每组包括多个接口分支和多个开关元件。 平衡电路还包括耦合到横跨两组接口分支的一个或多个电感器的电池和用于控制多个开关元件的开关操作的控制器,用于修改电池的电压以平衡多个DC链路电容器的电压 。

    DFIG-based UPS systems and methods of control

    公开(公告)号:US10008857B2

    公开(公告)日:2018-06-26

    申请号:US15066133

    申请日:2016-03-10

    Abstract: An uninterruptable power supply (UPS) system for providing power to a load coupled to a utility power source is provided. The UPS system includes a doubly-fed induction generator (DFIG), a rechargeable energy storage system, a first inverter, and a controller in communication with the DFIG and the first inverter. The DFIG includes a stator and a rotor coupled to the load. The stator and rotor are magnetically coupled together. The DFIG generates an auxiliary power output. The first inverter is coupled between the rotor and the rechargeable energy storage system. The controller detects a power disturbance associated with the utility power source and controls the first inverter to provide an excitation input to the rotor in response to the power disturbance. The DFIG provides the auxiliary power output to the load based on the excitation input.

    SYSTEMS AND METHODS FOR HYBRID VOLTAGE AND CURRENT CONTROL IN STATIC UPS SYSTEMS
    20.
    发明申请
    SYSTEMS AND METHODS FOR HYBRID VOLTAGE AND CURRENT CONTROL IN STATIC UPS SYSTEMS 审中-公开
    静态UPS系统中混合电压和电流控制的系统和方法

    公开(公告)号:US20160036215A1

    公开(公告)日:2016-02-04

    申请号:US14568632

    申请日:2014-12-12

    CPC classification number: H02H9/02 H02J9/062 H02M1/32

    Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), each UPS of the plurality of UPSs including an inverter, a ring bus, and at least one controller communicatively coupled to the plurality of UPSs, the at least one controller configured to determine when a bridge current in at least one UPS of the plurality of UPSs reaches a predetermined bridge current limit, and modify, in response to the determination, a capacitor voltage in the inverter of the at least one UPS to reduce a DC fault current component of a load current in the inverter.

    Abstract translation: 提供了一个系统。 该系统包括多个不间断电源(UPS),多个UPS中的每个UPS包括逆变器,环形总线以及通信地耦合到多个UPS的至少一个控制器,所述至少一个控制器被配置为确定何时 所述多个UPS中的至少一个UPS中的桥电流达到预定的电桥电流限制,并且响应于所述确定修改所述至少一个UPS的逆变器中的电容器电压,以减少所述至少一个UPS的DC故障电流分量 逆变器中的负载电流。

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