SYSTEMS AND METHODS FOR HYBRID VOLTAGE AND CURRENT CONTROL IN STATIC UPS SYSTEMS
    2.
    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。

    SYSTEMS AND METHODS FOR MANAGING POWER BACKFEED IN UNINTERRUPTIBLE POWER SUPPLY SYSTEMS
    3.
    发明申请
    SYSTEMS AND METHODS FOR MANAGING POWER BACKFEED IN UNINTERRUPTIBLE POWER SUPPLY SYSTEMS 有权
    用于在不间断电源系统中管理备用电源的系统和方法

    公开(公告)号:US20160020646A1

    公开(公告)日:2016-01-21

    申请号:US14592305

    申请日:2015-01-08

    CPC classification number: H02J9/061 H02J3/46 H02J9/062

    Abstract: A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), a ring bus, and at least one controller communicatively coupled to the plurality of UPSs, the at least one controller configured to calculate an output voltage frequency for each UPS of the plurality of UPSs, wherein the output voltage frequency for a UPS of the plurality of UPSs is calculated based at least on a derivative of an average active output power of the UPS, 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计算多个UPS中的每个UPS的输出电压频率 其中,所述多个UPS的UPS的输出电压频率至少基于所述UPS的平均有功输出功率的导数,以及基于所计算的各个输出电压频率来控制每个UPS的运行。

    SYSTEMS AND METHODS FOR EXPLOITING CURRENT CAPABILITY IN STATIC UPS
    5.
    发明申请
    SYSTEMS AND METHODS FOR EXPLOITING CURRENT CAPABILITY IN STATIC UPS 审中-公开
    在静态UPS中开发电流能力的系统和方法

    公开(公告)号:US20160036216A1

    公开(公告)日:2016-02-04

    申请号:US14568817

    申请日:2014-12-12

    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 control at least one bridge current in each UPS, the at least one bridge current controlled such that the inverter of each UPS operates in a partial current limiting regime between a full current limiting regime and a linear mode.

    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,环形总线和通信地耦合到多个UPS的至少一个控制器,所述至少一个控制器被配置为在 每个UPS中的至少一个桥电流,控制至少一个桥电流,使得每个UPS的逆变器在全电流限制状态和线性模式之间以部分电流限制状态工作。

    ISOLATED PARALLEL UPS SYSTEM WITH FAULT LOCATION DETECTION

    公开(公告)号:US20180076658A1

    公开(公告)日:2018-03-15

    申请号:US15263821

    申请日:2016-09-13

    Abstract: An uninterruptible power supply (UPS) system is provided. The UPS system includes a plurality of UPSs, a ring bus that electrically couples the UPSs together, a static switch coupled between an associated UPS of the UPSs and the ring bus, and a controller. The controller receives current data representative of an inverter current and a load current associated with the associated UPS. An output capacitor of the associated UPS is coupled to a node that conducts the inverter current and the load current. The controller further calculates a measured current based on the received current data, determines a voltage of said output capacitor, generates a derived current based on the determined voltage and a predetermined capacitance of said output capacitor, compares the measured current and the derived current to identify a fault location, and controls said static switch based on the identified fault location.

    UNINTERRUPTIBLE POWER SUPPLY AND METHOD OF OPERATION
    7.
    发明申请
    UNINTERRUPTIBLE POWER SUPPLY AND METHOD OF OPERATION 审中-公开
    不可逆电源和操作方法

    公开(公告)号:US20160013728A1

    公开(公告)日:2016-01-14

    申请号:US14327171

    申请日:2014-07-09

    Abstract: An uninterruptible power supply (UPS) is provided that includes a split direct current (DC) link having a first capacitor coupled between a positive DC link terminal and a first node, and a second capacitor coupled between the first node and a negative DC link terminal. The UPS also includes a rectifier coupled to an input of the split DC link and a controller coupled to the rectifier. The rectifier includes first, second, and third legs, wherein each leg is configured to convert a first alternating current (AC) voltage received from an AC source into a DC voltage to be provided to the split DC link, and a fourth leg configured to balance DC link voltages of the first and second capacitors. The controller is configured to maintain functionality of the rectifier during at least one of a partial utility power outage, a full utility outage, and a failure of at least one of the first, second, third, and fourth legs.

    Abstract translation: 提供了一种不间断电源(UPS),其包括具有耦合在正DC链路端子和第一节点之间的第一电容器的分离直流(DC)链路和耦合在第一节点和负DC链路终端之间的第二电容器 。 UPS还包括耦合到分离DC链路的输入端的整流器和耦合到整流器的控制器。 整流器包括第一,第二和第三支腿,其中每个支腿被配置为将从AC源接收的第一交流电压(AC)电压转换成要提供给分离DC链路的直流电压,以及第四支路,被配置为 平衡第一和第二电容器的直流链路电压。 控制器被配置为在部分公用电力停电,完全停电以及第一,第二,第三和第四支路中的至少一个的故障中的至少一个中保持整流器的功能。

    Systems and Methods for Providing Increased Fault Current Capability in Uninterruptible Power Supply Systems
    8.
    发明申请
    Systems and Methods for Providing Increased Fault Current Capability in Uninterruptible Power Supply Systems 有权
    在不间断电源系统中提供更高故障电流能力的系统和方法

    公开(公告)号:US20150263568A1

    公开(公告)日:2015-09-17

    申请号:US14640409

    申请日:2015-03-06

    CPC classification number: H02J9/061 H02J3/48 H02J9/062 Y10T307/615 Y10T307/62

    Abstract: A system is provided. The system includes a ring bus, at least one voltage source, and a plurality of uninterruptible power supplies (UPSs) electrically coupled between the at least one voltage source and the ring bus, wherein at least one UPS of the plurality of UPSs includes an input, an output, a rectifier having a rectifier input and a rectifier output, an inverter having an inverter input and an inverter output, wherein the rectifier output is electrically coupled to the inverter input, and a bypass switch electrically coupled between the rectifier input and the inverter output, the bypass switch configured to close in response to detection of a fault on the ring bus.

    Abstract translation: 提供了一个系统。 该系统包括环形总线,至少一个电压源和电耦合在所述至少一个电压源和环形总线之间的多个不间断电源(UPS),其中所述多个UPS中的至少一个UPS包括输入 输出,具有整流器输入和整流器输出的整流器,具有逆变器输入和反相器输出的逆变器,其中整流器输出电耦合到逆变器输入,以及旁路开关,其电耦合在整流器输入和 逆变器输出,旁路开关配置为关闭,以响应环路总线上的故障检测。

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