公开(公告)号：US20160020646A1

公开(公告)日：2016-01-21

申请号：US14592305

申请日：2015-01-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Silvio Colombi ,  Andrea Mannuccini

IPC: H02J9/06

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。

公开(公告)号：US20150244210A1

公开(公告)日：2015-08-27

申请号：US14186159

申请日：2014-02-21

Applicant: General Electric Company

Inventor： YASHOMANI KOLHATKAR ,  Pradeep Vijayan ,  Silvio Colombi ,  Rajendra Naik ,  Viswanathan Kanakasabai

IPC: H02J9/06 ,  H02M5/42

CPC classification number: H02J9/062 ,  G06F1/26 ,  G06F1/30 ,  H02J3/08 ,  H02J2009/068 ,  H02M5/42 ,  Y10T307/344

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 a phase angle for each UPS of the plurality of UPSs, wherein the phase angle is calculated relative to a 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的每个UPS的相位角，其中相对于公共参考角计算相位角，并且基于相应计算的相位角控制每个UPS的操作。

公开(公告)号：US20150162782A1

公开(公告)日：2015-06-11

申请号：US14097574

申请日：2013-12-05

Applicant: General Electric Company

Inventor： Viswanathan Kanakasabai ,  Silvio Colombi ,  Rajendra Naik

IPC: H02J9/06 ,  H02J7/00

CPC classification number: H02J9/062 ,  H02J7/0013 ,  Y10T307/344

Abstract: A method and system for an uninterruptible power supply (UPS) are provided. The UPS includes a three-phase high power transformer, an active or passive-rectifier configured to generate and regulate a set of DC link voltages, and a set of cascaded inverters configured to generate an AC voltage using the DC link voltages. The UPS also includes a set of bi-directional battery converters configured to charge a bank of backup batteries when power is available from an AC mains source and discharge the bank of backup batteries to generate a three-phase AC voltage when the AC mains source voltage falls outside a predetermined range. The UPS further includes a bypass switch configured to electrically couple the AC mains source directly to a load when the UPS is in a bypass mode of operation and electrically couple the bank of backup batteries to the load through the set of bi-directional battery converters and the transformer.

Abstract translation: 提供了一种不间断电源（UPS）的方法和系统。 UPS包括三相大功率变压器，被配置为产生和调节一组DC链路电压的一个有源或无源整流器，以及一组级联逆变器，被配置为使用DC链路电压产生AC电压。 UPS还包括一组双向电池转换器，配置为从交流电源供电时为一组备用电池充电，并在备用电池组放电时产生三相交流电压，当交流电源电压 落在预定范围之外。 UPS还包括旁路开关，其配置成当UPS处于旁路操作模式时将AC电源直接电耦合到负载，并且通过该组双向电池转换器将备用电池组电耦合到负载，并且 变压器。

公开(公告)号：US20140012522A1

公开(公告)日：2014-01-09

申请号：US13738688

申请日：2013-01-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Silvio Colombi ,  Marco Crespan

IPC: G01R31/36 ,  G06F17/10

CPC classification number: G01R31/3624 ,  G01R31/028 ,  G01R31/42 ,  G06F17/10

Abstract: Systems, methods, and devices are provided for estimating when preventive maintenance of power capacitors is called for. Such a system may include, for example, a voltage sensor, a current sensor, and data processing circuitry. The voltage sensor may measure a voltage difference across a phase of a power capacitor. The current sensor may measure a current across the phase of the power capacitor. The data processing circuitry to determine a first instantaneous indication of a difference between a nominal capacitance of the power capacitor and an actual value of the power capacitor based at least in part on the measured first voltage difference and first current.

Abstract translation: 提供系统，方法和设备，用于估计何时需要维护电力电容器。 这样的系统可以包括例如电压传感器，电流传感器和数据处理电路。 电压传感器可以测量功率电容器两相的电压差。 电流传感器可以测量跨过功率电容器的相位的电流。 数据处理电路，用于至少部分地基于所测量的第一电压差和第一电流来确定功率电容器的标称电容和功率电容器的实际值之间的差的第一瞬时指示。

公开(公告)号：US09735616B2

公开(公告)日：2017-08-15

申请号：US14640409

申请日：2015-03-06

Applicant: General Electric Company

Inventor： Silvio Colombi ,  Andrea Mannuccini ,  Harry Bye Handlin

IPC: H02J9/00 ,  H02J9/06 ,  H02J3/48

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.

公开(公告)号：US09685820B2

公开(公告)日：2017-06-20

申请号：US14306641

申请日：2014-06-17

Applicant: General Electric Company

Inventor： Yashomani Kolhatkar ,  Pradeep Vijayan ,  Viswanathan Kanakasabai ,  Silvio Colombi ,  Rajendra Naik ,  Prashanth Manikumar Chennamsetty

IPC: H02J9/06 ,  H02J3/40 ,  H02J3/46 ,  G05F3/02 ,  H02J4/00

CPC classification number: H02J9/061 ,  G05F3/02 ,  H02J3/40 ,  H02J3/46 ,  H02J4/00 ,  H02J9/062 ,  Y10T307/344

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.

公开(公告)号：US20170155278A9

公开(公告)日：2017-06-01

申请号：US14186159

申请日：2014-02-21

Applicant: General Electric Company

Inventor： YASHOMANI KOLHATKAR ,  Pradeep Vijayan ,  Silvio Colombi ,  Rajendra Naik ,  Viswanathan Kanakasabai

IPC: H02J9/06 ,  H02M5/42

CPC classification number: H02J9/062 ,  G06F1/26 ,  G06F1/30 ,  H02J3/08 ,  H02J2009/068 ,  H02M5/42 ,  Y10T307/344

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 a phase angle for each UPS of the plurality of UPSs, wherein the phase angle is calculated relative to a common reference angle, and control operation of each UPS based on the respective calculated phase angles.

公开(公告)号：US09588182B2

公开(公告)日：2017-03-07

申请号：US13738688

申请日：2013-01-10

Applicant: General Electric Company

Inventor： Silvio Colombi ,  Marco Crespan

IPC: G01F22/02 ,  G01R31/36 ,  G01R31/02 ,  G06F17/10 ,  G01R31/42

CPC classification number: G01R31/3624 ,  G01R31/028 ,  G01R31/42 ,  G06F17/10

Abstract: Systems, methods, and devices are provided for estimating when preventive maintenance of power capacitors is called for. Such a system may include, for example, a voltage sensor, a current sensor, and data processing circuitry. The voltage sensor may measure a voltage difference across a phase of a power capacitor. The current sensor may measure a current across the phase of the power capacitor. The data processing circuitry to determine a first instantaneous indication of a difference between a nominal capacitance of the power capacitor and an actual value of the power capacitor based at least in part on the measured first voltage difference and first current.

Abstract translation: 提供系统，方法和设备，用于估计何时需要维护电力电容器。 这样的系统可以包括例如电压传感器，电流传感器和数据处理电路。 电压传感器可以测量功率电容器两相的电压差。 电流传感器可以测量跨过功率电容器的相位的电流。 数据处理电路，用于至少部分地基于所测量的第一电压差和第一电流来确定功率电容器的标称电容和功率电容器的实际值之间的差的第一瞬时指示。

公开(公告)号：US09479011B2

公开(公告)日：2016-10-25

申请号：US14097574

申请日：2013-12-05

Applicant: General Electric Company

Inventor： Viswanathan Kanakasabai ,  Silvio Colombi ,  Rajendra Naik

IPC: H02J7/00 ,  H02J9/06

CPC classification number: H02J9/062 ,  H02J7/0013 ,  Y10T307/344

Abstract: A method and system for an uninterruptible power supply (UPS) are provided. The UPS includes a three-phase high power transformer, an active or passive-rectifier configured to generate and regulate a set of DC link voltages, and a set of cascaded inverters configured to generate an AC voltage using the DC link voltages. The UPS also includes a set of bi-directional battery converters configured to charge a bank of backup batteries when power is available from an AC mains source and discharge the bank of backup batteries to generate a three-phase AC voltage when the AC mains source voltage falls outside a predetermined range. The UPS further includes a bypass switch configured to electrically couple the AC mains source directly to a load when the UPS is in a bypass mode of operation and electrically couple the bank of backup batteries to the load through the set of bi-directional battery converters and the transformer.

Abstract translation: 提供了一种不间断电源（UPS）的方法和系统。 UPS包括三相大功率变压器，被配置为产生和调节一组DC链路电压的一个有源或无源整流器，以及一组级联逆变器，被配置为使用DC链路电压产生AC电压。 UPS还包括一组双向电池转换器，配置为从交流电源供电时为一组备用电池充电，并在备用电池组放电时产生三相交流电压，当交流电源电压 落在预定范围之外。 UPS还包括旁路开关，其配置成当UPS处于旁路操作模式时将AC电源直接电耦合到负载，并且通过该组双向电池转换器将备用电池组电耦合到负载，并且 变压器。

公开(公告)号：US20160036216A1

公开(公告)日：2016-02-04

申请号：US14568817

申请日：2014-12-12

Applicant: General Electric Company

Inventor： Silvio Colombi ,  Andrea Mannuccini ,  Luigi De Bernardi

IPC: H02H9/02 ,  H02M1/32

CPC classification number: H02H9/02 ,  G06F1/266 ,  G06F1/30 ,  H02J3/38 ,  H02J9/061 ,  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 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。