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：US20150108925A1

公开(公告)日：2015-04-23

申请号：US14589195

申请日：2015-01-05

Applicant: General Electric Company

Inventor： Viswanathan Kanakasabai ,  Bhaskar Sen

IPC: B60L11/18 ,  H05K13/00

CPC classification number: H02P27/06 ,  B60L11/005 ,  B60L11/1853 ,  B60L11/1866 ,  B60L11/1868 ,  B60L15/007 ,  B60L2210/10 ,  B60L2240/54 ,  B60Y2300/91 ,  B60Y2400/112 ,  H02P27/14 ,  H05K13/00 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7061 ,  Y02T10/7066 ,  Y10T29/49117 ,  Y10T307/582 ,  Y10T307/707

Abstract: A modular stacked DC architecture for traction system includes a propulsion system includes an electric drive, a direct current (DC) link electrically coupled to the electric drive, and a first DC-DC converter coupled to the DC link. A first energy storage device (ESD) is electrically coupled to the first DC-DC converter, and a second DC-DC converter is coupled to the DC link and to the first DC-DC converter. The system also includes a second energy storage device electrically coupled to the second DC-DC converter and a controller coupled to the first and second DC-DC converters and configured to control a transfer of energy between the first ESD and the DC link via the first and second DC-DC converters.

Abstract translation: 用于牵引系统的模块化堆叠DC架构包括推进系统，其包括电驱动器，电耦合到电驱动器的直流（DC）连接器和耦合到DC链路的第一DC-DC转换器。 第一能量存储装置（ESD）电耦合到第一DC-DC转换器，并且第二DC-DC转换器耦合到DC链路和第一DC-DC转换器。 该系统还包括电耦合到第二DC-DC转换器的第二能量存储装置和耦合到第一和第二DC-DC转换器并被配置为经由第一DC-DC转换器控制第一ESD和DC链路之间的能量传递的控制器 和第二DC-DC转换器。