公开(公告)号：US20150078046A1

公开(公告)日：2015-03-19

申请号：US14026737

申请日：2013-09-13

Applicant: General Electric Company

Inventor： Ranjan Kumar Gupta ,  Rui Zhou

IPC: H02M7/04

CPC classification number: H02M7/04 ,  H02J1/102 ,  H02J3/36 ,  H02J3/386 ,  H02M2001/0077 ,  Y02E10/763 ,  Y02E60/60

Abstract: A fraction rated conversion system for coupling a plurality of high voltage direct current (HVDC) power strings in parallel to an HVDC transmission system includes at least one fraction rated power converter coupled to the plurality of HVDC power strings and at least one capacitive device coupled to the at least one fraction rated power converter. The at least one fraction rated power converter and the at least one capacitive device regulate a differential voltage across each HVDC power string of the plurality of HVDC power strings to be substantially similar to each other.

Abstract translation: 用于将多个高压直流（HVDC）功率串并联连接到HVDC传输系统的分数额定转换系统包括耦合到多个HVDC功率串的至少一个分数额定功率转换器和耦合到 至少一个分数额定功率转换器。 所述至少一个分数额定功率转换器和所述至少一个电容性装置调节所述多个HVDC功率串中的每个HVDC功率串的差分电压基本上彼此相似。

公开(公告)号：US20150070939A1

公开(公告)日：2015-03-12

申请号：US14020111

申请日：2013-09-06

Applicant: General Electric Company

Inventor： Ranjan Kumar Gupta ,  Ravisekhar Nadimpalli Raju ,  Rahul Shantilal Chokhawala

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02H3/025 ,  H02H3/06 ,  H02H3/08 ,  H02H7/261 ,  H02H7/268 ,  H02H9/02 ,  H02J3/36 ,  H02M1/32 ,  H02M3/337 ,  H02M7/10 ,  H04Q9/00 ,  Y02E60/60

Abstract: An electric power conversion system is coupled to a high voltage direct current (HVDC) transmission system. The electric power conversion system includes a plurality of power conversion modules. At least one of the power conversion modules includes at least one power converter coupled to at least one DC power terminal. The power conversion module also includes at least one isolation device coupled to the at least one power converter. The at least one power converter and the at least one isolation device at least partially define an isolatable portion of the electric power conversion system. The at least one isolation device is configured to remove the isolatable portion from service. The at least one power converter is configured to decrease electric current transmission through the isolatable portion prior to opening the at least one isolation device.

Abstract translation: 电力转换系统耦合到高压直流（HVDC）传输系统。 电力转换系统包括多个电力转换模块。 至少一个功率转换模块包括耦合到至少一个DC电源端子的至少一个功率转换器。 功率转换模块还包括耦合到至少一个功率转换器的至少一个隔离装置。 所述至少一个功率转换器和所述至少一个隔离装置至少部分地限定所述电力转换系统的可隔离部分。 所述至少一个隔离装置被配置为从所述可分离部分去除所述可分离部分。 所述至少一个功率转换器被配置为在打开所述至少一个隔离装置之前减小通过所述可隔离部分的电流传输。

公开(公告)号：US20140347898A1

公开(公告)日：2014-11-27

申请号：US14453637

申请日：2014-08-07

Applicant: General Electric Company

Inventor： Ravisekhar Nadimpalli Raju ,  Luis Jose Garces ,  Ranjan Kumar Gupta ,  Di Zhang ,  Andrew Allen Rockhill

IPC: H02M5/458

CPC classification number: H02M1/32 ,  H02M5/4585 ,  H02M7/217 ,  H02M7/483 ,  H02M2007/4835

Abstract: A power converter module is provided. The power converter module includes a first converter leg and a second converter leg. The first converter leg includes a first switching unit and a second switching unit coupled in series. The second switching unit is disposed in a reverse orientation with respect to an orientation of the first switching unit. The second converter leg includes a third switching unit and a diode coupled in series. The third switching unit is disposed in a reverse orientation with respect to the orientation of the first switching unit. The power converter also includes a first energy storage device operatively coupled between the first converter leg and the second converter leg. The power converter module further includes a second energy storage device operatively coupled between the first converter leg and the second converter leg.

Abstract translation: 提供电源转换器模块。 功率转换器模块包括第一转换器支路和第二转换器支路。 第一转换器支路包括串联耦合的第一开关单元和第二开关单元。 第二开关单元相对于第一开关单元的取向以相反的方向设置。 第二转换器支路包括串联耦合的第三开关单元和二极管。 第三开关单元相对于第一开关单元的取向以相反方向设置。 功率转换器还包括可操作地耦合在第一转换器支路和第二转换器支路之间的第一储能装置。 功率转换器模块还包括可操作地耦合在第一转换器支路和第二转换器支路之间的第二能量存储装置。

公开(公告)号：US20140265583A1

公开(公告)日：2014-09-18

申请号：US13842844

申请日：2013-03-15

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Nilanjan Ray Chaudhuri ,  Ranjan Kumar Gupta ,  Rajib Datta ,  Ravisekhar Nadimpalli Raju

IPC: H02J1/00

CPC classification number: H02J1/00 ,  H02J3/36 ,  H02J3/386 ,  H02J13/0086 ,  Y02E10/763 ,  Y02E40/72 ,  Y02E60/60 ,  Y04S10/123 ,  Y10T307/549

Abstract: A direct current (DC) transmission and distribution (T&D) system includes a plurality of DC-to-DC converter devices defining a plurality of isolatable portions of the DC T&D system. The DC T&D system also includes a DC T&D control system coupled to the DC-to-DC converter devices. The DC T&D control system includes a plurality of current sensors. At least one of the current sensors is positioned at one of the DC-to-DC converter devices. The current sensor is configured to transmit signals representative of a value of DC electric current transmission through the DC-to-DC converter device. The DC T&D control system also includes a plurality of processors. At least one processor is coupled to the current sensor and the DC-to-DC converter device. The processor is configured to regulate DC current transmission through the DC-to-DC converter device as a function of the value of DC current transmission through the DC-to-DC converter device.

Abstract translation: 直流（DC）传输和分配（T＆D）系统包括限定DC T＆D系统的多个可隔离部分的多个DC-DC转换器装置。 DC T＆D系统还包括耦合到DC-DC转换器设备的DC T＆D控制系统。 DC T＆D控制系统包括多个电流传感器。 至少一个电流传感器位于DC-DC转换器装置之一处。 电流传感器被配置为传送表示通过DC-DC转换器装置的DC电流传输的值的信号。 DC T＆D控制系统还包括多个处理器。 至少一个处理器耦合到电流传感器和DC-DC转换器装置。 处理器被配置为根据通过DC-DC转换器装置的DC电流传输的值来调节通过DC-DC转换器装置的DC电流传输。

公开(公告)号：US20140146582A1

公开(公告)日：2014-05-29

申请号：US13688658

申请日：2012-11-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ranjan Kumar Gupta ,  Nilanjan Ray Chaudhuri

IPC: H02J3/36

CPC classification number: H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: A high voltage direct current (HVDC) converter system includes at least one line commutated converter (LCC) and at least one current controlled converter (CCC). The at least one LCC and the at least one CCC are coupled in parallel to at least one alternating current (AC) conduit and are coupled in series to at least one direct current (DC) conduit. The at least one LCC is configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in only one direction. The at least one current controlled converter (CCC) is configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in one of two directions.

Abstract translation: 高压直流（HVDC）转换器系统包括至少一个线路换向转换器（LCC）和至少一个电流控制转换器（CCC）。 所述至少一个LCC和所述至少一个CCC并联耦合到至少一个交流（AC）导管并且串联耦合到至少一个直流（DC）导管。 至少一个LCC被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及仅在一个方向上传输的DC电流。 所述至少一个电流控制转换器（CCC）被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及沿两个方向之一传输的DC电流。