公开(公告)号：US09705422B2

公开(公告)日：2017-07-11

申请号：US14722251

申请日：2015-05-27

Applicant: General Electric Company

Inventor： Xiaohu Liu ,  Luis Jose Garces ,  Maja Harfman Todorovic ,  Mohammed Agamy

IPC: H02M7/538 ,  H02M7/5387 ,  H02M1/00

CPC classification number: H02M7/53871 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A power inversion system includes an input and output coupleable to a DC power and an AC load, respectively, and a power inverter including a plurality of phase legs each having two bridge legs coupled in parallel with at least two switch and antiparallel diode pairs coupled in series. The system also includes a plurality of inductors, with at least one inductor coupled between a midpoint of each bridge leg and an LCL filter, the inductors in each phase leg being magnetically coupled. The system further includes a control system to drive the power inverter in a soft switching configuration, the control system programmed to output a switching signal to the power inverter according to a duty cycle and a phase shift angle, determine a value of the duty cycle, and optimize the phase shift angle of the power inverter based on the value of the duty cycle.

公开(公告)号：US09496702B2

公开(公告)日：2016-11-15

申请号：US13941657

申请日：2013-07-15

Applicant: General Electric Company

Inventor： Dong Dong ,  Luis Jose Garces ,  Rixin Lai ,  Song Chi ,  Maja Harfman Todorovic ,  Di Zhang

IPC: H02J1/00 ,  H02J3/00 ,  H02H3/16 ,  H02J3/36 ,  E21B41/00

CPC classification number: H02H3/16 ,  E21B41/0085 ,  H02J3/36 ,  H02J2003/365 ,  Y02E60/60 ,  Y10T307/305

Abstract: A method and a high-voltage DC (HVDC) power system are provided. The system includes a plurality of sending-end (SE) modules coupled in electrical series and divided into at least two groups that each operate independently with respect to an electrical ground and a plurality of receiving-end (RE) power converter modules electrically coupled to the plurality of SE modules, the plurality of RE power converter modules including a fast ground-fault detection and control device, the plurality of RE power converter modules including a receiving-end front-end DC-DC converter controller, and an output current damping control.

Abstract translation: 提供了一种方法和高压直流（HVDC）电力系统。 该系统包括多个发送端（SE）模块，其以电串联方式耦合并分成至少两组，每组至少两组相对于电接地单独操作，多个接收端（RE）功率转换器模块电耦合到 所述多个SE模块，所述多个RE功率转换器模块包括快速接地故障检测和控制装置，所述多个RE功率转换器模块包括接收端前端DC-DC转换器控制器和输出电流阻尼 控制。

公开(公告)号：US20150280605A1

公开(公告)日：2015-10-01

申请号：US14229074

申请日：2014-03-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Di Zhang ,  Rixin Lai ,  Luis Jose Garces

IPC: H02M7/217

CPC classification number: H02M7/217 ,  H02M7/219 ,  H02M7/487 ,  H02M2007/4835

Abstract: A power converter is presented. The power converter includes at least one leg, the at least one leg includes a first string, where the first string includes a plurality of diodes, a first connecting node, and a second connecting node, and where the first string is operatively coupled across a first bus and a second bus. Furthermore, the at least one leg includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, where the second string includes a plurality of switching units.

Abstract translation: 介绍了一种电源转换器。 所述功率转换器包括至少一个支路，所述至少一个支路包括第一串，其中所述第一串包括多个二极管，第一连接节点和第二连接节点，并且其中所述第一串可操作地耦合跨越 第一班巴士和第二班车。 此外，所述至少一个支腿包括经由第一连接节点和第二连接节点可操作地耦合到第一串的第二串，其中第二串包括多个开关单元。

公开(公告)号：US20150062991A1

公开(公告)日：2015-03-05

申请号：US14014516

申请日：2013-08-30

Applicant: General Electric Company

Inventor： Di Zhang ,  Luis Jose Garces ,  Andrew Allen Rockhill ,  Rixin Lai

IPC: H02M7/537

CPC classification number: H02M7/537 ,  H02M7/487 ,  H02M7/5152 ,  H02M7/7575 ,  H02M2001/0003 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A power converter includes at least one leg including a first string that includes controllable semiconductor switches, a first connecting node, and a second connecting node and that is operatively coupled across a first bus and a second bus. A second string is operatively coupled to the first string via the first connecting node and the second connecting node. The second string includes a plurality of switching modules wherein each of the plurality of switching modules includes a plurality of fully controllable semiconductor switches and at least one energy storage device. The power converter includes a system controller to control activation of the controllable semiconductor switches and switching modules such that a controlled electrical variable is maintained at a first predetermined reference voltage value and the average internal stored energy of the energy storage devices is maintained at a second predetermined reference value.

Abstract translation: 功率转换器包括至少一条腿，其包括包括可控半导体开关的第一串，第一连接节点和第二连接节点，并且可操作地跨越第一总线和第二总线耦合。 第二串经由第一连接节点和第二连接节点可操作地耦合到第一串。 第二串包括多个开关模块，其中多个开关模块中的每一个包括多个完全可控的半导体开关和至少一个能量存储装置。 功率转换器包括系统控制器，用于控制可控半导体开关和开关模块的激活，使得受控电变量保持在第一预定参考电压值，并且能量存储装置的平均内部存储能量保持在第二预定 参考值。

公开(公告)号：US20150015066A1

公开(公告)日：2015-01-15

申请号：US13941657

申请日：2013-07-15

Applicant: General Electric Company

Inventor： Dong Dong ,  Luis Jose Garces ,  Rixin Lai ,  Song Chi ,  Maja Harfman Todorovic ,  Di Zhang

IPC: H02H3/16 ,  H02J1/00

CPC classification number: H02H3/16 ,  E21B41/0085 ,  H02J3/36 ,  H02J2003/365 ,  Y02E60/60 ,  Y10T307/305

Abstract: A method and a high-voltage DC (HVDC) power system are provided. The system includes a plurality of sending-end (SE) modules coupled in electrical series and divided into at least two groups that each operate independently with respect to an electrical ground and a plurality of receiving-end (RE) power converter modules electrically coupled to the plurality of SE modules, the plurality of RE power converter modules including a fast ground-fault detection and control device, the plurality of RE power converter modules including a receiving-end front-end DC-DC converter controller, and an output current damping control.

Abstract translation: 提供了一种方法和高压直流（HVDC）电力系统。 该系统包括多个发送端（SE）模块，其以电串联方式耦合并分成至少两组，每组至少两组相对于电接地单独操作，多个接收端（RE）功率转换器模块电耦合到 所述多个SE模块，所述多个RE功率转换器模块包括快速接地故障检测和控制装置，所述多个RE功率转换器模块包括接收端前端DC-DC转换器控制器和输出电流阻尼 控制。

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：US20140146585A1

公开(公告)日：2014-05-29

申请号：US13688315

申请日：2012-11-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Fengfeng Tao ,  Maja Harfman Todorovic ,  Luis Jose Garces ,  Rui Zhou ,  Donald Gene Marabell ,  Robert Louis Steigerwald

IPC: H02M7/537 ,  H02M1/14

CPC classification number: H02M7/538 ,  H02J3/383 ,  H02M7/48 ,  H02M7/5387 ,  Y02E10/563

Abstract: A power converter is provided. The power converter includes a converter leg including switches for converting power. The power converter also includes a controller for switching the switches using a pulse width modulation technique. The power converter further includes an interface inductor coupled to the converter leg for avoiding a reverse recovery of current in the switches during operation.

Abstract translation: 提供电源转换器。 功率转换器包括转换器支脚，其包括用于转换功率的开关。 功率转换器还包括用于使用脉冲宽度调制技术来切换开关的控制器。 功率转换器还包括耦合到转换器支脚的接口电感器，用于避免在操作期间开关中电流的反向恢复。