公开(公告)号：US20150036398A1

公开(公告)日：2015-02-05

申请号：US13955607

申请日：2013-07-31

Applicant: General Electric Company

Inventor： Luis José Garcés ,  Di Zhang ,  Andrew Allen Rockhill

IPC: H02M7/00

CPC classification number: H02M7/003 ,  H02M7/483 ,  H02M7/487 ,  H02M2007/4835

Abstract: A power converter is provided. The power converter includes at least one leg. The at least one leg of the power converter includes a plurality of switching units. The switching units are coupled with each other in a serial fashion. Further, in the power converter, the switching units are selected such that at least two switching units in the power converter have different operating voltages.

Abstract translation: 提供电源转换器。 功率转换器包括至少一个支路。 功率转换器的至少一条支路包括多个开关单元。 开关单元以串联方式彼此耦合。 此外，在功率转换器中，选择开关单元，使得功率转换器中的至少两个开关单元具有不同的工作电压。

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：US10658941B2

公开(公告)日：2020-05-19

申请号：US15955064

申请日：2018-04-17

Applicant: General Electric Company

Inventor： Mark Dame ,  Jiangbiao He ,  Di Zhang

IPC: G06F1/16 ,  H05K5/00 ,  H05K7/00 ,  H02M7/00 ,  H02M7/487 ,  H05K1/02 ,  H05K1/14 ,  H05K7/20

Abstract: In an embodiment, a three-level active neutral-point clamped (ANPC) converter system is provided. The system includes first and second Direct Current (DC)-bus structures that include at least one of a number of DC-bus capacitors on printed circuit boards (PCBs). The PCBs are laminated together with an air gap (e.g., one or more millimeters) in between for a thermal dissipation and an insulation creepage. The three DC-bus terminals include PCBs, and are electrically connected to the three-level power converter, which are typically mounted on a heatsink or a cold plate.

公开(公告)号：US10351253B2

公开(公告)日：2019-07-16

申请号：US14984992

申请日：2015-12-30

Applicant: General Electric Company

Inventor： Dong Dong ,  Manoj Ramprasad Shah ,  Rui Zhou ,  Hao Huang ,  Di Zhang

IPC: B64D27/24 ,  H02M7/797 ,  H02M5/458 ,  H02M7/483 ,  B64D27/02 ,  H02M1/00

Abstract: An electric propulsion system includes at least one generator. The electric propulsion system also includes at least one drive engine coupled to the at least one generator. The electric propulsion system further includes at least one electrical device. The electric propulsion system also includes at least one battery integrated isolated power converter (BIIC), where the at least one generator and at least one of the at least one BIIC and the at least one electrical device are coupled, and where the at least one BIIC and the at least one electrical device are coupled.

公开(公告)号：US10291150B1

公开(公告)日：2019-05-14

申请号：US15806352

申请日：2017-11-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Di Zhang ,  Jiangbiao He ,  Sachin Madhusoodhanan ,  Di Pan

IPC: H02M7/5395 ,  H02M7/487

Abstract: A method for operating a phase-leg of a three-level active neutral point clamped (3L-ANPC) converter is presented. The phase-leg includes an output terminal, a plurality of input terminals, and a plurality of switches disposed therebetween. The method includes operating the phase-leg in a neutral state to generate an output voltage having a neutral level. The method further includes transitioning the phase-leg to a first intermediate neutral state from the neutral state. Moreover, the method includes transitioning the phase-leg from the first intermediate neutral state to a first state to generate the output voltage having a first level. A modulator for operating the phase-leg of the 3L-ANPC converter is also presented. Moreover, a 3L-ANPC converter including the modulator is presented.

公开(公告)号：US10075056B2

公开(公告)日：2018-09-11

申请号：US15125325

申请日：2014-03-19

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: H02M7/21 ,  H02M1/08 ,  H02M7/155 ,  H02M7/217 ,  H02M7/525 ,  H02M7/539

CPC classification number: H02M1/083 ,  H02M7/1557 ,  H02M7/217 ,  H02M7/487 ,  H02M7/5152 ,  H02M7/525 ,  H02M7/539 ,  H02M7/7575 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A method for power conversion includes coupling a first string to a second string via a first connecting node and a second connecting node to form at least one leg of a power converter. The first string is operatively coupled across a first bus and a second bus and comprises a first branch and a second branch coupled via a third connecting node. The first branch and the second branch include a plurality of controllable semiconductor switches. Furthermore, the second string comprises a first chain link and a second chain link coupled via an alternating current phase bus and includes a plurality of switching units. The first chain link and/or the second chain link are controlled to generate a negative voltage across at least one of the plurality of controllable semiconductor switches during a switch turn off process.

公开(公告)号：US20170190434A1

公开(公告)日：2017-07-06

申请号：US14984992

申请日：2015-12-30

Applicant: General Electric Company

Inventor： Dong Dong ,  Manoj Ramprasad Shah ,  Rui Zhou ,  Hao Huang ,  Di Zhang

IPC: B64D27/24 ,  H02M5/458 ,  H02M7/797

CPC classification number: B64D27/24 ,  B60Y2200/51 ,  B60Y2200/92 ,  B64D2027/026 ,  B64D2221/00 ,  H02M5/458 ,  H02M7/483 ,  H02M7/797 ,  H02M2001/0077 ,  H02M2007/4835 ,  Y02T50/44 ,  Y02T50/64 ,  Y10S903/903

Abstract: An electric propulsion system includes at least one generator. The electric propulsion system also includes at least one drive engine coupled to the at least one generator. The electric propulsion system further includes at least one electrical device. The electric propulsion system also includes at least one battery integrated isolated power converter (BIIC), where the at least one generator and at least one of the at least one BIIC and the at least one electrical device are coupled, and where the at least one BIIC and the at least one electrical device are coupled.

公开(公告)号：US09559611B2

公开(公告)日：2017-01-31

申请号：US13629882

申请日：2012-09-28

Applicant: General Electric Company

Inventor： Di Zhang ,  Luis Jose Garces ,  Rajib Datta ,  Ravisekhar Nadimpalli Raju

IPC: H02M7/515 ,  H02M7/487 ,  H02M3/337 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/757 ,  H02M7/483

CPC classification number: H02M7/5152 ,  H02M3/3376 ,  H02M7/487 ,  H02M7/537 ,  H02M7/53871 ,  H02M7/7575 ,  H02M2007/4835 ,  Y02E60/60

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 controllable semiconductor switches, 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. A method for power conversion is also presented.

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可控半导体开关，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 穿过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。 还提出了一种电源转换方法。

公开(公告)号：US09515574B2

公开(公告)日：2016-12-06

申请号：US14543516

申请日：2014-11-17

Applicant: General Electric Company

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

IPC: H02M7/487 ,  H02M7/757 ,  H02M7/483

CPC classification number: H02M7/487 ,  H02M7/7575 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A modular embedded multi-level converter (MEMC) includes a first phase portion and a second phase portion. The first phase portion includes a first switch stack operable to couple a first phase branch between a positive DC bus and a midpoint node. The second phase portion includes a second switch stack operable to couple a second phase branch between the midpoint node and a negative DC bus. A DC voltage between the positive DC bus and the negative DC bus is distributable among switching units disposed in the first phase branch and the second phase branch. A distribution of the DC voltage is controlled by regulating a DC voltage at the midpoint node to balance energy among the switching units.

Abstract translation: 模块化嵌入式多电平转换器（MEMC）包括第一相位部分和第二相位部分。 第一相位部分包括可操作以在正DC总线和中点节点之间耦合第一相位分支的第一开关堆叠。 第二相位部分包括可操作以在中点节点和负DC总线之间耦合第二相位分支的第二开关堆叠。 正DC总线和负DC总线之间的直流电压可以分配在设置在第一相分支和第二相分支中的开关单元之间。 通过调节中点节点处的直流电压来控制直流电压的分布，以平衡开关单元之间的能量。