公开(公告)号：US10243370B2

公开(公告)日：2019-03-26

申请号：US14960729

申请日：2015-12-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Luis Jose Garces ,  Rui Zhou ,  Zhi Zhou ,  Di Zhang

IPC: H02J5/00 ,  H02J3/38 ,  H02J3/32 ,  H02M1/15 ,  H02M7/483 ,  H02J3/30

Abstract: A system for integrating energy storage into a modular power converter includes at least one energy storage unit coupled to a first converter for converting a first direct current (DC) voltage of the at least one energy storage unit into a first high frequency alternating current (AC) voltage. At least three phase legs of the modular power converter generate three phase AC voltages. Each phase leg includes a plurality of switching modules connected in series. The switching modules have a plurality of fully controllable semiconductor switches, an energy storage device, and a second converter coupled to the respective energy storage device for converting a second DC voltage of the energy storage device into a second high frequency AC voltage. In the system, three similarly positioned switching modules of the three phase legs form one power unit. Further, a high frequency transformer is provided which has at least one primary winding connected to the first converter and at least three secondary windings, each connected to the second converter of each of the three similarly positioned switching modules. A controller is configured to regulate at least one electrical parameter of the modular power converter.

公开(公告)号：US20180212520A1

公开(公告)日：2018-07-26

申请号：US15414300

申请日：2017-01-24

Applicant: General Electric Company

Inventor： Di Zhang ,  Ruxi Wang ,  Satish Prabhakaran

IPC: H02M3/158 ,  H02M1/12

CPC classification number: H02M3/158 ,  H02M1/12 ,  H02M1/126 ,  H02M1/40 ,  H02M3/1584 ,  H02M3/33569 ,  H02M7/5387 ,  H02M2001/0064 ,  H02M2003/1586

Abstract: Systems and methods related to controlling flux through an inductor of a power converter are described. For example, a control system is configured to control a multi-level converter having a first leg, a second leg, and at least one inductor. The control system includes a processor operatively coupled to a memory. The processor receives a reference signal. The processor determine flux through at least one inductor of a converter. The processor controls a temporal distribution of the flux through the at least one inductor based on the flux through the at least one inductor according to the reference signal.

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：US09479075B2

公开(公告)日：2016-10-25

申请号：US13955607

申请日：2013-07-31

Applicant: General Electric Company

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

IPC: H02M7/483 ,  H02M7/487 ,  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：US20160056728A1

公开(公告)日：2016-02-25

申请号：US14465887

申请日：2014-08-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Di Zhang ,  Dong Dong ,  Andrew Allen Rockhill

IPC: H02M7/217

CPC classification number: H02M7/487 ,  H02M7/483 ,  H02M7/49 ,  H02M2007/4835

Abstract: A power converter includes at least one leg having a first string operatively coupled to a second string via a first connecting node and a second connecting node. The first string includes a first branch and a second branch operatively coupled via a third connecting node. Each of the branches has a plurality of switching units, a controllable semiconductor switch and the first connecting node and the second connecting node. The first string is operatively coupled across a first bus and a second bus. Furthermore, the second string includes a plurality of controllable semiconductor switches.

Abstract translation: 功率转换器包括至少一个支路，其具有经由第一连接节点和第二连接节点可操作地耦合到第二串的第一串。 第一串包括经由第三连接节点可操作地耦合的第一分支和第二分支。 每个分支具有多个开关单元，可控半导体开关和第一连接节点和第二连接节点。 第一串可操作地连接在第一总线和第二总线上。 此外，第二串包括多个可控半导体开关。

公开(公告)号：US20160020705A1

公开(公告)日：2016-01-21

申请号：US14331242

申请日：2014-07-15

Applicant: General Electric Company

Inventor： Dong Dong ,  Di Zhang ,  Andrew Allen Rockhill

IPC: H02M7/217

CPC classification number: H02M7/217 ,  H02M1/32 ,  H02M7/487 ,  H02M2007/4835

Abstract: A power converter including one or more converter legs is provided. Each converter leg includes a first string including a plurality of switches coupled to each other in series. The one or more converter legs also include a second string operatively coupled to the first string at a first node and a second node in a parallel configuration, where the second string includes a plurality of switching units, and where a second string of one converter leg of the one or more converter legs is operatively coupled to second strings corresponding to other converter legs in the one or more converter legs.

Abstract translation: 提供了包括一个或多个转换器支路的电力转换器。 每个转换器支路包括包括彼此串联连接的多个开关的第一串。 一个或多个转换器支腿还包括在第一节点处可操作地耦合到第一串的第二串和并联配置的第二节点，其中第二串包括多个开关单元，并且其中一个转换器支脚的第二串 所述一个或多个转换器支腿可操作地耦合到对应于所述一个或多个转换器支腿中的其它转换器支脚的第二串。

公开(公告)号：US20160009354A1

公开(公告)日：2016-01-14

申请号：US14328856

申请日：2014-07-11

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Rixin Lai ,  Di Zhang ,  Dong Dong ,  Konrad Roman Weeber ,  Ravisekhar Nadimpalli Raju ,  Steven Michael Mankevich

IPC: B63J3/00

CPC classification number: B63J3/00 ,  B60L3/0092 ,  B63J2003/002 ,  H02G3/00 ,  H02J1/102 ,  H02J7/34 ,  H02J2001/008

Abstract: A power system for a marine ship includes a plurality of protection zones, wherein at least two protection zones are coupled to each other via at least one bus-tie converter. Each of the protection zones includes a plurality of direct current (DC) buses; wherein DC buses which do not have same DC voltage are coupled to each other via at least one DC to DC converter. Furthermore, at least one energy source is coupled to at least one DC bus via a power electronic converter.

Abstract translation: 用于船舶船舶的动力系统包括多个保护区域，其中至少两个保护区域经由至少一个总线连接转换器彼此耦合。 每个保护区域包括多个直流（DC）总线; 其中不具有相同DC电压的DC总线经由至少一个DC-DC转换器彼此耦合。 此外，至少一个能量源经由电力电子转换器耦合到至少一个DC总线。

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：US20150102671A1

公开(公告)日：2015-04-16

申请号：US14054204

申请日：2013-10-15

Applicant: General Electric Company

Inventor： Luis José Garcés Rivera ,  Dong Dong ,  Rixin Lai ,  Di Zhang

IPC: H02J1/08 ,  H02M7/06

CPC classification number: H02M7/06 ,  H02J5/00 ,  H02M7/10 ,  Y10T307/406

Abstract: A system for transmitting direct current (DC) power includes a system DC link for carrying power from a source to a plurality of loads and alternating current (AC) to DC power converter modules coupled in series to the system DC link on a supply side of the system DC link. At least one AC to DC power converter module is connected to the source via at least one controllable semiconductor switch such that when the controllable semiconductor switch is not conducting, the at least one AC to DC power converter module adds about zero voltage to a system DC link voltage and provides a path for a DC link current

Abstract translation: 一种用于传输直流（DC）电力的系统包括一个系统DC链路，用于承载从源到多个负载的电力，以及交流（AC）到直流电力转换器模块，串联连接到供电侧的系统DC链路 系统DC链路。 至少一个AC至DC功率转换器模块经由至少一个可控半导体开关连接到源极，使得当可控半导体开关不导通时，至少一个AC至DC功率转换器模块向系统DC增加大约零电压 链路电压并提供直流链路电流的路径

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。