公开(公告)号：US20160072375A1

公开(公告)日：2016-03-10

申请号：US14482969

申请日：2014-09-10

Applicant: General Electric Company

Inventor： Rui Zhou ,  Luis Jose Garces ,  Ravisekhar Nadimpalli Raju ,  Rixin Lai ,  Di Zhang

IPC: H02M1/00 ,  H02M3/335

CPC classification number: H02M3/33569 ,  H02M1/44 ,  H02M2001/0058 ,  H02M2007/4835 ,  Y02B70/1491

Abstract: A system and method for series connecting electronic power devices are disclosed. In one embodiment, a switching device system includes a first upper arm electrically coupled to a first lower arm and a second upper arm electrically coupled to a second lower arm. Each of the arms include a plurality of low voltage sub-modules connected in series and each plurality of low voltage sub-modules includes an auxiliary switching device, a series switching device, and a capacitor. Each plurality of low voltage sub-modules is configured to be sequentially switched using the auxiliary switching device and the series switching device separately in the upper arms and the respective lower arms to control change in voltage over time (dV/dt) while selectively blocking a desired high voltage. Further, a capacitor voltage balancing (sorting or rotating) algorithm may be used to actively balance voltage across each plurality of low voltage sub-modules.

Abstract translation: 公开了一种用于串联电子功率器件的系统和方法。 在一个实施例中，开关装置系统包括电耦合到第一下臂的第一上臂和电耦合到第二下臂的第二上臂。 每个臂包括串联连接的多个低压子模块，并且每个多个低压子模块包括辅助开关装置，串联开关装置和电容器。 每个多个低压子模块被配置为使用辅助开关装置和串联开关装置在上臂和相应的下臂中分开地依次切换以控制电压随时间的变化（dV / dt），同时选择性地阻塞 所需高电压。 此外，可以使用电容器电压平衡（分选或旋转）算法来主动平衡每个低压子模块的电压。

公开(公告)号：US20150256093A1

公开(公告)日：2015-09-10

申请号：US14200937

申请日：2014-03-07

Applicant: General Electric Company

Inventor： Ranjan Kumar Gupta ,  Luis Jose Garces ,  Ravisekhar Nadimpalli Raju

IPC: H02M5/458 ,  H02J3/36

CPC classification number: H02M5/4585 ,  H02J3/36 ,  H02M1/12 ,  H02M3/158 ,  H02M7/162 ,  H02M7/521 ,  H02M7/7575 ,  H02M2001/007 ,  H02M2001/0077 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A hybrid HVDC converter system includes at least one alternating current (AC) conduit, at least one transformer coupled to said at least one AC conduit, and at least one direct current (DC) conduit. The hybrid HVDC converter system also includes at least one capacitor commutated converter (CCC) configured to convert AC voltages and AC currents to a DC voltage and DC current. The at least one CCC is coupled to the at least one AC conduit through the at least one transformer. The hybrid HVDC converter system further includes at least one self-commutated converter (SCC) configured to convert AC voltages and AC currents to a regulated DC voltage and DC current. The at least one SCC includes at least one AC/DC stage and at least one DC/DC stage coupled to the at least one AC/DC stage.

Abstract translation: 混合HVDC转换器系统包括至少一个交流（AC）导管，耦合到所述至少一个AC导管的至少一个变压器和至少一个直流（DC）导管。 混合HVDC转换器系统还包括被配置为将AC电压和AC电流转换为DC电压和DC电流的至少一个电容器换向转换器（CCC）。 所述至少一个CCC通过所述至少一个变压器耦合到所述至少一个AC导管。 混合HVDC转换器系统还包括至少一个自整流转换器（SCC），其配置成将AC电压和AC电流转换成稳压的DC电压和DC电流。 所述至少一个SCC包括耦合到所述至少一个AC / DC级的至少一个AC / DC级和至少一个DC / DC级。

公开(公告)号：US20150138859A1

公开(公告)日：2015-05-21

申请号：US14080800

申请日：2013-11-15

Applicant: General Electric Company

Inventor： Rui Zhou ,  Luis Jose Garces ,  Fengfeng Tao ,  Maja Harfman Todorovic ,  Charles Michael Stephens ,  Lei Wang

IPC: H02M7/5387 ,  H02M1/14

CPC classification number: H02M7/493 ,  H02M2001/123

Abstract: A power conversion system is presented. The power conversion system includes a power converter. The power converter includes at least two circuits, where each of the at least two circuits includes two or more phase legs, where each of the two or more phase legs includes at least two semiconductor switches. Also, the at least two circuits includes an interphase reactor configured to couple one of the two or more phase legs to at least one other phase leg in the two or more phase legs. Moreover, the power conversion system includes a controller configured to obtain a switching pattern for each of the at least two semiconductor switches of the at least two circuits and selectively switch each of the at least two semiconductor switches based on the obtained switching pattern to reduce a common mode signal in the power conversion system. Method for power conversion is also presented.

Abstract translation: 介绍了电力转换系统。 电力转换系统包括电力转换器。 功率转换器包括至少两个电路，其中至少两个电路中的每一个包括两个或多个相位支路，其中两个或多个相位支路中的每一个包括至少两个半导体开关。 此外，至少两个电路包括间相反应器，其被配置为将两个或多个相位腿中的一个耦合到两个或更多个相位腿中的至少一个其他相位支路。 此外，功率转换系统包括控制器，其被配置为获得至少两个电路中的至少两个半导体开关中的每一个的开关模式，并且基于所获得的开关模式选择性地切换至少两个半导体开关中的每一个，以减少 电源转换系统中的共模信号。 还介绍了电源转换方法。

公开(公告)号：US20140160818A1

公开(公告)日：2014-06-12

申请号：US13711483

申请日：2012-12-11

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Luis Jose Garces ,  Juan Antonio Sabate ,  Di Zhang

IPC: H02M7/5395

CPC classification number: H02M7/5395 ,  H02M7/53871

Abstract: Systems and methods for controlling an electrical power supply are provided. One system includes an input configured for receiving voltage measurement signals for the power supply and a controller for one or more electrical phases of the power supply. The controller includes an integrator configured to integrate the received voltage measurement signals and to generate integrated control signals or integrated error signals. The controller is configured to generate an output signal using the integrated control signals or the integrated error signals. The system also includes an output configured to output the output signal to control switching of the power supply.

Abstract translation: 提供了用于控制电源的系统和方法。 一个系统包括被配置用于接收用于电源的电压测量信号的输入端和用于电源的一个或多个电相位的控制器。 控制器包括集成器，其被配置为对所接收的电压测量信号进行积分并产生集成的控制信号或积分误差信号。 控制器被配置为使用集成控制信号或积分误差信号来产生输出信号。 该系统还包括被配置为输出输出信号以控制电源的切换的输出。

公开(公告)号：US10256732B2

公开(公告)日：2019-04-09

申请号：US14885675

申请日：2015-10-16

Applicant: General Electric Company

Inventor： Rui Zhou ,  Luis Jose Garces ,  Ravisekhar Nadimpalli Raju ,  Ashraf Said Atalla

IPC: H02M3/335 ,  H02J3/38 ,  H02M3/337 ,  H02M1/00

Abstract: A medium voltage direct current (MVDC) collector system for renewable power generation facilities includes at least one renewable energy generation device. The MVDC collector system also includes at least one direct current (DC)-to-DC (DC/DC) power converter coupled to the at least one renewable energy generation device. The at least one DC/DC power converter is configured to shift a switching operation of the DC/DC power converter between full-wave conversion and half-wave conversion. The MVDC collector system further includes at least one controller coupled to the at least one DC/DC power converter. The at least one controller is configured to regulate shifting the switching operation of the at least one DC/DC power converter between full-wave conversion and half-wave conversion.

公开(公告)号：US20170163043A1

公开(公告)日：2017-06-08

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: H02J3/38 ,  H02M7/44

CPC classification number: H02J3/387 ,  H02J3/30 ,  H02J3/32 ,  H02M1/15 ,  H02M7/483 ,  H02M2007/4835 ,  Y02E60/16

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：US09595888B2

公开(公告)日：2017-03-14

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: H02M7/48 ,  H02M7/538 ,  H02M7/5387 ,  H02J3/38

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。

公开(公告)号：US20160352253A1

公开(公告)日：2016-12-01

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: H02M7/5387

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.

Abstract translation: 功率反转系统包括分别耦合到DC电源和AC负载的输入和输出，以及功率逆变器，其包括多个相位支路，每个相位支路具有与至少两个耦合到其中的开关和反并联二极管对并联耦合的两个桥脚 系列。 该系统还包括多个电感器，其中至少一个电感器耦合在每个桥接支腿的中点和LCL滤波器之间，每个相位支路中的电感器被磁耦合。 该系统还包括控制系统，用于以软切换配置来驱动电力逆变器，所述控制系统被编程为根据占空比和相移角将切换信号输出到功率逆变器，确定占空比的值， 并根据占空比的值优化功率逆变器的相移角。

公开(公告)号：US09099936B2

公开(公告)日：2015-08-04

申请号：US13826583

申请日：2013-03-14

Applicant: General Electric Company

Inventor： Ranjan Kumar Gupta ,  Nilanjan Ray Chaudhuri ,  Luis Jose Garces ,  Rajib Datta

IPC: H02M5/44 ,  H02M1/12 ,  H02M1/15 ,  H02M7/757 ,  H02M1/00

CPC classification number: H02M5/44 ,  H02M1/126 ,  H02M1/15 ,  H02M7/7575 ,  H02M2001/0077 ,  Y02E60/60

Abstract: A high voltage direct current (HVDC) converter system includes a line commutated converter (LCC) 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 HVDC converter system also includes a buck converter 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. The LCC and the buck converter are coupled in parallel to an AC conduit and are coupled in series to a DC conduit. The HVDC converter system further includes a filtering device coupled in parallel to the buck converter through the AC conduit. The filtering device is configured to inject AC current having at least one harmonic frequency into the AC conduit.

Abstract translation: 高压直流（HVDC）转换器系统包括线路整流转换器（LCC），其被配置为将多个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。 HVDC转换器系统还包括降压转换器，其被配置为将多个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。 LCC和降压转换器并联耦合到AC导管并且串联耦合到DC导管。 HVDC转换器系统还包括通过AC导管并联耦合到降压转换器的滤波装置。 滤波装置被配置为将具有至少一个谐波频率的AC电流注入到AC导管中。

公开(公告)号：US20150108844A1

公开(公告)日：2015-04-23

申请号：US14058641

申请日：2013-10-21

Applicant: General Electric Company

Inventor： Rui Zhou ,  Luis Jose Garces ,  Rixin Lai

IPC: H02J9/06 ,  H02J1/00

CPC classification number: H02J9/062 ,  H02M2007/4835 ,  Y10T307/696

Abstract: A power converter is provided. The power converter includes a converter leg comprising a plurality of active power link modules coupled to each other. Each of the plurality of active power link module includes exactly two semiconductor switches comprising antiparallel diodes and wherein the antiparallel diodes are coupled in parallel to the respective switches, a filter inductor coupled to a node between the two semiconductor switches, a filter capacitor coupled in parallel across the at least two semiconductor switches and a power storage element directly coupled in parallel to the filter capacitor.

Abstract translation: 提供电源转换器。 功率转换器包括转换器支路，该转换器支路包括彼此耦合的多个有源功率链路模块。 多个有源功率链路模块中的每一个包括正好两个包括反并联二极管的半导体开关，并且其中反并联二极管并联耦合到各个开关，耦合到两个半导体开关之间的节点的滤波电感器，并联耦合的滤波电容器 跨越所述至少两个半导体开关和直接耦合到滤波电容器的功率存储元件。