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：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：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。