公开(公告)号：US20130099788A1

公开(公告)日：2013-04-25

申请号：US13659337

申请日：2012-10-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Fei XU ,  Tao MA ,  Xi LU ,  Xinhui WU ,  Yimeng SHI ,  Pengcheng ZHU ,  Garron Koch MORRIS ,  Juan Antonio SABATE ,  Jeffrey Neal SLOTNICK

IPC: G01R1/30 ,  H02M7/44 ,  G01R33/341

CPC classification number: G01R33/3852 ,  H02M3/3376 ,  Y02B70/1433

Abstract: A gradient amplifier for driving a gradient coil is disclosed. The gradient amplifier includes a direct current (DC) bus for receiving DC voltage generated from a series resonant converter, an inverter coupled to the DC bus configured to receive the DC voltage at the DC bus and convert the DC voltage to generate an output voltage to be applied to the gradient coil, and an inverter controller coupled to the inverter. The inverter controller is configured to generate control signals to control operation of the inverter based at least on a DC voltage feedback signal measured at the DC bus, an output voltage feedback signal measured at the output of the inverter, and a reference output voltage signal indicative of a desired voltage to be achieved at the output of the inverter.

Abstract translation: 公开了一种用于驱动梯度线圈的梯度放大器。 梯度放大器包括用于接收从串联谐振转换器产生的直流电压的直流（DC）总线，耦合到DC总线的反相器，其被配置为在DC总线处接收DC电压并转换DC电压以产生输出电压 施加到梯度线圈，以及连接到逆变器的逆变器控制器。 逆变器控制器被配置为产生控制信号，以至少基于在DC总线处测量的DC电压反馈信号，在逆变器的输出处测量的输出电压反馈信号和指示的参考输出电压信号来控制逆变器的操作 具有在逆变器的输出端要实现的期望电压。

公开(公告)号：US20180212545A1

公开(公告)日：2018-07-26

申请号：US15834304

申请日：2017-12-07

Applicant: General Electric Company

Inventor： Fei XU ,  Kum-Kang HUH ,  Ahmed ELASSER ,  Mohammed AGAMY

IPC: H02P27/06 ,  H02M3/158

CPC classification number: H02P27/06 ,  H02M3/158 ,  H02M3/1582 ,  H02M2001/0058 ,  H02P2201/09 ,  H02P2201/11 ,  Y02B70/1491

Abstract: Systems and methods are provided for a soft switching topology for a direct current (DC)-DC converter. The systems and methods determine an operational status of an electric motor, and activate at least one of an upper or lower first or second semiconductor switches based on an operation of the electric motor. The first and second switching circuits are conductively coupled to a power inverter circuit. The systems and methods include deliver an adjusted voltage to one of the power inverter circuit or a power circuit based on the operational status of the electric motor.

公开(公告)号：US20170126008A1

公开(公告)日：2017-05-04

申请号：US15129526

申请日：2015-03-27

Applicant: General Electric Company

Inventor： Jie SHEN ,  Zhihui YUAN ,  Christof Martin SIHLER ,  Stefan SCHROEDER ,  Mark Aaron CHAN ,  Fei XU

IPC: H02J3/36 ,  H02M7/44 ,  H02M7/04

Abstract: A modular substation (10) for subsea applications includes a plurality of modular DC/AC converters (32) configured for converting DC electrical power transmitted along a DC transmission link (24) into AC electrical power for supplying to a plurality of subsea loads (56). The plurality of modular DC/AC converters (32) is configured to couple in series to the DC transmission link (24) and couple in parallel to an AC distribution network (52). At least a first modular DC/AC converter (32) is configured to be selectively electrically and mechanically disconnected from the DC transmission link (24) and the AC distribution network (52) to facilitate maintenance of the first modular DC/AC converters (32) while the AC distribution network (52) continues to supply AC electrical power to at least one of the plurality of subsea loads (56). The modular substation (10) also comprises protection and bypass circuits (26) intended to isolate faulty DC/AC converters (32) and to facilitate safe maintenance and repair.

公开(公告)号：US20160159244A1

公开(公告)日：2016-06-09

申请号：US14962332

申请日：2015-12-08

Applicant: General Electric Company

Inventor： Jinping GAO ,  Hai QIU ,  Tong ZHAO ,  Fei XU ,  Hongwu SHE

IPC: B60L11/18 ,  B60L7/16 ,  B60L11/00

CPC classification number: B60L11/1868 ,  B60L7/16 ,  B60L11/005 ,  B60L2240/423 ,  B60L2240/547 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7066

Abstract: An energy management system comprises a first electricity transformer with one or more first leg circuit(s), a second electricity transformer with one or more second leg circuit(s), and a control device. One or more first leg circuit(s) is (are) coupled to an energy-type supply, and one or more second leg circuit(s) is (are) coupled to a power-type supply. The control device will control the first and second electricity transformers operating under at least one of two conditions when a traction device is under driving mode.

Abstract translation: 能量管理系统包括具有一个或多个第一支路电路的第一电力变压器，具有一个或多个第二支路电路的第二电力变压器和控制装置。 一个或多个第一支路电路被耦合到能量型电源，并且一个或多个第二支路电路耦合到功率型电源。 当牵引装置处于驾驶模式时，控制装置将控制在两种状况中的至少一个下操作的第一和第二电力变压器。