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71 条记录 (耗时 0.022 秒)

    Method and apparatus for common-mode voltage cancellation
    2.
    发明授权
    Method and apparatus for common-mode voltage cancellation 有权

    公开(公告)号：US11437970B2

    公开(公告)日：2022-09-06

    申请号：US17146746

    申请日：2021-01-12

    申请人： GE Aviation Systems LLC

    发明人： Cong Li ,  Xiaochuan Jia

    IPC分类号： H03H7/06 ,  H03H1/00 ,  H03H7/42

    摘要： A common-mode voltage cancellation (CMVC) circuit, is disclosed. The circuit includes a set of input lines arranged to receive a respective phase voltage, and a set of output lines arranged to provide a respective output phase voltage. The circuit further includes a set of coupled inductors, each having a respective primary winding and secondary winding coupled in signal communication at a respective upstream end to a respective input line to receive a respective phase voltage therefrom, each respective phase voltage having a common-mode voltage component. Each primary winding being coupled at a respective downstream end to ground, and each secondary winding being coupled in series between the respective input line and a respective output line. The circuit includes a set of capacitors, each capacitor being electrically coupled to a respective input line and in series with a respective primary winding of the set of coupled inductors.

    AIRCRAFT STARTING AND GENERATING SYSTEM
    3.
    发明申请
    AIRCRAFT STARTING AND GENERATING SYSTEM 有权

    公开(公告)号：US20210384853A1

    公开(公告)日：2021-12-09

    申请号：US16893879

    申请日：2020-06-05

    申请人： GE Aviation Systems LLC

    发明人： Hao Huang ,  Xiaochuan Jia ,  Manish Ashvinkumar Dalal

    IPC分类号： H02P9/08 ,  H02M7/5387 ,  F02C7/268 ,  F02N11/04 ,  F02N11/08

    摘要： An aircraft starting and generating system includes a starter/generator and an inverter/converter/controller that is connected to the starter/generator and that generates AC power to drive the starter/generator in a start mode for starting a prime mover of the aircraft, and that converts AC power, obtained from the starter/generator after the prime mover have been started, to DC power in a generate mode of the starter/generator. A four leg inverter is coupled with the DC power output and has an inverter/converter/controller (ICC) with a four leg MOSFET-based bridge configuration that drives the starter/generator in a start mode for starting a prime mover of the aircraft, and converts DC power to AC power in a generate mode of the starter/generator. A four leg bridge gate driver is configured to drive the four leg MOSFET-based bridge using pulse width modulation (PWM) during start and generate mode.

    Power generation system
    5.
    发明授权
    Power generation system 有权

    公开(公告)号：US10689999B2

    公开(公告)日：2020-06-23

    申请号：US15902430

    申请日：2018-02-22

    申请人： GE AVIATION SYSTEMS, LLC

    发明人： Hao Huang ,  Xiaochuan Jia ,  Arthur Vorwerk Radun

    IPC分类号： F01D15/10 ,  F02C7/32 ,  H02M3/158 ,  H02P9/00 ,  H02P101/30 ,  H02K7/18

    摘要： A power generation system includes an electric generator mechanically driven by a variable speed kinetic source, a first power conversion system connected with an output of the electric generator, and a second power conversion system connected with the output of the electric generator, wherein the electric generator and power conversion systems are adapted to convert the output of the electric generator to a predetermined direct current (DC) voltage.

    Method and assembly of an electric machine
    8.
    发明授权
    Method and assembly of an electric machine 有权

    公开(公告)号：US10374486B2

    公开(公告)日：2019-08-06

    申请号：US15468849

    申请日：2017-03-24

    申请人： GE AVIATION SYSTEMS, LLC

    发明人： Hao Huang ,  Xiaochuan Jia

    IPC分类号： H02K9/19 ,  H02K7/20 ,  H02K9/197 ,  H02K1/32 ,  H02K3/24 ,  H02K7/18

    摘要： A method and assembly of a dry cavity oil cooled electric machine includes a housing, a shaft configured to operably couple with a source of rotational force and rotate about a rotational axis, and an exciter rotor and a permanent magnet generator rotor carried by the shaft, wherein the exciter rotor and the permanent magnet generator rotor rotate relative to the housing, which provides such a construction of dry cavity generators that have high efficiency and high power density.