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61 条记录 (耗时 0.017 秒)

    Rotor magnet placement in interior permanent magnet machines
    3.
    发明授权
    Rotor magnet placement in interior permanent magnet machines 有权
    转子磁铁放置在内置永磁机

    公开(公告)号：US07474029B2

    公开(公告)日：2009-01-06

    申请号：US10867402

    申请日：2004-06-14

    申请人： Khwaja M. Rahman ,  James M. Nagashima

    发明人： Khwaja M. Rahman ,  James M. Nagashima

    IPC分类号： H02K21/12 ,  H02K1/27

    CPC分类号： H02K1/2766

    摘要： A machine includes a stator and a rotor having a plurality of poles. Each pole is formed at least in part by a plurality of permanent magnets recessed within the rotor at a predetermined distance from an outer surface of the rotor. The distance is predetermined to minimize rotor flux variation near the outer surface during rotation of the rotor relative to the stator. Eddy current losses are thereby reduced.

    摘要翻译： 机器包括定子和具有多个极的转子。 每个极至少部分地由在转子内凹入预定距离的转子的外表面处的多个永磁体形成。 该距离是预定的，以使转子相对于定子旋转期间的外表面附近的转子磁通变化最小化。 从而减小涡流损耗。

    Methods, systems and apparatus for controlling operation of two alternating current (AC) machines
    8.
    发明授权
    Methods, systems and apparatus for controlling operation of two alternating current (AC) machines 有权
    用于控制两台交流（AC）机器的操作的方法，系统和装置

    公开(公告)号：US08193747B2

    公开(公告)日：2012-06-05

    申请号：US12473988

    申请日：2009-05-28

    申请人： Gabriel Gallegos-Lopez ,  James M. Nagashima ,  Milun Perisic ,  Silva Hiti

    发明人： Gabriel Gallegos-Lopez ,  James M. Nagashima ,  Milun Perisic ,  Silva Hiti

    IPC分类号： H02P21/00

    CPC分类号： H02P5/74 ,  H02P21/22

    摘要： A system is provided for controlling two alternating current (AC) machines via a five-phase PWM inverter module. The system comprises a first control loop, a second control loop, and a current command adjustment module. The current command adjustment module operates in conjunction with the first control loop and the second control loop to continuously adjust current command signals that control the first AC machine and the second AC machine such that they share the input voltage available to them without compromising the target mechanical output power of either machine. This way, even when the phase voltage available to either one of the machines decreases, that machine outputs its target mechanical output power.

    摘要翻译： 提供一种用于通过五相PWM逆变器模块控制两个交流（AC）机器的系统。 该系统包括第一控制回路，第二控制回路和电流指令调整模块。 电流指令调整模块与第一控制回路和第二控制回路结合操作，以连续地调节控制第一交流电机和第二交流电机的电流指令信号，使得它们共享可用的输入电压，而不损害目标机械 两台机器的输出功率。 这样，即使可用于任何一台机器的相电压降低，该机器输出其目标机械输出功率。

    Compact terminal assembly for power converters
    9.
    发明授权
    Compact terminal assembly for power converters 有权
    紧凑型电源转换器端子组件

    公开(公告)号：US08053920B2

    公开(公告)日：2011-11-08

    申请号：US12178897

    申请日：2008-07-24

    申请人： Terence G. Ward ,  George John ,  Edward P. Yankoski ,  Gregory S. Smith ,  James M. Nagashima

    发明人： Terence G. Ward ,  George John ,  Edward P. Yankoski ,  Gregory S. Smith ,  James M. Nagashima

    IPC分类号： B60L1/00

    CPC分类号： H02M7/003 ,  H01L2224/49111

    摘要： A terminal assembly for a power converter is provided. The terminal assembly includes first and second conductive components and a current sensor. The first conductive component has first and second releasable attachment formations. The second conductive component has first and second portions with respective first and second widths. The first width is less than the second width. The first portion is releasably attached to the first conductive component with the second releasable attachment formation. The current sensor has an opening therethrough and is positioned between the first conductive component and the second portion of the second conductive component such that the first portion of the first conductive component extends through the opening. The current sensor is responsive to current flowing through the first portion of the second conductive component.

    摘要翻译： 提供了一种用于功率转换器的端子组件。 端子组件包括第一和第二导电部件和电流传感器。 第一导电组件具有第一和第二可释放的附接结构。 第二导电部件具有相应的第一和第二宽度的第一和第二部分。 第一宽度小于第二宽度。 第一部分通过第二可释放的连接结构可释放地附接到第一导电部件。 电流传感器具有穿过其的开口并且位于第一导电部件和第二导电部件的第二部分之间，使得第一导电部件的第一部分延伸穿过开口。 电流传感器响应于流过第二导电部件的第一部分的电流。

    Double ended inverter system with an impedance source inverter subsystem
    10.
    发明授权
    Double ended inverter system with an impedance source inverter subsystem 有权
    具有阻抗源逆变器子系统的双端逆变器系统

    公开(公告)号：US07956569B2

    公开(公告)日：2011-06-07

    申请号：US12132486

    申请日：2008-06-03

    申请人： Brian A. Welchko ,  James M. Nagashima ,  Gregory S. Smith ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

    发明人： Brian A. Welchko ,  James M. Nagashima ,  Gregory S. Smith ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

    IPC分类号： H02P27/04

    CPC分类号： B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

    摘要： A double ended inverter system suitable for use with an AC electric traction motor of a vehicle is provided. The double ended inverter system cooperates with a first DC energy source and a second DC energy source, which may have different nominal voltages. The double ended inverter system includes an impedance source inverter subsystem configured to drive the AC electric traction motor using the first energy source, and an inverter subsystem configured to drive the AC electric traction motor using the second energy source. The double ended inverter system also utilizes a controller coupled to the impedance source inverter subsystem and to the inverter subsystem. The controller is configured to control the impedance source inverter subsystem and the inverter subsystem in accordance with a boost operating mode, a traditional inverter operating mode, and a recharge operating mode of the double ended inverter system.

    摘要翻译： 提供适用于车辆的交流电动牵引电动机的双端逆变器系统。 双端逆变器系统与可能具有不同标称电压的第一DC能量源和第二DC能量源协作。 双端逆变器系统包括：阻抗源逆变器子系统，被配置为使用第一能量源驱动交流电力牵引电动机;以及逆变器子系统，被配置为使用第二能量源驱动交流电力牵引电动机。 双端逆变器系统还使用耦合到阻抗源逆变器子系统和逆变器子系统的控制器。 控制器配置为根据升压运行模式，传统逆变器工作模式和双端逆变器系统的充电操作模式控制阻抗源逆变器子系统和逆变器子系统。