Controlling currents in parallel AC/DC converters
    1.
    发明授权
    Controlling currents in parallel AC/DC converters 失效
    并联AC / DC转换器的控制电流

    公开(公告)号:US5956244A

    公开(公告)日:1999-09-21

    申请号:US35718

    申请日:1998-03-05

    IPC分类号: H02M7/17 H02M7/48

    CPC分类号: H02M7/17

    摘要: An apparatus for converting three phase AC supply line voltages to DC voltage on a DC bus, the apparatus including a master converter subsystem and at least one slave converter subsystem wherein each subsystem includes a current regulator, a PMW modulator and a converter, the master converter linked to the supply lines and the slave converter linked to the supply lines via intermediate lines, each regulator receiving a current command signal and generating modulating signals, each modulator using a carrier signal and modulating signals from a corresponding regulator to generate control signals to control a corresponding converter, the intermediate lines linked to a common mode choke for essentially eliminating common mode currents in the intermediate lines.

    摘要翻译: 一种用于将三相AC电源线电压转换为DC总线上的DC电压的装置,该装置包括主转换器子系统和至少一个从属转换器子系统,其中每个子系统包括电流调节器,PMW调制器和转换器,主转换器 连接到通过中间线连接到电源线的供电线路和从属转换器,每个调节器接收电流指令信号并产生调制信号,每个调制器使用载波信号并且调制来自相应调节器的信号以产生控制信号 相应的转换器,连接到共模扼流圈的中间线基本上消除中间线中的共模电流。

    Dual phase resolver to digital converter
    2.
    发明授权
    Dual phase resolver to digital converter 失效
    双相分解器到数字转换器

    公开(公告)号:US5347277A

    公开(公告)日:1994-09-13

    申请号:US954837

    申请日:1992-09-30

    IPC分类号: G01D5/20 G01D5/244 H03M1/64

    摘要: A dual phase resolver to digital converter having two separate channels for generating rotor position data. The first channel generates an indication of rotor position based on a sinewave type reference signal applied to a first stator winding and the rotor signal while the second channel provides an indication of rotor position based on a cosinewave type reference signal applied to the second stator winding and the rotor signal. Logic circuitry associated with the data channels provide separate fault data indicative of when position data may be subject to error. The data from the two channels are selectively combined in the output of the converter. Data from one channel is used when the other channel is subject to fault. An average of the data is used when both channels are operating properly in order to provide greater accuracy.

    摘要翻译: 具有两个用于产生转子位置数据的独立通道的双相分解器到数字转换器。 第一通道基于施加到第一定子绕组的正弦波型参考信号和转子信号产生转子位置的指示,而第二通道基于施加到第二定子绕组的余弦波类型参考信号提供转子位置的指示,以及 转子信号。 与数据通道相关联的逻辑电路提供指示位置数据何时可能出现错误的单独的故障数据。 来自两个通道的数据被选择性地组合在转换器的输出端。 当其他通道发生故障时,将使用来自一个通道的数据。 当两个通道正常工作以提供更高的精度时,使用数据的平均值。