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    Method and apparatus for stability control of open loop motor drive operation
    10.
    发明授权
    Method and apparatus for stability control of open loop motor drive operation 有权
    开环电机驱动运行稳定性控制方法及装置

    公开(公告)号：US09054611B2

    公开(公告)日：2015-06-09

    申请号：US13931839

    申请日：2013-06-29

    申请人： Jingbo Liu ,  Thomas Nondahl ,  Peter Schmidt ,  Semyon Royak

    发明人： Jingbo Liu ,  Thomas Nondahl ,  Peter Schmidt ,  Semyon Royak

    IPC分类号： H02P6/16 ,  H02P6/08 ,  H02P27/04 ,  H02P27/08 ,  H02P21/00

    CPC分类号： H02P6/08 ,  H02P6/085 ,  H02P21/0003 ,  H02P27/047 ,  H02P27/08

    摘要： Motor drives and control methods are presented for sensorless motor speed control in which inverter output currents are sampled from the inverter output, and a frequency modulation value is determined based on the current feedback and either one or more voltage commands or one or more voltage feedback signals. A speed or frequency setpoint is adjusted at least partially according to the frequency modulation value to provide an adjusted frequency or speed setpoint value that is then used in controlling the inverter to provide stability control to mitigate hunting or motor stoppage.

    摘要翻译： 介绍了电机驱动和控制方法，用于无变频电机速度控制，其中逆变器输出电流从变频器输出采样，并且基于电流反馈和一个或多个电压指令或一个或多个电压反馈信号确定频率调制值 。 速度或频率设定点至少部分地根据频率调制值进行调整，以提供调整后的频率或转速设定值，然后用于控制逆变器以提供稳定性控制以减轻寻线或电机停机。