Model-based fault detection in a motor drive
    3.
    发明授权
    Model-based fault detection in a motor drive 有权
    基于型号的电机驱动故障检测

    公开(公告)号:US07091724B2

    公开(公告)日:2006-08-15

    申请号:US10625017

    申请日:2003-07-23

    IPC分类号: G01R31/06 G01R31/34

    CPC分类号: G01R31/346 G01R31/343

    摘要: A method for detecting an open winding in a motor. The method employs passive monitoring of the voltage, current and speed of the motor. A residue voltage is calculated that equals the difference between an idealized set of voltage drops across the motor load elements and the actual voltage drops. When the magnitude of the residue voltage equals or exceeds a threshold, an open winding condition may be declared and appropriate action may be taken.

    摘要翻译: 一种用于检测电机中的开路绕组的方法。 该方法采用无源监测电机的电压,电流和速度。 计算残余电压,其等于电机负载元件上的理想组合电压差与实际电压降之间的差。 当残余电压的大小等于或超过阈值时,可以宣布开放绕组条件,并且可以采取适当的动作。