Method and apparatus for driving alternating-current motor
    1.
    发明授权
    Method and apparatus for driving alternating-current motor 有权
    用于驱动交流电动机的方法和装置

    公开(公告)号:US08963459B2

    公开(公告)日:2015-02-24

    申请号:US13483372

    申请日:2012-05-30

    CPC分类号: H02P6/183 H02P21/18 H02P21/24

    摘要: A method of driving an alternating-current (AC) motor while periodically obtaining a rotator angle of the AC motor. The method includes: (a) driving the AC motor by a dS-axis voltage, which is a voltage for an exciting current in a stationary reference frame, and a qS-axis voltage, which is a voltage for generating a rotational force in the stationary reference frame, while sequentially applying different dS-axis voltages and different qS-axis voltages to the AC motor in a control injection period; and (b) obtaining a rotator angle by a dS-axis voltage value, a qS-axis voltage value, a dS-axis current value, and a qS-axis current value in the control injection period.

    摘要翻译: 一种在周期性地获得交流电动机的转子角度的同时驱动交流(AC)电动机的方法。 该方法包括:(a)通过dS轴电压驱动AC电动机,dS轴电压是静止参考系中的励磁电流的电压,qS轴电压是产生旋转力的电压 在控制喷射期间顺序地将不同的dS轴电压和不同的qS轴电压施加到AC电动机; 和(b)在控制喷射期间通过dS轴电压值,qS轴电压值,dS轴电流值和qS轴电流值获得转子角度。