| 摘要 |
PURPOSE:To improve the controlling accuracy by composing a current control regulator of a PI regulator, and an amplifier receiving a bias input to output the maximum voltage command that the output voltage of an inverter is zero when the output of the PI regulator is zero. CONSTITUTION:A current regulator 21 is composed of a PI regulator 22, and an amplifier 23 for outputting a voltage command corresponding to an insensitive zone when the output of the PI is zero. The output voltage of the inverter corresponds to a current command continuously even when the positive and negative directions of the current command are switched irrespective of the insensitive zone by providing the amplifier 23, thereby smoothly driving and controlling a motor. |
