| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control device that can be improved in efficiency by controlling a current pulsation. <P>SOLUTION: The motor control device comprises: a load that has a torque pulsation accompanied by rotation; a motor that drives the load; an inverter that drives the motor variably in speed; and a control means. The device also comprises: an output torque pulsation detection means that detects the amount of the pulsation of output torque; a pulsation correction means that corrects at least one of an output frequency of the inverter and a voltage of the inverter so as to controls the torque pulsation in accordance with the output torque pulsation; and a correction gain adjusting means that increases the correction percentage of the pulsation correction means when an operating frequency is not higher than a prescribed frequency. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
