| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter controller for driving a motor, which satisfies even the harmonic regulation of a power supply current while being achieved in the reduction of size, weight and cost. <P>SOLUTION: In the inverter controller for driving a motor provided with a capacitor of very small capacitance between a reactor of very small capacitance and a DC bus line of the inverter, a voltage distortion amount is calculated from the time series variation of an inverter applying voltage value. An indication rotation speed is corrected corresponding to the calculated result to avoid motor abnormal stop even when a power source distortion occurs, with the continuous operation of the motor. <P>COPYRIGHT: (C)2009,JPO&INPIT |
