| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller having a simple configuration and capable of reducing the distortion of a phase current flowing through a stator winding at a low cost in a motor in which a change part of an induced voltage and inductance are distorted. <P>SOLUTION: An induced voltage ripple table I17 obtained as an amount on a dq axis for canceling a torque ripple component other than a basic sinusoidal wave is prepared from an induced voltage waveform obtained in magnetic field analysis of a motor M10, the amount of on the dq axis for canceling the torque ripple component read from the induced voltage ripple table I17 is added to dq axis voltage commands vd*, vq* generated by a dq-axis command generating section 16 in accordance with the rotation angle of the motor M10, and the added amount is given to a dq-3 phase conversion section 14 to reduce the torque ripple of the motor M10, and the motor is driven. <P>COPYRIGHT: (C)2008,JPO&INPIT |
