| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control apparatus which cancels the saturation of a voltage instruction value that does not depend on the specifications of a motor and properly controls the motor. <P>SOLUTION: The motor control apparatus 1 determines a current value id and a current value iq of a d axis and a q axis, by using dq conversion of converting a drive current from a motor M into a dq rectangular coordinate current, and carries out a current loop process for each axis to vector control the motor M. The motor control apparatus has a determination means 4, which makes a determination on the saturation of a synthetic vector Vdq for voltage instruction values Vd* and Vq* of the d axis and the q axis. When the determination means 4 determines that the synthetic vector Vdq for the voltage instruction values Vd* and Vq* of the d axis and the q axis is saturated, the motor control apparatus 1 compensates for the torque instruction input to a current loop, based on the length L of the synthetic vector Vdq and a limit voltage Vlim. <P>COPYRIGHT: (C)2011,JPO&INPIT |
