| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device of a motor which can properly set an induction voltage constant of the motor having double rotors depending on the operation state of the motor. <P>SOLUTION: In the control device of the motor which performs magnetic field control by changing a rotor phase difference which is a phase difference between the double rotors 11, 12 of the motor 1, the control device comprises: a current command calculation part 50 which performs the energization control of the motor 1 so that the output torque of the motor 1 reaches a torque command Tr_c depending on the torque command Tr_c, a detected value Ke_s of an induction voltage constant of the motor 1, and the number of revolutions Nm; and a Ke command calculation part 90 and a phase difference control part 80 which change rotor phase difference so that the induction voltage constant of the motor 1 becomes small in a range where a loss of the motor 1 is increased to a prescribed level from a loss in preset limit efficiency. <P>COPYRIGHT: (C)2008,JPO&INPIT |
