| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for a permanent magnet type synchronous motor capable of performing feedback control on torque and a current of a motor with high accuracy.SOLUTION: The control device for a permanent magnet type synchronous motor includes: a vector control section which controls an inverter 16 by using a current command value and a voltage command value generated on the basis of a torque command value Ta; a rotation position detection section 21 which detects a rotation position of a motor 20; a current detection section 17 which detects a current to be supplied to the motor 20; a power detection section 22 which detects power to be supplied to the motor 20; and a feedback control section 30 which performs feedback control on a real torque value Tb estimated on the basis of the rotation position, a current detection value and a power value into the torque command value Ta and controls a current advance of the current command value so as to minimize an application current to the motor 20 in the case where the real torque value Tb is a predetermined value.SELECTED DRAWING: Figure 1 |
