| 摘要 |
PROBLEM TO BE SOLVED: To cancel trouble caused by the flow of a d-axis current, in a control device for a rotary electric machine that outputs the d-axis current in such a manner that a magnetic flux is generated in a direction opposite to a field magnetic flux generated by a field current.SOLUTION: A control device 40 for a rotary electric machine 10 is applied to the rotary electric machine 10 comprising a rotor 11 including a field coil 12 and a stator 13 including an armature coil 14, and controls a field current to be supplied to the field coil 12 and an armature current to be supplied to the armature coil 14. When representing a current to flow to the armature coil 14 with a current vector formed from a pair of the d-axis current and a q-axis current on a d-axis coordinate system, under the condition that it is after starting increasing the field current with increase of a torque command value to the rotary electric machine 10, the d-axis current is increased in such a direction that a magnetic flux is generated in a direction opposite to the field magnetic flux generated by the field current, and the d-axis current is then decreased gradually for a predetermined time.SELECTED DRAWING: Figure 1 |
