CONTROL APPARATUS OF SYNCHRONOUS MOTOR

摘要

A control apparatus of a synchronous motor according to the present invention includes: a current command generation unit for generating a d-phase current command and a q-phase current command; a current detection unit for detecting a d-phase current and a q-phase current; a short-circuiting device for short-circuiting the synchronous motor to apply dynamic braking to the synchronous motor; and a short-circuit control unit for controlling the short-circuiting device; wherein the current command generation unit controls the q-phase current command so as to decrease the q-phase current after receipt of a dynamic braking signal; and the short-circuit control unit controls the short-circuiting device to short-circuit the synchronous motor after the receipt of the dynamic braking signal and after a lapse of a predetermined time from the control of the q-phase current command by the current command generation unit.

主权项

1. A control apparatus of a synchronous motor, comprising:
a current command generation unit for generating a d-phase current command and a q-phase current command; a current detection unit for detecting a d-phase current and a q-phase current: a short-circuit device for short-circuiting the synchronous motor to apply dynamic braking to the synchronous motor; and a short-circuit control unit for controlling the short-circuiting device, wherein the current command generation unit controls the q-phase current command so as to decrease the q-phase current after receipt of a dynamic braking signal, and wherein the short-circuit control unit controls the short-circuiting device so as to short-circuit the synchronous motor after the receipt of the dynamic braking signal and after a lapse of a predetermined time from the control of the q-phase current command by the current command generation unit.