AN APPARATUS AND A METHOD FOR TORQUE CONTROL OF A PERMANENT MAGNET SYNCHRONOUS MOTOR

摘要

PURPOSE: A torque control apparatus for a permanent magnet synchronous motor and a method thereof are provided to easily obtain control values using online calculations without preparation by applying a disturbance observer and a model predictive controller to torque control of a permanent magnet synchronous motor. CONSTITUTION: A disturbance observer (140) outputs a disturbance estimate by receiving d-axial and q-axial inverter voltages which are applied to stator windings. A model predictive controller (150) receives d-axial and q-axial current commands and outputs control input. A current command generator (170) receives a given torque, and calculates and outputs a current command. A space vector pulse width modulator (130) outputs a control signal to operate a permanent magnet synchronous motor (100). A current detector (120) detects a stator current from the output of the space vector pulse width modulator and outputs the detected current. [Reference numerals] (100) Permanent magnet synchronous motor (PMSM); (110) Rotation speed detector; (120) Current detector; (130) Space vector pulse width modulation (SVPWM); (140) Disturbance observer (DOB); (150) Model predictive controller (MPC); (170) Current command generator