HIGH PERFORMANCE CONTROL SYSTEM FOR INDUCTION MOTOR

摘要

A maximum torque control system for an induction motor is provided to reduce the energy consumption of an electronic apparatus by coupling a GAT(Genetic Algorithm Tuning) controller in parallel to a PI(Proportional-Integral) controller. A GAT PI controller outputs a torque component instruction current for controlling a speed of an induction motor(4). A speed measuring unit(5) measures the actual speed of an induction motor inputted from the induction motor to a speed controller. The GAT PI controller receives an error between the instruction speed and the actual speed as an input and outputs an instruction current. A current controller(2) receives the torque component instruction current and a magnetic flux component instruction current and outputs phase voltage instruction values. A space vector PWM(Pulse Width Modulation) inverter(3) receives the phase voltage instruction values and drives the induction motor.