Induction Motor Speed Control Based on Model Reference

This paper presents an optimizing algorithm for speed controlled of the induction motor under sensorless. According to the Lyapunov stability theory, applying the vector analyses method, through the stator current and the rotor flux are calculated to estimate rotor speed. Corresponding to sensorless control drawbacks, a variable structure control scheme for the induction motor is proposed combined with model reference method. Simulation results show that the control plan is effectively.