Design of Robust Controller for Vector Controlled Induction Motor Based on Q-Parameterization Theory

Abstract

This article is aimed at designing a robust-controller for vector-controlled induction motor drive systems based on the Q-parameterization theory. The set of all stabilizing controllers for the system is characterized by two free Q-parameters of the controllers. The Q-parameters are chosen using an optimization technique to satisfy the design requirements. To demonstrate the effectiveness of the proposed controller, the calculated motor speed and torqueproducing current component in presence of core-loss are compared with those measured in the literature. Simulation results show that good response of the control system due to the step change-of-speed command/load torque can be achieved using the proposed controller.

Keywords:

• Induction Motor
• Vector Control
• Robust Controller
• Q-PARAMETERIZATION