Nonlinear Feedback Super Twisting Field Oriented Control of Linear Induction Motors Considering Dynamic End Effects

Abstract

This paper proposes a nonlinear feedback super twisting field oriented control (NSTC) technique for linear induction motors (LIMs), taking into consideration the dynamic end effects. The state space equation of LIM is given based on Ducan's model. Based on the knowledge of indirect field oriented control (IFOC) theory, a nonlinear feedback super twisting controller is designed to achieve speed and flux tracking, regardless of external disturbances. Simulation results show that the the proposed NSTC scheme has good tracking performance and robustness property with external disturbances.