Dynamic Characteristics Verification of Linear Induction Motor by Simultaneous Propulsion and Levitation Control

This paper introduces a magnetic levitation transportation system driven only by linear induction motors. We propose a propulsion and levitation control with two frequency components acting simultaneously and independently. One of the frequency components controls propulsion. The other frequency component controls levitation. Because each controller is non-interfering with each other, this proposed control strategy simplifies the controller. The response of speed and air gap is confirmed by the experiment. As a result, the proposed system is able to control propulsion and levitation simultaneously and independently.