Fault-tolerant Control for Maglev Suspension System Based on Simultaneous Stabilization

This paper focuses on the problem of fault tolerant control for maglev suspension system based on simultaneous stabilization theory. Given two plants which are linear models of suspension system before and after the electromagnet failure respectively, we seek for a single compensator that stables both of them simultaneously. A systematic and simple linear control system design method for highly nonlinear plants is adopted. The simulation for the single magnet model shows that the designed fault tolerant controller has a better static and dynamic performance compared with a conventional PID controller. The method may provide valuable experience to the research on maglev suspension control system with more failures.