Simulation analysis of the vehicle-guideway coupling vibration of EMS maglev train

EMS(Elector Magnetic Suspension) maglev train relies on the attraction from the electromagnets to guideway so that the train can be suspended above the guideway, the magnetic levitation system is an open-loop unstable system. In this paper, a differential controller with acceleration feedback control system will be used, using MATLAB, considering the effect of the single suspension control point and guideway dynamics model coupling, we establish a model of single electromagnet-guideway-controller, the interaction between single electromagnet and guideway coupling is modeled, and the stability of the coupled system is analyzed through simulation. The stability of the coupled system and the effect of the coupled resonance on the guideway are discussed by changing the system parameters.