Controller Design for Commercial Maglev Vehicle

An electromagnetic levitation controller design considering guideway deflection is presented. Even though to design a maglev controller to make a vehicle steady suspension under guideway deflection is a key technology in maglev vehicle system, the vehicle-guideway interaction effects haven’t well explored and yet settled. Unlike most approaches based on the linear model, a maglev controller is designed under the nonlinear model. The nonlinear model for the electromagnetic levitation control system is derived. A guideway is simply modeled to the sinusoidal function, which acts as a disturbance to the maglev control system. Based on the model, a state feedback and a sliding mode control are proposed. The feasibility of the controller is verified through the simulation. All parameters used in the simulation are based on the maglev vehicle which is developed by the commercialization project in Korea.