Robust Levitation Controller Design of Electromagnetic Suspension Vehicle using Gain Scheduling and Pole Placement Method

초록

Generally electromagnetic suspension vehicle systems are highly nonlinear and essentially unstable systems. This paper describes a robust controller design method of electromagnetic suspension systems using gain scheduled controller with pole placement method. For achieving the levitation controller of the DC electromagnetic suspension system, we considered the gain scheduling method as a popular controller design method. The proposed gain scheduling is based on pole placement method for widely varying nonlinear and parameter dependent dynamic system. Simulation results show that the proposed gain scheduling control with pole placement method robustly yields uniform performance with adequate gap response over the mass variation range.