Gain Scheduling Control of Levitation System in Electromagnetic Suspension Vehicle

초록

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 control. 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 linear quadratic Gaussian(LQG) and continuous Kalman estimator for widely varying nonlinear and parameter dependent dynamic system. Simulation results show that the proposed gain scheduling method based on LQG and continuous Kalman filter methodology robustly yields uniform performance with adequate gap response over the mass variation range.

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