Gain scheduled control of magnetic suspension system

A gain scheduling approach for the suspension control of a nonlinear MAGLEV system is presented. We show that this technique is very useful for improving not only performance to the operational disturbances originating aerodynamic force but also robustness to the uncertainty of payload. As a scheduling variable, even though the external disturbance need to be estimated in real time, but the additive measurement is not required. Some simulations show that the gain scheduling control system performs very well comparing with other methods using a nonlinear feedback linearization or a fixed gain linear feedback.