Abstract:It is not easy to find a set of control parameters to stabilize the magnetic suspension system when the suspension clearance, velocity of electromagnet and current are taken as the feedback state variables, and control parameters affect each other. To tackle those problems, the suspension clearance, velocity of electromagnet and magnetic flux are taken as the state variables. It is easy to find the stable control parameters in experiment when this method is taken. Simulation proves the validity of the second control method.