Abstract
This paper deals with a passivity-based approach to wide area stabilization of the magnetic suspension systems. The magnetic suspension systems have strong nonlinearity. In order to take the leakage inductance of the electromagnet into account, we design the controller considering the leakage inductance of the electromagnet. The systems can be decomposited two subsystems, electrical subsystem and mechanical subsystem. We design a nonlinear passivity-based controller for each two subsystems. Steady-state and transient experimental results for some operating points show the effectiveness of the proposed method.
