Design of state-PID feedback controller for magnetically suspended balance beam system

This paper presents the design of an State-PID Feedback Controller (SFCPID) for a highly unstable non-linear system, magnetically suspended balanced beam (MSBB) and analysis of its effects. The modelling of Magnetically Suspended Balance Beam (MSBB) and design of Integral sliding mode controller are carried out using MATLAB/SIMULINK. The disturbance rejection of the controller is investigated and the stabilization performance of the State-PID Feedback Controller is compared with that obtained by a conventional state feedback controller with integral action when a disturbance force applied.