Title :
Balanced robust regulation of a magnetic levitation system
Author :
Bonivento, C. ; Gentili, L. ; Marconi, L.
Author_Institution :
CASYDEIS, Univ. of Bologna, Italy
Abstract :
In this brief, we consider the problem of disturbance suppression for a magnetic levitation system in presence of physical uncertainties. The problem is cast as a nonlinear regulation problem in presence of input constraint and an internal model-based regulator is designed. A control law which does not rely upon complementarity or relaxed complementarity conditions is proposed and compared, from an energetic viewpoint, with complementary control strategies usually presented in literature. Simulation results are presented to confirm the effectiveness of the design.
Keywords :
control system synthesis; controllability; magnetic levitation; nonlinear control systems; position control; robust control; balanced robust regulation; complementary control strategy; control law; disturbance suppression; input constraint; internal model; internal model-based regulator; magnetic levitation system; nonlinear output regulation; nonlinear regulation problem; physical uncertainty; relaxed complementarity condition; robust control; saturated control; simulation; Coils; Control design; Force control; Force feedback; Magnetic forces; Magnetic levitation; Motion control; Nonlinear control systems; Robustness; Uncertainty; Internal model; magnetic levitation; nonlinear output regulation; robust control; saturated control;
Journal_Title :
Control Systems Technology, IEEE Transactions on
DOI :
10.1109/TCST.2005.852107
