Title :
Linear H∞ optimal control of a two degree of freedom magnetic suspension system
Author :
Lane, David J. ; Gray, W. Steven ; Murphy, K. Michael
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
Abstract :
Most magnetic suspension systems used in industrial and research applications tend to have highly nonlinear dynamics with significant parametric and nonparametric uncertainties. In this paper, a linear H ∞ control law based on the mixed-sensitivity approach is developed for a magnetic suspension system possessing two degrees of freedom. A prototype suspension system was designed and constructed to provide a direct comparison between the actual and theoretical controller performances
Keywords :
H∞ control; dynamics; feedback; linear quadratic control; magnetic levitation; nonlinear systems; robust control; sensitivity analysis; dynamics; linear H∞ control; linear quadratic control; magnetic suspension system; mixed-sensitivity; optimal control; output feedback; robust control; Assembly; Control systems; Lenses; Magnetic forces; Magnetic levitation; Magnets; Optical sensors; Optimal control; Robust stability; Space technology;
Conference_Titel :
American Control Conference, 1997. Proceedings of the 1997
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-3832-4
DOI :
10.1109/ACC.1997.610872
