Title :
H∞ DIA control of magnetic suspension systems
Author :
Namerikawa, Toru ; Fujita, Masayuki
Author_Institution :
Dept. of Mech. Eng., Nagaoka Univ. of Technol., Japan
Abstract :
This paper deals with the H∞ DlA control system design attenuating initial-state uncertainties and its application to magnetic suspension systems. Here the H∞ DlA control means a mixed disturbance and an initial state uncertainty attenuation (DlA) control for linear time-invariant systems in the infinite-horizon case. The H∞ DIA control problem supplies H∞ controls with good transients and assures H∞ controls of robustness against initial-state uncertainties. We derived a necessary and sufficient condition of the generalized H∞ DlA problem. We apply this H∞ DIA approach to magnetic suspension systems, and evaluate a mixed attenuation property of the proposed approach via experiments. We investigate a role of the weighting matrix N for the initial state uncertainty in the control system design.
Keywords :
H∞ control; control system synthesis; infinite horizon; linear systems; magnetic levitation; robust control; H∞ controls; disturbance and an initial state uncertainty attenuation; infinite-horizon case; linear time-invariant systems; magnetic suspension systems; robust control; Attenuation; Centralized control; Control systems; Control theory; Infinite horizon; Magnetic levitation; Magnetic properties; Robust control; Sufficient conditions; Uncertainty;
Conference_Titel :
Control Applications, 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8633-7
DOI :
10.1109/CCA.2004.1387621
