Title :
Robust H∞ control design for systems with structured parameter uncertainty
Author :
Madiwale, Appasaheb N. ; Haddad, Wassim M. ; Bernstein, D.S.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
Abstract :
In a recent paper a unification of the L2 (LQG) and H∞ control design problems was obtained in terms of modified algebraic Riccati equations. In this study these results are extended to guarantee robust L2 and H∞ performance in the presence of structured real-valued parameter variations in the state-space model. For design flexibility the authors consider two distinct types of uncertainty bounds, for both full- and reduced-order dynamic compensation. An important special case of these results generates L 2/H∞ controller designs with guaranteed gain margins
Keywords :
control system synthesis; optimal control; state-space methods; L2/H∞ controller; algebraic Riccati equations; control system synthesis; design; full order dynamic compensation; gain margins; optimal control; reduced-order dynamic compensation; state-space model; structured parameter uncertainty; Attenuation; Control design; H infinity control; Riccati equations; Robust control; Robustness; State-space methods; Symmetric matrices; Uncertain systems; Uncertainty;
Conference_Titel :
Decision and Control, 1988., Proceedings of the 27th IEEE Conference on
Conference_Location :
Austin, TX
DOI :
10.1109/CDC.1988.194457
