Title :
Multiestimation scheme for robust adaptive stabilization of discrete systems
Author :
Alonso-Quesada, S. ; De Ia Sen, M. ; Bilbao-Guillerna, A. ; Garrido, A.J.
Author_Institution :
Dpto. Electr. y Electron., Univ. del Pais Vasco, Leioa, Spain
Abstract :
A discrete pole placement-based adaptive controller with multiestimation is synthesized for linear time-invariant plants. A high-level switching structure between the various estimation schemes is used to supervise the re-parameterization of the adaptive controller in real time. The basic usefulness of the proposed multiestimation scheme is related to the improvement of the adaptation transient behaviour while robust closed-loop stability is proved even in the presence of unmodeled dynamics of sufficiently small sizes.
Keywords :
adaptive control; closed loop systems; discrete systems; pole assignment; robust control; time-varying systems; adaptive control; discrete pole placement; discrete systems; high-level switching structure; linear time-invariant plants; multiestimation scheme; robust adaptive stabilization; robust closed-loop stability; Adaptive control; Adaptive systems; Automatic control; Control systems; Polynomials; Programmable control; Robust stability; Robustness; Transient response; Uncertainty;
Conference_Titel :
Decision and Control, 2003. Proceedings. 42nd IEEE Conference on
Print_ISBN :
0-7803-7924-1
DOI :
10.1109/CDC.2003.1272942
