Title :
Stability margins for discrete-time uncertain systems
Author :
Aguirre, Gabriel ; Chapellat, Hervé ; Bhattacharyya, S.P.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
The stability of a discrete-time control system subject to structured perturbations is studied. The coefficients of the closed-loop characteristic polynomial of the system are assumed to be affine functions of a set of real plant parameters. The closed-loop characteristic polynomial is rewritten as a linear combination of polynomials, and using these polynomials, the l2 stability margin in parameter space is calculated
Keywords :
closed loop systems; discrete time systems; perturbation techniques; polynomials; stability criteria; affine functions; closed-loop characteristic polynomial; discrete-time control system; discrete-time uncertain systems; l2 stability margin; real plant parameters; structured perturbations; Control systems; Polynomials; Robust stability; Robustness; Uncertain systems;
Conference_Titel :
Decision and Control, 1989., Proceedings of the 28th IEEE Conference on
Conference_Location :
Tampa, FL
DOI :
10.1109/CDC.1989.70485
