Browsing 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences by Subject "System Stability"
Now showing items 1-12 of 12
-
Article
-
Article
Adaptive Control of Linear Time-Varying Plants: A New Model Reference Controller Structure
(1989)In this paper we study the problem of developing a control law which can force the output of a linear time-varying plant to track the output of a stable linear time-invariant reference model. We first show that the standard ...
-
Conference Object
Decentralized indirect adaptive control of interconnected systems
(Publ by American Automatic Control Council, 1990)Continuous-time decentralized indirect adaptive controllers are proposed for a large-scale system composed of N interconnected linear subsystems with unknown parameters. Each local adaptive law utilizes a normalizing signal ...
-
Article
Dominant richness and improvement of performance of robust adaptive control
(1989)Several recent robust adaptive control schemes guarantee stability and residual tracking errors which are "small" in the mean for any bounded initial conditions, independent of any persistence of excitation condition. Since ...
-
Conference Object
Model reference adaptive control for plants with unknown relative degree
(Publ by IEEE, 1989)One of the basic assumptions in stable model reference adaptive control is that the relative degree n* of the modeled part of the plant is known exactly and matches that of the reference model. The authors relax this ...
-
Conference Object
New indirect adaptive control scheme for time-varying plants
(Publ by IEEE, 1988)An indirect adaptive control scheme for linear time-varying plants is presented which guarantees the closed-loop stability and exact tracking of a class of reference input signals. By incorporating any a priori available ...
-
Article
A New Indirect Adaptive Control Scheme for Time-Varying Plants
(1990)An indirect robust adaptive controller designed for linear time-invariant plants may also meet its control objective approximately for slowly time-varying plants. The plant parameter variations act as a disturbance in the ...
-
Article
Reply to 'Comments on the robust stability analysis of adaptive controllers using normalizations' by P. P. Khargonekar and R. Ortega
(1990)The author addresses a statement in the above-titled paper (ibid., vol. 34, no. 4, P. 478, Apr. 1989) that the proofs in four earlier papers, including two of which he is a coauthor, failed to establish that the proposed ...
-
Article
Robust adaptive control-a modified scheme
(1991)A normalizing signal that does not require the knowledge of the stability margin of the unmodelled dynamics is used in robust model reference adaptive control (MRAC) for plants with an enlarged class of unmodelled dynamics. ...
-
Conference Object
Robust adaptive LQ control schemes
(Publ by IEEE, 1989)The certainty equivalence principle is used to combine a robust adaptive law with a control structure derived from the linear quadratic (LQ) control problem. The resulting adaptive control scheme is applicable to minimum- ...
-
Article
Robust stability and performance improvement of discrete-time multivariable adaptive control systems
(1989)A procedure for designing and analysing robust adaptive one-step-ahead minimum prediction error control schemes for discrete-time multivariable plants is given. A general robust adaptive law (GRAL) is developed for adjusting ...
-
Conference Object
Robustness analysis of commonly used adaptive control structures
(Publ by IEEE, 1990)Three commonly used adaptive control structures, the model reference control structure, the pole placement control structure, and the linear quadratic control structure, are considered. The robustness properties of these ...