Robust sampled-data control
Author
Ocalı, Ogan
Advisor
Sezer, Erol
Date
1995Publisher
Bilkent University
Language
English
Type
ThesisItem Usage Stats
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Show full item recordAbstract
Robust control of uncertain plants is a major area of interest in
control theory. In this dissertation, robust stabilization of plants under
various classes of structural perturbations using sampled-data controllers
is considered. It is shown that a controllable system under bounded
perturbations that satisfy certain structural conditions can be stabilized
using high-gain sampled-data state feedback control, provided that the
sampling period is sufficiently small, with generalizations to decentralized
control of interconnected systems. This result is then modified so as to enable
adapting the gain and the sampling periods of controllers online. Finally
another design methodology is given which enables the controllers to operate
on the sampled values of output only, instead of full state measurements.
Keywords
Robust stabilitySampled-data control
Additive perturbations
Interconnected systems
Multirate sampling
Adaptive robust control
Output feedback