Wj. Wang et al., STABILIZATION, ESTIMATION AND ROBUSTNESS FOR DISCRETE LARGE-SCALE SYSTEMS WITH DELAYS, Control, theory and advanced technology, 10(4), 1995, pp. 1717-1735
Citations number
23
Categorie Soggetti
Computer Application, Chemistry & Engineering","Controlo Theory & Cybernetics","Instument & Instrumentation","Engineering, Eletrical & Electronic","Robotics & Automatic Control
In this paper, we consider the problems of stabilization, estimation a
nd robustness for a discrete large-scale system, which is composed of
several low order time-delay perturbed subsystems. First, by using the
Lyapunov stability theorem, we propose two sufficient conditions for
each nominal subsystem, under which the state estimator and the stabil
izing controller of the nominal system can be designed. Secondly, the
nonlinear perturbation of each subsystem is considered, and two condit
ions similar to the above for the estimator and the stabilizing contro
ller design are set up again; moreover, the tolerable perturbation bou
nd is also derived. This paper has three main features: (i) we need no
t solve any Lyapunov equation or Riccati equation for the main results
, (ii) the results are also applicable to the system without time-dela
y and/or with linear perturbations and (iii) the so called ''matching
condition'' for the interconnection matrices is not needed.