Title :
A stable two-level hybrid controller for nonlinear discrete-time systems
Author :
Parisini, T. ; Sacone, S.
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Trieste Univ., Italy
Abstract :
Hybrid systems made up of a continuous plant supervised by a discrete-event controller are considered in this paper. A set of optimal feedback control functions is defined at the continuous level. The aim of the discrete-event controller, modelled by means of a finite-state automaton, is that of choosing, in the above mentioned set, the best control action to be applied to the plant in dependence of the current plant conditions and of possibly occurred external events. The overall control scheme is, thus, a two-level hybrid control scheme. A preliminary analytical study of the stability properties of the hybrid control scheme is presented
Keywords :
discrete event systems; discrete time systems; feedback; finite automata; hierarchical systems; nonlinear control systems; optimal control; stability; continuous plant; discrete-event controller; finite-state automaton; nonlinear discrete-time systems; optimal feedback control functions; stable two-level hybrid controller; Aggregates; Automata; Automatic control; Bismuth; Communication system control; Control systems; Feedback control; Nonlinear control systems; Optimal control; Stability analysis;
Conference_Titel :
Decision and Control, 1997., Proceedings of the 36th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4187-2
DOI :
10.1109/CDC.1997.657622
