Title :
Stability indices for the global analysis of expert control systems
Author :
Aracil, Javier ; Ollero, Anibal ; García-Cerezo, Alfonso
Author_Institution :
Escuela Tecnica Superior de Ingenieros Ind., Sevilla Univ., Spain
Abstract :
The stability of rule-based expert control systems is studied. A control structure with a nonlinear plant and a nonlinear controller, designed on the basis of logical rules incorporating the experience of designers and human operators, is considered. Two classes of indices are presented: one related to the relative stability of the equilibrium point at the origin, and the other to the global stability of the system. These indices can be used for the analysis and design of expert control systems. Some examples are included to illustrate the approach
Keywords :
computerised control; control system analysis; knowledge based systems; nonlinear control systems; stability; control system analysis; global analysis; global stability; nonlinear controller; nonlinear plant; rule-based expert control systems; Artificial intelligence; Automatic control; Control system analysis; Control systems; Control theory; Humans; Nonlinear control systems; Process control; Production control; Stability analysis;
Journal_Title :
Systems, Man and Cybernetics, IEEE Transactions on
