An expert system for improved on-line controller performance

This paper describes an expert system (ES) meant for the on-line parameter improvement of PID controllers, for each running; a single SE series examines the determining performances through the quality variables, following the response. Based on the errors vs the desired response, adjust parameter increments of decrements are established to obtain the optimal parameters. The inference mechanism is declared as a task; its running may be interrupted by higher priority tasks. The system is dedicated to industrial applications, but may be extended to other types of processes