A REAL-TIME SUPERVISORY SYSTEM FOR TOTAL LOSS CONTROL

This paper describes a real-time expert system that offers on-line dec ision support to operators of complex plant who are faced with unusual and potentially hazardous situations. The overall background and phil osophy of the system as well as its essential functionalities are desc ribed. A pilot application for an extractive distillation unit of a pe trochemical plant is then presented with emphasis on the techniques an d models being used. This includes in particular a description of the structural, functional, and behavioral models of the plant which suppo rt many of the required functionalities of this type of system. Finall y, the distributed and object oriented software architecture, a key te chnique for such systems, is illustrated. (C) 1995 John Wiley & Sons, Inc.