Patent ID: 6819964
Filing Date: 2004-11-16
Classification: G05B

Abstract:
A method of modeling a process system comprising the steps of:(a) modeling a subject process system with an initial model; (b) coupling to the subject process system a multivariable process control system that utilizes said initial model augmented with shadow system controlled variables that are mathematically and functionally equivalent to system manipulated variables, where each shadow system variable corresponds to a respective manipulated variable, to control the subject process system with large independent step changes in one shadow system variable at a time; (c) tuning said multivariable process control system for stable operation of the subject process system; and (d) using data generated from said subject process system, generating an improved model of the subject process system, said steps of tuning and generating effectively perturbing the subject process system to generate data for model identification of the subject process system.