ONLINE IDENTIFICATION OF DIGESTER MODEL COEFFICIENTS AND TRANSPORT LAG

Conventional model based control strategies for dead-lime dominant pro cesses require that the static and dynamic response of the process to its inputs be determined fi-om controlled process perturbation tests w hich are time consuming and require considerable expertise to conduct. The control strategy described in this paper automatically adjusts th e digester cooking model coefficients each time a new K number test re sult is received, In order to eliminate the necessity for manual deter mination of the coefficients at regular intervals.