| Titre : | Feedback - invariant approach to time - delay estimation for performance monitoring (2012) |
| Auteurs : | Christopher A. Harrison, Auteur ; S. Joe Qin, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 26, Juillet 2012) |
| Article en page(s) : | pp. 9094-9100 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Surveillance Feedback |
| Résumé : | A simple time-delay estimation approach that requires temporarily retuning the existing PID controller is presented. Closed-loop output data are fitted with autoregressive moving average models at two different controller tunings. The time delay is determined by using the feedback-invariance principle that the closed-loop impulse response coefficients do not change inside the time-delay window. This approach requires no intervention to plant operation and does not estimate the open-loop process model but the time delay only. The estimated time delay is particularly suitable for use in control performance monitoring. |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26107465 |
