ONLINE CONTROLLER TUNING FOR UNSTABLE SYSTEMS

Authors
KAVDIA M CHIDAMBARAM M
Citation
M. Kavdia et M. Chidambaram, ONLINE CONTROLLER TUNING FOR UNSTABLE SYSTEMS, Computers & chemical engineering, 20(3), 1996, pp. 301-305
Citations number
9
Categorie Soggetti
Computer Application, Chemistry & Engineering","Engineering, Chemical","Computer Science Interdisciplinary Applications
Journal title
Computers & chemical engineering → ACNP
ISSN journal
00981354
Volume
20
Issue
3
Year of publication
1996
Pages
301 - 305
Database
ISI
SICI code
0098-1354(1996)20:3<301:OCTFUS>2.0.ZU;2-O
Abstract
A simple method for tuning controllers on-line for unstable processes is proposed. The step response data of the closed loop system with a p roportional controller gain is used to identify model parameters of an unstable first order plus time delay transfer function. Reported tuni ng formulae for PI controllers for unstable systems are applied to obt ain the controller parameters. The response of the closed loop system with the controller settings of the identified model is compared with that of the actual system's controller parameters.