Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
696982 | Automatica | 2011 | 5 Pages |
Abstract
The proposed procedure is implemented without breaking the loop with the controller in operation, by activating a cascade of band-pass filters in series with a relay in the inner loop and a notch filter in the outer loop. A highly accurate estimate of the critical point of a process Gp(s)Gp(s) is obtained in the presence of measurement noise and load disturbance. The effectiveness of the proposed procedure is illustrated using a test batch consisting of stable, integrating and unstable processes, including dead-time.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Tomislav B. Šekara, Miroslav R. Mataušek,