Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9540628 | Journal of the Franklin Institute | 2005 | 14 Pages |
Abstract
The paper considers the problem of designing PI controllers for industrial processes approximated by a first-order time-delayed model. The suggested frequency-domain approach is based on a normalized open-loop transfer function and makes use of the loci of constant stability margins and other performance indices in the parameter space. In this way, it is possible to evaluate the effects of uncertainties in the process parameters and, thus, control system robustness. Some examples show how the procedure operates.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Wieslaw Krajewski, Antonio Lepschy, Stefano Miani, Umberto Viaro,