Abstract
Guaranteed dominant pole placement problem has already been considered in the literature (Journal of Process Control 19(2009):349-352). For the systems that are higher-order or have dead-time, pole placement procedure with PID controllers via modified Nyquist plot and root-locus has been proposed. Based on this idea, the dominant pole placement problem with discrete-PID controllers in zdomain is studied since it is important to take advantage of discrete-time domain representation during the pole placement procedure for time-delay systems. It is shown that modified Nyquist plot method is still valid in discrete-time domain and it is possible to find relevant discrete-PID controller parameters. Controller zeros are also considered in the study, since in the closed-loop controller zeros can disrupt the dominance. Success of the method demonstrated on example transfer functions.
Original language | English |
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Title of host publication | 19th IFAC World Congress IFAC 2014, Proceedings |
Editors | Edward Boje, Xiaohua Xia |
Publisher | IFAC Secretariat |
Pages | 3122-3127 |
Number of pages | 6 |
ISBN (Electronic) | 9783902823625 |
DOIs | |
Publication status | Published - 2014 |
Event | 19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 - Cape Town, South Africa Duration: 24 Aug 2014 → 29 Aug 2014 |
Publication series
Name | IFAC Proceedings Volumes (IFAC-PapersOnline) |
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Volume | 19 |
ISSN (Print) | 1474-6670 |
Conference
Conference | 19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 |
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Country/Territory | South Africa |
City | Cape Town |
Period | 24/08/14 → 29/08/14 |
Bibliographical note
Publisher Copyright:© IFAC.
Keywords
- Discrete-time control
- Nyquist plot
- PID controllers
- Pole placement
- Process control