NDLI: Performance analysis of model reference robust tuned 2DoF PI controllers for over damped processes

Content Provider	IEEE Xplore Digital Library
Author	Alfaro, V.M. Vilanova, R.
Copyright Year	2012
Description	Author affiliation: Departamento de Automática, Escuela de Ingeniería Eléctrica, Universidad de Costa Rica, San José, 11501-2060 Costa Rica (Alfaro, V.M.) \|\| Departament de Telecomunicació i d'Enginyeria de Sistemes, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain (Vilanova, R.)
Abstract	The aim of the paper is to present a closed-loop performance analysis of robust tuned two-degree-of-freedom (2DoF) proportional integral (PI) controllers for over damped (first- and second-order) plus dead-time controlled processes. A closed-loop model reference optimization method was follow with non-oscillatory and under damped response targets. The analysis shows that the controlled process model parameters (high time constants ratios or high normalized dead-times) impose a constrain on the robustness obtainable when highly oscillating closed-loop responses targets are specified. The non-oscillatory response targets produce the smoothest controller outputs. The regulatory and servo-control performance (integrated absolute error and settling time) may be improved if lightly under damping responses (0.691 ≤ ζ ≤ 0.780) are allowed but affecting the control effort characteristics (its smoothness and maximum values).
Starting Page	872
Ending Page	877
File Size	285658
Page Count	6
File Format	PDF
ISBN	9781467325301
e-ISBN	9781467325318
e-ISBN	9781467325295
DOI	10.1109/MED.2012.6265748
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-03
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Damping Analytical models Process control Transfer functions Robustness Servosystems
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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