Setpoint-oriented robust PID tuning from a simple min-max model matching specification

Authors:
S. Alcántara;C. Pedret;R. Vilanova;W. D. Zhang
Affiliations:
Telecommunication and Systems Engineering Department, Universitat Autònoma de Barcelona, Bellaterra, Spain;Telecommunication and Systems Engineering Department, Universitat Autònoma de Barcelona, Bellaterra, Spain;Telecommunication and Systems Engineering Department, Universitat Autònoma de Barcelona, Bellaterra, Spain;Department of Automation, Shanghai Jiaotong University, Shanghai, People's Republic of China
Venue:
ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
Year:
2009

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Abstract

This communication addresses the setpoint robust PID tuning for stable First Order Processes with Time Delay (FOPTD) from a general min-max model matching formulation. In order to get a standard PID compensator, several choices are possible. This work considers the problem of finding the simplest one, based on conveniently adopting an approximate delay-free model for the FOPTD along with a particularly simple instance of the general model matching problem. The adopted methodology leads to a PID tuning just depending on a single parameter. Attending to common performance/ robustness indicators, this parameter is finally fixed in order to provide an automatic tuning just depending on the model information.