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On the synthesis of robust PID controllers for plants with structured and unstructured uncertainty
Author(s) -
Ho MingTzu,
Huang ShengTsai
Publication year - 2005
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.988
Subject(s) - pid controller , parametric statistics , control theory (sociology) , bounded function , norm (philosophy) , robust control , stability (learning theory) , computer science , mathematical optimization , mathematics , control engineering , control (management) , control system , engineering , artificial intelligence , temperature control , mathematical analysis , statistics , electrical engineering , machine learning , law , political science
In this paper, we consider the problems of synthesizing PID controllers for robust stability and performance for a given linear time‐invariant plant subject to both parametric and H ∞ ‐norm‐bounded perturbations. Using results from the area of parametric robust control, synthesis problems are converted into simultaneous stabilization of a family of complex segment polynomials. The results on H ∞ PID synthesis are then used to devise a design procedure for determining the admissible PID gain values. One of the important features of the proposed method is that it constructively characterizes the approximated set of all admissible PID controllers. This characterization can facilitate the optimal design of any additional design requirements. Copyright © 2005 John Wiley & Sons, Ltd.