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Robustness analysis of a PI controller for a hydraulic actuator

AuthorsPuglisi, Lisandro; Saltarén, Roque ; García Cena, Cecilia ; Banfield, Ilka A.
KeywordsSmall gain theorem
Servo-hydraulic actuator
PI controller
Issue Date2015
PublisherPergamon Press
CitationControl Engineering Practice 43: 94- 108 (2015)
Abstract© 2015 Elsevier Ltd. In this work the authors address the problem of robustness of the classic PI controller implemented in a Hydraulic Servo-Actuator (HSA), by presenting a strategy based on the definition of a linear model of the system and the identification of its parameters for different working points. The variation of these parameters is considered as a measure of parametric uncertainty of the linear model. These uncertainties along with the definition of a nominal plant are used to analyze the robustness of the system implementing the Small Gain Theorem. Theoretical and experimental results show that a PI controller can provide robustness to the HSA.
Identifiersdoi: 10.1016/j.conengprac.2015.06.010
issn: 0967-0661
Appears in Collections:(CAR) Artículos
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