Observer Based Robust Position Control of a Hydraulic Servo System Using Variable Structure Control
Joint Authors
Derbel, Nabil
Kolsi-Gdoura, E.
Feki, Moez
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-11
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This paper deals with the position control of a hydraulic servo system rod.
Our approach considers the surface design as a case of virtual controller design using the backstepping method.
We first prove that a linear surface does not yield to a robust controller with respect to the unmatched uncertainty and perturbation.
Next, to remedy this deficiency, a sliding controller based on the second-order sliding mode is proposed which outperforms the first controller in terms of chattering attenuation and robustness with respect to parameter uncertainty only.
Next, based on backstepping a nested variable structure design method is proposed which ensures the robustness with respect to both unmatched uncertainty and perturbation.
Finally, a robust sliding mode observer is appended to the closed loop control system to achieve output feedback control.
The stability and convergence to reference position with zero steady state error are proven when the controller is constructed using the estimated states.
To illustrate the efficiency of the proposed methods, numerical simulation results are shown.
American Psychological Association (APA)
Kolsi-Gdoura, E.& Feki, Moez& Derbel, Nabil. 2015. Observer Based Robust Position Control of a Hydraulic Servo System Using Variable Structure Control. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1074587
Modern Language Association (MLA)
Kolsi-Gdoura, E.…[et al.]. Observer Based Robust Position Control of a Hydraulic Servo System Using Variable Structure Control. Mathematical Problems in Engineering No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1074587
American Medical Association (AMA)
Kolsi-Gdoura, E.& Feki, Moez& Derbel, Nabil. Observer Based Robust Position Control of a Hydraulic Servo System Using Variable Structure Control. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1074587
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074587