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A New Robust Controller with Applications to Bioreactors
Joint Authors
Londoño, Felipe
Rincón, Alejandro
Erazo Ordoñez, Christian Camilo
Olivar Tost, Gerard
Angulo, Fabiola
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-11
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
In this work an anaerobic digester is controlled using input-output linearization and Lyapunov-like function methods.
It is assumed that model parameters are unknown, time-varying, and bounded, and upper or lower bounds are also unknown.
To tackle the effect of input saturation, a state observer is designed.
The tracking and observer errors are defined in terms of the noisy measured output instead of ideal output, given by the mathematical model.
The design of the observer mechanism and the update laws is based on the Lyapunov-like function technique, whereas the design of the control law is based on the input-output linearization method.
In this paper two important properties of the controlled system are proven.
First, the observer error converges asymptotically to a residual set whose size is user-defined, and such convergence is not disrupted, neither by the input saturation nor by the parameter uncertainties.
Second, when the control input is nonsaturated the tracking error converges to a residual set whose size is user-defined.
The model parameter uncertainties are included to prove the convergence of errors.
Finally, a numerical example to validate the developed control is presented.
American Psychological Association (APA)
Rincón, Alejandro& Erazo Ordoñez, Christian Camilo& Londoño, Felipe& Olivar Tost, Gerard& Angulo, Fabiola. 2014. A New Robust Controller with Applications to Bioreactors. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-467184
Modern Language Association (MLA)
Rincón, Alejandro…[et al.]. A New Robust Controller with Applications to Bioreactors. Mathematical Problems in Engineering No. 2014 (2014), pp.1-18.
https://search.emarefa.net/detail/BIM-467184
American Medical Association (AMA)
Rincón, Alejandro& Erazo Ordoñez, Christian Camilo& Londoño, Felipe& Olivar Tost, Gerard& Angulo, Fabiola. A New Robust Controller with Applications to Bioreactors. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-467184
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467184