Unknown Inputs Nonlinear Observer for an Activated Sludge Process
Joint Authors
Ladhari, Taoufik
Smida, Feten
Hadj Saïd, Salim
M’sahli, Faouzi
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-16
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This paper deals with the jointly estimation problem of unknown inputs and nonmeasured states of one altering aerated activated sludge process (ASP).
In order to provide accurate and economic concentration measures during aerobic and anoxic phases, a cascade high gain observer (HGO) approach is developed.
Only two concentrations are available; the other process’s states are assumed unavailable.
The observer converges asymptotically and it leads to a good estimation of the unavailable states which are the ammonia and substrate concentration, as well as a quite reconstruction of the unknown inputs, which are the influent ammonia and the influent substrate concentrations.
To highlight the efficiency of the proposed HGO with this MIMO system’s dynamics, simulation results are validated with experimental data.
American Psychological Association (APA)
Smida, Feten& Ladhari, Taoufik& Hadj Saïd, Salim& M’sahli, Faouzi. 2018. Unknown Inputs Nonlinear Observer for an Activated Sludge Process. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1205589
Modern Language Association (MLA)
Smida, Feten…[et al.]. Unknown Inputs Nonlinear Observer for an Activated Sludge Process. Mathematical Problems in Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1205589
American Medical Association (AMA)
Smida, Feten& Ladhari, Taoufik& Hadj Saïd, Salim& M’sahli, Faouzi. Unknown Inputs Nonlinear Observer for an Activated Sludge Process. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1205589
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205589