Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays

R. Ramjug-Ballgobin, K. Busawon, R. T.F. Ah King, H. C.S. Rughooputh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

This paper proposes an observer-based control system to estimate and control biomass concentration in a simple microbial system under known output delays. More precisely, these delays are represented by time lags in the measurement of substrate concentration. We employ a feedback linearising controller that has previously been developed for a system without measurement delay. In the present work, the delay is applied to the controller and the maximum allowable delay that maintains stability is computed. Next, a nonlinear observer is proposed to predict the biomass concentration. The stability of the overall closed-loop feedback system incorporating the observer and the controller is analysed. Simulation study has revealed that the combination of the observer and controller provided a satisfactory response and was successful in regulating the biomass concentration. Finally some conclusions are drawn.

Original languageEnglish
Title of host publication2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings
EditorsSameerchand Pudaruth, Avinash Mungur, Robert T. F. Ah King, Tulsi Pawan Fowdur, Zoran Bojkovic, Dragorad Milovanovic, Visham Hurbungs
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781728157078
DOIs
Publication statusPublished - 25 Nov 2020
Event3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Balaclava, Mauritius
Duration: 25 Nov 202027 Nov 2020

Publication series

Name2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings

Conference

Conference3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020
Country/TerritoryMauritius
CityBalaclava
Period25/11/2027/11/20

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