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

doi:10.1109/ELECOM49001.2020.9297027

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 proceeding › Conference contribution › peer-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 language	English
Title of host publication	2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings
Editors	Sameerchand Pudaruth, Avinash Mungur, Robert T. F. Ah King, Tulsi Pawan Fowdur, Zoran Bojkovic, Dragorad Milovanovic, Visham Hurbungs
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	1-5
Number of pages	5
ISBN (Electronic)	9781728157078
DOIs	https://doi.org/10.1109/ELECOM49001.2020.9297027
Publication status	Published - 25 Nov 2020
Event	3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Balaclava, Mauritius Duration: 25 Nov 2020 → 27 Nov 2020

Conference

Conference	3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020
Country/Territory	Mauritius
City	Balaclava
Period	25/11/20 → 27/11/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Biomass concentration
Bioreactor
Delayed measurements
Maximum allowable delay
Observer-based control

Access to Document

10.1109/ELECOM49001.2020.9297027

Cite this

Ramjug-Ballgobin, R., Busawon, K., Ah King, R. T. F., & Rughooputh, H. C. S. (2020). Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays. In S. Pudaruth, A. Mungur, R. T. F. Ah King, T. P. Fowdur, Z. Bojkovic, D. Milovanovic, & V. Hurbungs (Eds.), 2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings (pp. 1-5). Article 9297027 IEEE. https://doi.org/10.1109/ELECOM49001.2020.9297027

Ramjug-Ballgobin, R. ; Busawon, K. ; Ah King, R. T.F. et al. / Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays. 2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings. editor / Sameerchand Pudaruth ; Avinash Mungur ; Robert T. F. Ah King ; Tulsi Pawan Fowdur ; Zoran Bojkovic ; Dragorad Milovanovic ; Visham Hurbungs. Piscataway, NJ : IEEE, 2020. pp. 1-5

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title = "Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays",

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.",

keywords = "Biomass concentration, Bioreactor, Delayed measurements, Maximum allowable delay, Observer-based control",

author = "R. Ramjug-Ballgobin and K. Busawon and \{Ah King\}, \{R. T.F.\} and Rughooputh, \{H. C.S.\}",

year = "2020",

month = nov,

day = "25",

doi = "10.1109/ELECOM49001.2020.9297027",

language = "English",

pages = "1--5",

editor = "Sameerchand Pudaruth and Avinash Mungur and \{Ah King\}, \{Robert T. F.\} and Fowdur, \{Tulsi Pawan\} and Zoran Bojkovic and Dragorad Milovanovic and Visham Hurbungs",

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

publisher = "IEEE",

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note = "3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 ; Conference date: 25-11-2020 Through 27-11-2020",

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Ramjug-Ballgobin, R, Busawon, K, Ah King, RTF & Rughooputh, HCS 2020, Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays. in S Pudaruth, A Mungur, RTF Ah King, TP Fowdur, Z Bojkovic, D Milovanovic & V Hurbungs (eds), 2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings., 9297027, IEEE, Piscataway, NJ, pp. 1-5, 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020, Balaclava, Mauritius, 25/11/20. https://doi.org/10.1109/ELECOM49001.2020.9297027

Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays. / Ramjug-Ballgobin, R.; Busawon, K.; Ah King, R. T.F. et al.
2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings. ed. / Sameerchand Pudaruth; Avinash Mungur; Robert T. F. Ah King; Tulsi Pawan Fowdur; Zoran Bojkovic; Dragorad Milovanovic; Visham Hurbungs. Piscataway, NJ: IEEE, 2020. p. 1-5 9297027.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays

AU - Ramjug-Ballgobin, R.

AU - Busawon, K.

AU - Ah King, R. T.F.

AU - Rughooputh, H. C.S.

PY - 2020/11/25

Y1 - 2020/11/25

N2 - 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.

AB - 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.

KW - Biomass concentration

KW - Bioreactor

KW - Delayed measurements

KW - Maximum allowable delay

KW - Observer-based control

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DO - 10.1109/ELECOM49001.2020.9297027

M3 - Conference contribution

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

A2 - Pudaruth, Sameerchand

A2 - Mungur, Avinash

A2 - Ah King, Robert T. F.

A2 - Fowdur, Tulsi Pawan

A2 - Bojkovic, Zoran

A2 - Milovanovic, Dragorad

A2 - Hurbungs, Visham

PB - IEEE

CY - Piscataway, NJ

T2 - 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020

Y2 - 25 November 2020 through 27 November 2020

ER -

Ramjug-Ballgobin R, Busawon K, Ah King RTF, Rughooputh HCS. Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays. In Pudaruth S, Mungur A, Ah King RTF, Fowdur TP, Bojkovic Z, Milovanovic D, Hurbungs V, editors, 2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering, ELECOM 2020 - Proceedings. Piscataway, NJ: IEEE. 2020. p. 1-5. 9297027 doi: 10.1109/ELECOM49001.2020.9297027

Regulation of Biomass Concentration in Wastewater Treatment Systems under Measurement Delays

Abstract

Conference

UN SDGs

Keywords

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