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Design and comparison of PI and boundary-based predictive controller for control of aeration in activated sludge bioreactor – Simulation and laboratory research
Abstract
In this paper, a classical PI and an on/off predictive boundary-based predictive controller (BBPC) algorithms are compared and verified using an ASM3-based model of an activated sludge system with a reactor and secondary settler. A laboratory-scale activated sludge setup is modelled in MATLAB/Simulink and verified using experimental data. BBPC and PI algorithms are compared in two scenarios of batch and continuous operation of the activated sludge process. To accommodate the on/off nature of the actuator, a pulse-width modulation (PWM) module is added to the PI controller, but a modification in the computation of control error is still needed for the PI to control the process properly. The BBPC, on the other hand, while its implementation is complex, proves to be superior in its ability to limit the control costs, the number of switching of the actuator and most importantly, in its ability to instantaneously compensate for the changes in process load.
Citations
Authors (5)
-
-
Krzysztof Stebel dr inż
- Politechnika Śląska, Katedra Automatyki i Robotyki
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Jakub Pośpiech mgr inż
- Politechnika Śląska, Katedra Automatyki i Robotyki
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
JOURNAL OF PROCESS CONTROL
no. 151,
pages 103446 - 102446,
ISSN: 0959-1524 - Language:
- English
- Publication year:
- 2025
- Bibliographic description:
- Ujazdowski T., Piotrowski R., Nocoń M., Stebel K., Pośpiech J.: Design and comparison of PI and boundary-based predictive controller for control of aeration in activated sludge bioreactor – Simulation and laboratory research// JOURNAL OF PROCESS CONTROL -Vol. 151, (2025), s.103446-102446
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jprocont.2025.103446
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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