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Dynamic multi-objective optimization and multi-units linear active disturbance rejection control for wastewater treatment processes.
- Source :
-
Control Engineering Practice . Oct2023, Vol. 139, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Wastewater treatment processes (WWTPs) are complex nonlinear systems with strong nonlinearity among many treatment units and disturbances including weather conditions, uncertainties, and time-varying dynamics. This paper studies the multi-objective and multi-units linear active disturbance rejection control for WWTPs to lower the overall cost index and enhance the effluent quality index simultaneously. A multi-objective optimization method using the multi-strategy mutation and the adaptive mechanism is employed to dynamically optimize set points. Then, multiple-units linear active disturbance rejection controllers are designed to achieve tracking control for dissolved oxygen concentration (including 3-5 units) and nitrate level with unmeasurable disturbances based on the optimal set points. The comparison experiments tested on the benchmark simulation model No. 1 demonstrate that the proposed method can improve the tracking performance and achieve a significant improvement in reducing the overall cost index and the effluent quality index. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WASTEWATER treatment
*EFFLUENT quality
*PRICE indexes
*WEATHER
*POINT set theory
Subjects
Details
- Language :
- English
- ISSN :
- 09670661
- Volume :
- 139
- Database :
- Academic Search Index
- Journal :
- Control Engineering Practice
- Publication Type :
- Academic Journal
- Accession number :
- 171828111
- Full Text :
- https://doi.org/10.1016/j.conengprac.2023.105650