Model Predictive Control of the Waste Water Treatment Plant Based on the Benchmark Simulation Model No.1-BSM1
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Publication Details
Author list: Cristea VM, Pop C, Agachi PS
Publisher: Elsevier: Monograph Series
Place: AMSTERDAM
Publication year: 2008
Journal: Computer Aided Chemical Engineering (1570-7946)
Journal acronym: COMPUT-AIDED CHEM EN
Volume number: 25
Start page: 441
End page: 446
Number of pages: 6
eISBN: 978-0-444-53227-5
ISSN: 1570-7946
Languages: English-Great Britain (EN-GB)
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Abstract
Control of the WWTP is not a trivial task since the unit is nonlinear, features large time constants and delays, and interaction between variables is important. Model Predictive Control algorithm is a good candidate for such demanding task. The paper presents the results for controlling the WWTP using MPC. The Benchmark Simulation Model No. 1-BSM1 has been used as a standard for performance assessment and evaluation of the control strategy. Control of the Dissolved Oxygen in the aerated reactors and nitrate level in the anoxic compartments has been performed using the MPC control strategy. Air flow rate in the aerated reactors and internal recycle flow have been chosen as manipulated variables. The obtained results show the incentives of MPC over classical PI control with respect to overshoot and time response. A combined feedback-feedforward MPC scheme is also proposed for disturbance rejection and its incentives are shown.
Keywords
BSM1, MPC, WWTP
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