Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination

This paper describes a case study carried out to quantify the benefits achieved from the application of model predictive control (MPC) to regulate the pH in a brine dechlorination process. A mechanistic model of the process was developed and used to design a PI controller with feedforward compensati...

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Main Authors: Sha'Aban, Yusuf A, Tahir, Furqan, Masding, Philip W., Mack, John, Lennox, Barry
Other Authors: Massachusetts Institute of Technology. Center for International Studies
Format: Article
Published: Institute of Electrical and Electronics Engineers (IEEE) 2020
Online Access:https://hdl.handle.net/1721.1/124435
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author Sha'Aban, Yusuf A
Tahir, Furqan
Masding, Philip W.
Mack, John
Lennox, Barry
author2 Massachusetts Institute of Technology. Center for International Studies
author_facet Massachusetts Institute of Technology. Center for International Studies
Sha'Aban, Yusuf A
Tahir, Furqan
Masding, Philip W.
Mack, John
Lennox, Barry
author_sort Sha'Aban, Yusuf A
collection MIT
description This paper describes a case study carried out to quantify the benefits achieved from the application of model predictive control (MPC) to regulate the pH in a brine dechlorination process. A mechanistic model of the process was developed and used to design a PI controller with feedforward compensation. The model was also used to quantify the potential benefits of commissioning an MPC controller on the process. Following the analysis with the mechanistic model, the designed MPC scheme was applied to the actual process. Through real-time results, it is shown that the deployment of this controller led to substantial improvements in disturbance rejection capabilities when compared to the existing PI controller with lead- lag feedforward compensator. The improved disturbance rejection led to a reduction in pH variation which resulted in reduced operational costs, more reliable production, and improvement in the efficiency of the dechlorination process.
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spelling mit-1721.1/1244352022-09-29T21:56:12Z Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination Sha'Aban, Yusuf A Tahir, Furqan Masding, Philip W. Mack, John Lennox, Barry Massachusetts Institute of Technology. Center for International Studies This paper describes a case study carried out to quantify the benefits achieved from the application of model predictive control (MPC) to regulate the pH in a brine dechlorination process. A mechanistic model of the process was developed and used to design a PI controller with feedforward compensation. The model was also used to quantify the potential benefits of commissioning an MPC controller on the process. Following the analysis with the mechanistic model, the designed MPC scheme was applied to the actual process. Through real-time results, it is shown that the deployment of this controller led to substantial improvements in disturbance rejection capabilities when compared to the existing PI controller with lead- lag feedforward compensator. The improved disturbance rejection led to a reduction in pH variation which resulted in reduced operational costs, more reliable production, and improvement in the efficiency of the dechlorination process. 2020-03-30T20:43:25Z 2020-03-30T20:43:25Z 2018-03 Article http://purl.org/eprint/type/JournalArticle 2169-3536 https://hdl.handle.net/1721.1/124435 Sha’aban, Yusuf A. et al. "Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination." IEEE Access 6 (March 2018): 13418 - 13428 © 2018 IEEE http://dx.doi.org/10.1109/access.2018.2810813 IEEE Access Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) IEEE
spellingShingle Sha'Aban, Yusuf A
Tahir, Furqan
Masding, Philip W.
Mack, John
Lennox, Barry
Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination
title Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination
title_full Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination
title_fullStr Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination
title_full_unstemmed Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination
title_short Control Improvement Using MPC: A Case Study of pH Control for Brine Dechlorination
title_sort control improvement using mpc a case study of ph control for brine dechlorination
url https://hdl.handle.net/1721.1/124435
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