A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process
A comparative study of Model Predictive Control (MPC) using active-set method and interior point methods is proposed as a control technique for highly non-linear pH process. The process is a strong acid-strong base system. A strong acid of hydrochloric acid (HCl) and a strong base of sodium hydroxid...
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| Format: | Article |
| Language: | English |
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Chemical Engineering Department, College of Engineering, Syiah Kuala University
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/56931/ http://psasir.upm.edu.my/id/eprint/56931/1/A%20comparative%20study%20of%20applying%20active-set%20and%20interior%20point%20methods%20in%20MPC%20for%20controlling%20nonlinear%20pH%20process.pdf |
| _version_ | 1848853224442822656 |
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| author | S., Syafiie Chia, Yaw Kwan |
| author_facet | S., Syafiie Chia, Yaw Kwan |
| author_sort | S., Syafiie |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A comparative study of Model Predictive Control (MPC) using active-set method and interior point methods is proposed as a control technique for highly non-linear pH process. The process is a strong acid-strong base system. A strong acid of hydrochloric acid (HCl) and a strong base of sodium hydroxide (NaOH) with the presence of buffer solution sodium bicarbonate (NaHCO3) are used in a neutralization process flowing into reactor. The non-linear pH neutralization model governed in this process is presented by multi-linear models. Performance of both controllers is studied by evaluating its ability of set-point tracking and disturbance-rejection. Besides, the optimization time is compared between these two methods; both MPC shows the similar performance with no overshoot, offset, and oscillation. However, the conventional active-set method gives a shorter control action time for small scale optimization problem compared to MPC using IPM method for pH control. |
| first_indexed | 2025-11-15T10:50:34Z |
| format | Article |
| id | upm-56931 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:50:34Z |
| publishDate | 2014 |
| publisher | Chemical Engineering Department, College of Engineering, Syiah Kuala University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-569312017-09-06T09:18:33Z http://psasir.upm.edu.my/id/eprint/56931/ A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process S., Syafiie Chia, Yaw Kwan A comparative study of Model Predictive Control (MPC) using active-set method and interior point methods is proposed as a control technique for highly non-linear pH process. The process is a strong acid-strong base system. A strong acid of hydrochloric acid (HCl) and a strong base of sodium hydroxide (NaOH) with the presence of buffer solution sodium bicarbonate (NaHCO3) are used in a neutralization process flowing into reactor. The non-linear pH neutralization model governed in this process is presented by multi-linear models. Performance of both controllers is studied by evaluating its ability of set-point tracking and disturbance-rejection. Besides, the optimization time is compared between these two methods; both MPC shows the similar performance with no overshoot, offset, and oscillation. However, the conventional active-set method gives a shorter control action time for small scale optimization problem compared to MPC using IPM method for pH control. Chemical Engineering Department, College of Engineering, Syiah Kuala University 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/56931/1/A%20comparative%20study%20of%20applying%20active-set%20and%20interior%20point%20methods%20in%20MPC%20for%20controlling%20nonlinear%20pH%20process.pdf S., Syafiie and Chia, Yaw Kwan (2014) A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process. Jurnal Rekayasa Kimia dan Lingkungan, 10 (1). pp. 15-24. ISSN 1412-5064; ESSN: 2356-1661 http://www.jurnal.unsyiah.ac.id/RKL/article/view/2168 |
| spellingShingle | S., Syafiie Chia, Yaw Kwan A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process |
| title | A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process |
| title_full | A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process |
| title_fullStr | A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process |
| title_full_unstemmed | A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process |
| title_short | A comparative study of applying active-set and interior point methods in MPC for controlling nonlinear pH process |
| title_sort | comparative study of applying active-set and interior point methods in mpc for controlling nonlinear ph process |
| url | http://psasir.upm.edu.my/id/eprint/56931/ http://psasir.upm.edu.my/id/eprint/56931/ http://psasir.upm.edu.my/id/eprint/56931/1/A%20comparative%20study%20of%20applying%20active-set%20and%20interior%20point%20methods%20in%20MPC%20for%20controlling%20nonlinear%20pH%20process.pdf |