Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes
Finding the optimal operating region of chemical processes is an inevitable step toward improving economic performance. Usually the optimal operating region is situated close to process constraints related to product quality or process safety requirements. Higher profit can be realized only by assur...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/801602 |
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| _version_ | 1832558902399467520 |
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| author | László Dobos András Király János Abonyi |
| author_facet | László Dobos András Király János Abonyi |
| author_sort | László Dobos |
| collection | DOAJ |
| description | Finding the optimal operating region of chemical processes is an inevitable step toward improving economic performance. Usually the optimal operating region is situated close to process constraints related to product quality or process safety requirements. Higher profit can be realized only by assuring a relatively low frequency of violation of these constraints. A multilevel stochastic optimization framework is proposed to determine the optimal setpoint values of control loops with respect to predetermined risk levels, uncertainties, and costs of violation of process constraints. The proposed framework is realized as direct search-type optimization of Monte-Carlo simulation of the controlled process. The concept is illustrated throughout by a well-known benchmark problem related to the control of a linear dynamical system and the model predictive control of a more complex nonlinear polymerization process. |
| format | Article |
| id | doaj-art-e41da1831ca94261a391860a73d5cb82 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-e41da1831ca94261a391860a73d5cb822025-02-03T01:31:26ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/801602801602Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical ProcessesLászló Dobos0András Király1János Abonyi2Department of Process Engineering , University of Pannonia, Egyetem Street 10, 8200 Veszprém, HungaryDepartment of Process Engineering , University of Pannonia, Egyetem Street 10, 8200 Veszprém, HungaryDepartment of Process Engineering , University of Pannonia, Egyetem Street 10, 8200 Veszprém, HungaryFinding the optimal operating region of chemical processes is an inevitable step toward improving economic performance. Usually the optimal operating region is situated close to process constraints related to product quality or process safety requirements. Higher profit can be realized only by assuring a relatively low frequency of violation of these constraints. A multilevel stochastic optimization framework is proposed to determine the optimal setpoint values of control loops with respect to predetermined risk levels, uncertainties, and costs of violation of process constraints. The proposed framework is realized as direct search-type optimization of Monte-Carlo simulation of the controlled process. The concept is illustrated throughout by a well-known benchmark problem related to the control of a linear dynamical system and the model predictive control of a more complex nonlinear polymerization process.http://dx.doi.org/10.1100/2012/801602 |
| spellingShingle | László Dobos András Király János Abonyi Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes The Scientific World Journal |
| title | Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes |
| title_full | Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes |
| title_fullStr | Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes |
| title_full_unstemmed | Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes |
| title_short | Economic-Oriented Stochastic Optimization in Advanced Process Control of Chemical Processes |
| title_sort | economic oriented stochastic optimization in advanced process control of chemical processes |
| url | http://dx.doi.org/10.1100/2012/801602 |
| work_keys_str_mv | AT laszlodobos economicorientedstochasticoptimizationinadvancedprocesscontrolofchemicalprocesses AT andraskiraly economicorientedstochasticoptimizationinadvancedprocesscontrolofchemicalprocesses AT janosabonyi economicorientedstochasticoptimizationinadvancedprocesscontrolofchemicalprocesses |