Data-driven soft-sensors for online monitoring of batch processes with different initial conditions
A soft-sensing methodology applicable to batch processes operated under changeable initial conditions is presented. These cases appear when the raw materials specifications differ from batch to batch, different production scenarios should be managed, etc. The proposal exploits the capabilities of th...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/131976 |
| Acceso en línea: | https://hdl.handle.net/2117/131976 https://dx.doi.org/10.1016/j.compchemeng.2018.07.014 |
| Access Level: | acceso abierto |
| Palabra clave: | Chemical process control Soft-sensors Batch processes Ordinary Kriging Support vector machines Artificial neural networks Photo-Fenton Control de processos químics Àrees temàtiques de la UPC::Informàtica::Aplicacions de la informàtica Àrees temàtiques de la UPC::Enginyeria química |
| Sumario: | A soft-sensing methodology applicable to batch processes operated under changeable initial conditions is presented. These cases appear when the raw materials specifications differ from batch to batch, different production scenarios should be managed, etc. The proposal exploits the capabilities of the machine learning techniques to provide practical soft-sensing approach with minimum tuning effort in spite of the fact that the inherent dynamic behavior of batch systems are tracked through other online indirect measurements. Current data modeling techniques have been also tested within the proposed methodology to demonstrate its advantages. Two simulation case-studies and a pilot-plant case-study involving a complex batch process for wastewater treatment are used to illustrate the problem, to assess the modeling approach and to compare the modeling techniques. The results reflect a promising accuracy even when the training information is scarce, allowing significant reductions in the cost associated to batch processes monitoring and control. |
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