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Supervisory control design based on hybrid systems and fuzzy events detection. Application to an oxichlorination reactor |
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| Authors: | Altamiranda Edmary Torres Horacio Colina Eliezer Chacón Edgar |
| Affiliation: | aGerencia Técnica, Automatización, PDVSA PEQUIVEN, El Tablazo, Zulia, Venezuela bGerencia de Producción, Planta de MVC, PDVSA PEQUIVEN, El Tablazo, Zulia, Venezuela cGIC-Departamento de Control, Escuela de Ingeniería de Sistemas, Universidad de Los Andes, Mérida, Venezuela dLaSDAI-Departamento de Computación, Escuela de Ingeniería de Sistemas, Universidad de Los Andes, Mérida, Venezuela |
| Abstract: | This paper presents a supervisory control scheme based on hybrid systems theory and fuzzy events detection. The fuzzy event detector is a linguistic model, which synthesizes complex relations between process variables and process events incorporating experts' knowledge about the process operation. This kind of detection allows the anticipation of appropriate control actions, which depend upon the selected membership functions used to characterize the process under scrutiny. The proposed supervisory control scheme was successfully implemented for an oxichlorination reactor in a vinyl monomer plant. This implementation has allowed improvement of reactor stability and reduction of raw material consumption. |
| Keywords: | Discrete events systems Reactive systems Finite state machines Hybrid systems Fuzzy logic Supervisory control systems implementation |
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