Temperature control of a crude oil preheating furnace using a modified Smith predictor improved with a disturbance rejection term

R. Rivas-Perez, V. Feliu-Batlle, F. J. Castillo-Garcia, I. Benitez-Gonzalez

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

9 Citas (Scopus)

Resumen

This paper proposes a two degrees of freedom modified Smith predictor scheme for controlling the outlet temperature uniformity of a crude oil preheating furnace. A reliable mathematical model for describing the nominal process dynamics has been obtained from an identification procedure using realtime field data. This procedure yields a second order model with a dominant time-delay term (significantly higher than the time constant values). Moreover, disturbances have been identified as step responses of first order processes. A PI controller embedded in a modified Smith predictor scheme is therefore designed. A disturbance rejection term is designed for this scheme. This term is designed using a new methodology which reduces the effect of unknown disturbances on the process output. Simulations show that our proposal significantly outperforms the one degree of freedom Smith predictor and a well-known two degrees of freedom Smith predictor.

Idioma originalInglés
Título de la publicación alojada19th IFAC World Congress IFAC 2014, Proceedings
EditoresEdward Boje, Xiaohua Xia
EditorialIFAC Secretariat
Páginas5760-5765
Número de páginas6
ISBN (versión digital)9783902823625
DOI
EstadoPublicada - 2014
Publicado de forma externa
Evento19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 - Cape Town, Sudáfrica
Duración: 24 ago. 201429 ago. 2014

Serie de la publicación

NombreIFAC Proceedings Volumes (IFAC-PapersOnline)
Volumen19
ISSN (versión impresa)1474-6670

Conferencia

Conferencia19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014
País/TerritorioSudáfrica
CiudadCape Town
Período24/08/1429/08/14

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