SciELO - Scientific Electronic Library Online

 
vol.1 issue1Development and testing tool for paper handling and/or printer devicesAutomatic system for localization and recognition of vehicle plate numbers author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Journal of applied research and technology

On-line version ISSN 2448-6736Print version ISSN 1665-6423

J. appl. res. technol vol.1 n.1 Ciudad de México Apr. 2003

 

Control of a biomass combustor using the general Smith Predictor

 

R. Ramírez1 & A. Aguado2

 

1 CIATEQ (México). E-mail: raulrmzl@ieee.org

2 ICIMAF (Cuba). E-mail: aguado9941@yahoo.es

 

Received: May 4th 2001.
Accepted: March 5th 2002.

 

ABSTRACT

This paper proposes a modification to the classic Smith Predictor, known since several decades as an effective control method for the pure delay noxious effect in the control loop systems. The modification consists in the use of a high order model for the system, using an idea of Strejc, instead of the first order model with delay as was proposed by Smith. This allows better approximation to high order systems. It is presented an algorithm to calculate the Strejc model of the system to be controlled, based on its response to a unit step disturb.

Keywords: Biomass Combustor, Control, Smith Predictor.

 

RESUMEN

Este trabajo propone una modificación al clásico Predictor de Smith, conocido desde hace varias décadas como un método de control muy efectivo para contrarrestar el efecto nocivo del retardo puro en los lazos de control. La modificación consiste en el uso de un modelo de alto orden para el sistema, usando una idea de Strejc, en lugar del modelo de primer orden con retardo propuesto Smith. Esto permite una mejor aproximación para procesos de alto orden. Se presenta un algoritmo para calcular el modelo de Strejc del sistema a controlar, a partir de la respuesta a una perturbación en forma de escalón.

 

DESCARGAR ARTÍCULO EN FORMATO PDF

 

References

[1] Aguado A., 2000, Temas de Identificación y Control Adaptable, Edición del ICIMAF, La Habana.         [ Links ]

[2] Strejc V., 1960, Approximate determination of the control characteristics of an aperiodic response process, utomatisme.         [ Links ]

[3] Smith, O.J.M. 1959, A controller to overcome dead time. ISA J., Vol. 6 (2), page 28.         [ Links ]

[4] Palmer, Z. J., Shinnar, R. 1979, Design of Sampled data controllers, Ind. Eng. Chem. Process Des. Dev., V. 18 N° 1.         [ Links ]

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License