Continuous-time model predictive control of food extruder

This paper presents the design and implementation of a continuous-time model predictive controller using Laguerre functions. The application is to control motor torque and specific mechanic energy of an extrusion pilot plant via manipulating screw speed and liquid pump speed. The continuous-time tra...

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Bibliographic Details
Published in:Control engineering practice 2008-10, Vol.16 (10), p.1173-1183
Main Authors: Wang, Liuping, Smith, Stephen, Chessari, Charlie
Format: Article
Language:English
Subjects:
Applied sciences
Biological and medical sciences
Computer science
control theory
systems
Continuous-time systems
Control system synthesis
Control theory. Systems
Exact sciences and technology
Food engineering
Food extruder
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
Laguerre functions
Modelling and identification
Multivariable systems
Predictive control
Product quality
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Summary:This paper presents the design and implementation of a continuous-time model predictive controller using Laguerre functions. The application is to control motor torque and specific mechanic energy of an extrusion pilot plant via manipulating screw speed and liquid pump speed. The continuous-time transfer function models are developed using the approach based on state variable filters. The predictive control system is implemented through the existing real-time Supervisory Control And Data Acquisition (SCADA) system in the extruder. Experimental results show satisfactory closed-loop performance of the predictive control system designed.
ISSN:0967-0661
1873-6939
DOI:10.1016/j.conengprac.2008.01.006