Improved design of the weighting matrices for the S/KS/T mixed sensitivity problem-application to a multivariable thermodynamic system

This paper describes an improved design procedure for the weighting matrices of the S/KS/T mixed sensitivity problem. Using low-order models, as usual in industrial processes, and based on recent works, the new design will allow to significantly reduce the time response overshoots, without degrading...

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Bibliographic Details
Published in:IEEE transactions on control systems technology 2006-01, Vol.14 (1), p.82-90
Main Authors: Ortega, M.G., Vargas, M., Castano, F., Rubio, F.R.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Computer science
control theory
systems
Control application
Control system synthesis
Control systems
Control theory. Systems
Design engineering
Design methodology
Exact sciences and technology
Frequency
Industrial control
Mathematical analysis
Mathematical models
Matrices
Matrix methods
Methodology
mixed sensitivity problem
multivariable
Process control
Process control. Computer integrated manufacturing
Temperature control
Thermodynamics
Time factors
Weight control
Weighting
weighting matrix
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Summary:This paper describes an improved design procedure for the weighting matrices of the S/KS/T mixed sensitivity problem. Using low-order models, as usual in industrial processes, and based on recent works, the new design will allow to significantly reduce the time response overshoots, without degrading the speed of these responses. Weighting matrices are designed in such a way that they depend only on a few parameters, which can be easily adjusted by means of the proposed methodology. Experimental results in the simultaneous control of two temperatures of a pilot plant (which constitutes a typical example of industrial process) are included in order to validate the proposed methodology.
ISSN:1063-6536
1558-0865
DOI:10.1109/TCST.2005.860518