The well known laboratory Quadruple-Tank Process (QTP) has been introduced in the laboratories of many schools around the world as it is ideally suited to illustrate concepts in multivariable control. In this paper the QTP is extended to include independent multivariable dead times (DTs) and their effects on the properties of the QTP are studied. DTs are very common in many various processes and make the control of the QTP more interesting and challenging. The addition of DTs may introduce infinite, finite or not any number of non-minimum-phase (NMP) zeros. As shown in the paper it depends on a particular combination of the multivariable DTs. The conditions for each case are stated and the location and behavior of the zeros closest to the imaginary axis due to the DTs are specified. Other properties of the QTP with DTs as the output real NMP zero directions and the decentralized integral controllability of the process are discussed too. Also, a novel laboratory QTP with DTs is described.
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ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
July 7–9, 2008
Haifa, Israel
Conference Sponsors:
- International
ISBN:
978-0-7918-4836-4
PROCEEDINGS PAPER
Effect of Multivariable Dead Times on the Properties of the Quadruple-Tank Process
Zalman J. Palmor,
Zalman J. Palmor
Technion-Israel Institute of Technology, Haifa, Israel
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Dmitry Shneiderman
Dmitry Shneiderman
Technion-Israel Institute of Technology, Haifa, Israel
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Zalman J. Palmor
Technion-Israel Institute of Technology, Haifa, Israel
Dmitry Shneiderman
Technion-Israel Institute of Technology, Haifa, Israel
Paper No:
ESDA2008-59033, pp. 375-382; 8 pages
Published Online:
July 6, 2009
Citation
Palmor, ZJ, & Shneiderman, D. "Effect of Multivariable Dead Times on the Properties of the Quadruple-Tank Process." Proceedings of the ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Automotive Systems; Bioengineering and Biomedical Technology; Computational Mechanics; Controls; Dynamical Systems. Haifa, Israel. July 7–9, 2008. pp. 375-382. ASME. https://doi.org/10.1115/ESDA2008-59033
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