Control Method for On‐Demand Operation of Open‐Channel Flow
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Volume 119, Issue 2
Abstract
The basic unit in a free‐surface controlled water distribution network could be composed by a single reach with upstream and downstream gates. Different methods have been proposed in the literature to control water level, volume, or discharge in the reach. All of them use the same basic intrinsic assumption about the controlled reach: Every magnitude of intake and offtake of the reach has to be known. Consequently, unknown disturbances cannot be compensated. This paper proposes a new method with the purpose of manipulating the upstream gate to make the downstream discharge follow the demanded set point. It is formulated by means of a discrete‐time algorithm that computes, at each sampling instant, the control upstream gate opening using the measurement of the water levels at both sides of the gates as feedback information. The method allows the presence of unknown disturbances in the reach in the form of intake or offtake discharges, and it is able to drive the downstream discharge to the demanded set point and maintain it in spite of them.
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References
1.
Balogun, O. S., Hubbard, M., and De Vries, J. J. (1988). “Automatic control of canal flow using linear quadratic regulator theory.” J. Hydr. Engrg., ASCE, 114(1), 75–102.
2.
Bonet, L. (1989). “Automatic manipulation of control gates in open‐channels,” Minor thesis, School of Civ. Engrg., Barcelona, Spain (in Spanish).
3.
Burt, C. M. (1982). “Regulation of sloping canals by automatic downstream control,” PhD thesis, Utah State Univ., Logan, Utah.
4.
Cheverau, G., and Schwartz‐Benezeth, S. (1987). “BIVAL system for downstream control.” Proc. Planning, Operation, Rehabilitation and Automation of Irrigation Water Delivery Systems Symp., ASCE, New York, N.Y., 155–163.
5.
Clemmens, A. J., and Replogle, J. A. (1989). “Control of irrigation canal networks.” J. Irrig. Drain. Engrg., ASCE, 115(1), 96–110.
6.
Coeuret, C. (1984). “Remote control system driven by computer: The regulation dynamique of the Canal de Provence.” Hydrosoft'84, C. Brebbia, C. Maksimovic, and M. Radojkovic, eds., Elsevier, London, England.
7.
Erlich, M., and Le François, O. (1987). “Automatic control in canal regulation. Analysis of some pitfalls.” Topics in hydraulic modelling, J. A. Cunge and P. Ackers, eds., Int. Association for Hydr. Res. (IAHR), 402–407.
8.
Falvey, H. T. (1987). “Philosophy and implementation of gate stroking.” Proc. Planning, Operation, Rehabilitation and Automation of Irrigation Water Delivery Systems Symp., ASCE, New York, N.Y., 176–179.
9.
Filipović, V., and Milosević, Z. (1989). “DYN method for optimal control of water flow in open channels.” J. Irrig. Drain. Engrg., ASCE, 115(6), 973–981.
10.
Franklin, G. F., Powell, J. D., and Workman, M. L. (1990). Digital control of dynamical systems. 2nd Ed., Addison‐Wesley, Reading, Mass.
11.
Gómez, M., Rodellar, J., and Quer, J. L. (1989). “Real time control of discharge deliveries in open‐channels.” Computational modelling and experimental methods in hydraulics, C. Maksimovic and M. Radojkovic, eds., Elsevier Appl. Sci., London, England, 332–341.
12.
Harder, J. A., Shand, M. J., and Buyalski, C. P. (1970). “Automatic downstream control of canal check gates by the hydraulic filter level offset (HyFLO) method.” Proc. 8th Congress of the International Commission on Irrigation and Drainage, 28.2.363–28.2.386.
13.
Martín Sánchez, J. M. (1976). “Adaptive‐predictive control system.” USA Patent, No. 4,197,576.
14.
Papageorgiu, M., and Messmer, A. (1989). “Flow control in a long river stretch.” Automatica, 25(2), 177–183.
15.
Ploss, L. (1987). “Canal automation using the electronic filter level offset (EL‐FLO) method.” Proc. Planning, Operation, Rehabilitation and Automation of Irrigation Water Delivery Systems Symp., ASCE, New York, N.Y., 164–175.
16.
Quer, J. L. (1988). “Automatic control of channel flow,” Minor thesis, School of Civ. Engrg., Barcelona, Spain (in Spanish).
17.
Rodellar, J., Barbat, A. H., and Martin Sánchez, J. M. (1987). “Predictive control of structures.” J. Engrg. Mech., ASCE, 113(6), 797–812.
18.
Rodellar, J., Gómez, M., and Martín Vide J. P. (1989). “Stable predictive control of open‐channel flow.” J. Irrig. Drain. Engrg., ASCE, 115(4), 701–713.
19.
Wylie, E. B. (1969). “Control of transient free surface flow.” J. Hydr. Div., ASCE, 95(1), 347–361.
20.
Zimbelman, D. D., and Bedworth, D. D. (1983). “Computer control for irrigation canal system.” J. Irrig. Drain. Engrg., ASCE, 109(1), 43–59.
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Copyright © 1993 American Society of Civil Engineers.
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Received: Oct 3, 1990
Published online: Mar 1, 1993
Published in print: Mar 1993
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