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ON-LINE IDENTIFICATION OF INTERACTING TWO- TANK SYSTEM
Korean Journal of Chemical Engineering, July 1996, 13(4), 422-426(5), 10.1007/BF02705974
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Abstract
In order to demonstrate the effectiveness of the process identification algorithm, on- line parameter estimator is evaluated experimentally by using two-tank system with interac- tion. On-line parameter estimator used in this paper is based on a recursive parameter estimation algorithm. MIMO linear, bilinear and quadratic models based on ARMA model are used to identify two-tank system. A quadratic model for two-tank system with interaction is developed to confirm the propriety of MIMO quadratic model used in identification of two- tank system. The results of on-line identification experiments on the two-tank system show that the estimated parameters of each model converge and the output tracking errors are bounded by disturbance bound. But, the quadratic model showed the best convergence.
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Kubrusly CS, Int. J. Control, 33, 291 (1981)
Landau ID, IEEE Trans. Autom. Control, AC21, 194 (1976)
MacDonald KA, McAvoy TJ, AIChE J., 32, 75 (1986)
Schoukens J, Pintelon R, Vanhamme H, Automatica, 30(7), 1153 (1994)
Solbrand G, Ahlen A, Ljung L, Int. J. Control, 41, 177 (1985)
Yeo YK, Williams DC, IEEE Trans. Autom. Control, AC31, 1071 (1986)
