A control lab experiment is presented where the key issue is the modelling of a coupled tank system using a suitable combination of phenomenological knowledge and basic least-squares techniques. This approach can be followed without major difficulties by undergraduate students having no prior knowledge of modelling techniques. The paper includes an outline for the lab experiment.
LjungL., System Identification: Theory for the User (Prentice Hall, Upper Saddle River, New Jersey, 1999).
2.
PintelonR. and SchoukensJ., System Identification: A Frequency Domain Approach (Wiley-IEEE Press, New York, 2001).
3.
OgataK., System Dynamics (Prentice Hall, Englewood Cliffs, New Jersey, 2003).
4.
ÅströmK. J. and ÖstbergA., ‘A teaching laboratory for process control’, IEEE Control Systems Magazine, 6 (1986), 5.
5.
BaddouA.TadeoF. and BenzaouiaA., ‘Two coupled-tanks level regulation with constraints on the control and the output’ in CamachoE.BasañezL. and de la PuenteJ. A. (Eds), Proc. 15th Triennial IFAC World Congress, Barcelona, 21–26 July, 2002 (Elsevier, Amsterdam).
6.
HouM.XiongY. and PattonR., ‘Observer design for a three-tank system’ in CamachoE.BasañezL. and de la PuenteJ. A. (Eds), Proc. 15th Triennial IFAC World Congress, Barcelona, 21–26 July, 2002 (Elsevier, Amsterdam).
7.
JohanssonK. H., ‘The quadruple-tank process: A multivariable laboratory process with an adjustable zero’, IEEE Trans. Control Syst. Technol., 8 (2000), 3.
8.
PickhardtR. and SchmidC., ‘Nonlinear adaptive predictive control strategy applied to an interconnected tank system’ in CamachoE.BasañezL. and de la PuenteJ. A. (Eds), Proc. 15th Triennial IFAC World Congress, Barcelona, 21–26 July, 2002 (Elsevier, Amsterdam).
9.
RickebuschE. and CraigI., ‘PID tuning for a multivariable plant using Taguchi-based methods’, in CamachoE.BasañezL. and de la PuenteJ. A. (Eds), Proc. 15th Triennial IFAC World Congress, Barcelona, 21–26 July, 2002 (Elsevier, Amsterdam).
10.
PriestleyM., Spectral Analysis and Time Series (Academic Press, London, 1981).
11.
OppenheimA. V.SchaferR. and BuckJ., Discrete-Time Signal Processing (Prentice Hall, Englewood Cliffs, New Jersey, 1999).
