Networked Control Systems: control structures with bandwidth limitations
by Vicente Casanova, Julian Salt, Angel Cuenca, Ricardo Piza
International Journal of Systems, Control and Communications (IJSCC), Vol. 1, No. 3, 2009

Abstract: The aim of this paper is to propose a control to be used in Networked Control Systems. A periodic model of the plant, as it is seen by the controller, is proposed. It can be converted into a multivariable model and used to design a multivariable controller. A second structure becomes a periodic control that uses the plant to supply the lost information. Non linear behaviour, periodicity and any other irregularities can be included in the model. The control is tested on the control of X and Y axis from a model crane, using Profibus-DP to close the loop.

Online publication date: Thu, 09-Apr-2009

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