On the PID control of systems with large delays
by Houda Ben Jmaa Derbel
International Journal of Modelling, Identification and Control (IJMIC), Vol. 2, No. 1, 2007

Abstract: This paper deals with the control of systems with pure delays. Linear first order systems with pure delays are considered. Proportional-Integral-Derivative (PID) controllers were determined by the minimisation of the settling time. The optimisation procedure used genetic algorithms. Empiric expressions of the PID parameters has been found. These expressions depend on the static gain, the time constant of the first order model and its pure delay. The obtained PID parameters give good and satisfactory performances. A discussion with respect to the model parameter was also presented. As an illustration, the PID control of a high order system was considered.

Online publication date: Sun, 01-Jul-2007

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