O PEWNYM KRYTERIUM DOBORU NASTAW CYFROWEGO REGULATORA PID.

In the paper a new simple criterion for determining the parameters of a digital PID controller for the set point changes is proposed. The criterion proposed makes it possible to determine the parameters of a digital PID controller designed to control the first order time lag plant with pure delay under assumption that this delay is small enough. On the basis of simulation studies carried out, results obtained for the criterion proposed are compared with those corresponding to the Ziegler-Nichols and Foellinger criteria.