Popis: |
Several methods, which have been suggested for tuning PI controller parameters by obtaining the centroid of the stability boundary locus, can be found in the literature. However, all those methods rely on graphical plottings which are time consuming. Here, a new analytical approach is introduced to find centroid of the stability region for PI controllers to control time delay integrating processes. For this purpose, it is assumed that time delay integrating process can be modelled by integrating plus first order plus dead-time (IFOPDT) model. The suggested method cancels the necessity of plotting the stability region. Simulation examples were performed to ensure the efficiency of the suggested method. |