Novel tuning rules for stable dead-time processes with dominant left half-plane zero

This paper presents a modification of recently reported general rules for designing complex controllers. The presented approach is here applied to control stable processes including dead-time with a dominant left half-plane zero. The introduced modification enables improvements in the form of better disturbance rejection and smaller IAE (Integrated Absolute Error). The solution to design procedure leads to practically realizable controllers. The effectiveness of the proposed method is verified via numerical simulations on several examples resulting into better performance and robustness indices of the closed-loop system compared to recently reported procedure which does not take into consideration the effect of dominant left half-plane zero.