Characterization of all robust PID controllers for belt conveyor system via corrected polynomial stabilization

Polynomial stabilization method has important feature in PID tuning. It computationally characterizes the entire set of admissible PID gains for various control system configurations. This paper shows a correction is needed in order to find all robust PID region controllers that satisfy a given robust performance. We also provides selection procedure for searching the best PID gains controllers in the obtained PID gains region. Then, the corrected polynomial stabilization algorithm is applied on a short DC servo-driven belt conveyor system. Here, we suggest a simple model for the system. The admissible PID gains are showed both in 2D plot at specified value of k _p, and in 3D plot for various values of k _p. Hence, this paper provides a viable and practical means for modeling and robust PID tuning for a short DC servo-driven belt conveyor system.