CompensatorTuning for Didturbance Rejection Associated with Delayed Double Integrating Processes, Part II: Feedback Lag-lead First-order Compensator

This paper investigates using a feedback lag-lead first-order compensator to control a delayed double integrating process for the purpose of disturbance rejection. The compensator has three parameters to be tuned to provide an optimal performance for the closed-loop control system. The MATLAB control and optimization toolboxes are used to tune the compensator using five different error-based objective functions. The feasibility of using the feedback lag-lead first-order compensator is assigned through comparison with using a feedback PD compensator for the same process. It is shown that that the compensator under study can not compete with the feedback PD compensator. Keywords—Feedback lag-lead first-order compensator; delayed double integrating process; disturbance rejection; compensator tuning; control system performance.