Design of 2-DOF PI controller for integrating processes

Magnitude Optimum Multiple Integration (MOMI) tuning method results in a relatively fast and stable closed-loop responses for a large class of process models. The method calculates the PI controller parameters from the process model or from the process open-loop or the closed-loop time responses. Recently, the MOMI tuning method has been extended for integrating processes. In this paper, the tuning method is extended to 2-DOF PI controllers with reference weighting factor. The proposed method is tested on several process models and compared to some of existing PI controller tuning methods for integrating processes.