INTERNATIONAL RESEARCH JOURNAL OF HUMANITIES,
ENGINEERING & PHARMACEUTICAL SCIENCES

Prasenjit Suklabaidya, Subrata Das & Rituparna Bhowmik

NIT, INDIA

Tuning of PID controller for both first and second order system with time delay using SIMC technique of designing the controllers for a modified Smith predictor is proposed for integrating processes with time delay. The modified Smith predictor has two controllers i.e. set point tracking controller and load disturbance rejection controller to obtain a good set point trackand load disturbance rejection respectively. The set point tracking controller is designed using the SIMC technique. The load disturbance rejection controller is considered as a proportional-derivative (PD) controller and is designed using optimal gain margin and phase margin approaches. Rules are provided for selection of the desired closed loop tuning parameter in the SIMC technique. The technique gives significant load.