Experimental Validation of AMIGO Based PID for a Binary Distillation Column

Abstract

Distillation is highly energy consuming process in industrial application concern. This paper focuses on energy consumption of an actuator through appropriate control design for a binary distillation column. Temperature control of binary distillation column is challenging because of existence of interaction between the variables. Independent variables of the process are fast acting (Reflux flow) and slow acting (Reboiler) with respect to process variables (Tray temperatures). Energy consumption of manipulated variable depends on efficient tuning of controller. AMIGO based PID controller design is implemented in this paper to show the optimal energy utilization of actuator. Performance analysis has been carried out to validate the control structure. It is been analyzed that based on the speed and quality requirement of the process, set of controller values can be obtained and best set of PID can be selected for real time implementation. Results depicts the efficiency of control scheme with performance index.