Tuning of PI Controller using Integral Performance Criteria for FOPTD System

Large amount of the chemical processes having with significant noise in the measured variables can be controlled by using the proportional-integral i.e PI controllers. It is always important to determine the optimum control parameters of these PI controllers depending on the different objectives. This paper present the tuning of the PI controller for set point change of first order plus time delay i.e FOPTD system with the different performance criteria such as integral of absolute of the error (IAE), integral of the squared of the error (ISE), integral of the time absolute of the error (ITAE).