COMPARISON OF PID CONTROLLER TUNING METHOD FOR FLOW PROCESS

Instrumentation predominantly involves measurement of various variables both in process and manufacturing industries. Flow measurement plays an important role in every sector of our day to day life starting from a water dispenser in our home to a large scale solution mixture flow measurement in a tank in chemical industries. For the flow process described below we have employed Tuning methods like Cohen Coon- CC, Ziegler Nicholas-ZN, Internal Model Control- IMC for the PID controller used, and the Premier Controller is found using Time Integral Performance Criteria like-ISE- (Integral of the Square error), IAE- (Integral of the absolute value of the error), ITAE- (Integral of the time-weighted absolute error), MSE- (Mean square error), and based on the conclusions made, it is seen that IMC is the best for controlling flow in the (FOPDT)-First Order with Dead Time process since it provides good set point tracking.