mplementation of Self Tuning PID Controller in Pasteurizer Machine for Food and Beverage Industry Using Siemens S7-300 PLC

Abstract

Temperature is an important parameter to be controlled, and when it comes to the pasteurization of food and
beverages it becomes the most important parameters of all. So proper temperature controlling is needed to obtain the best
taste of the products. Hence, in pasteurizer it becomes necessary to have a good temperature control. Generally the
temperature is controlled by the PID blocks, and most of the PID blocks are tuned in conventional way. This leads to nonoptimal temperature control most of the time. So it demands for the necessity of some self-tuning program. Here the selftuner proves to be quite handy. It takes the parameter values based on model type with more precision and higher accuracy.
A successful programming of self-tuner can lead to better PID parameters and which is much better than the conventional
PID block.
The self-tuning PID controller can not only be applied to temperature processes, but also in other process types which
are controlled by PID. So, this fundamental can further be expanded into varied areas where precise control is needed, and
it also reduces the human efforts as well as human errors which occur while manual tuning