Automatic controllers are introduced for efficient control of the process industries.
Proportional, Integral and derivative (PID) controllers are the most widely used controllers in
the most process industries because of their robustness, easy implementation and simplicity.
Various tuning methods like Ziegler-Nichols (ZN) method, Cohen-Coon (CC) method,
Minimum error integral criteria method and Genetic Algorithms (GAs) have been suggested
for optimum setting of PID controller parameters. In this paper the performance of Genetic …

The derivative mode is often omitted in PID control strategies because it proves difficult to
arrive by trial‐and‐error at a set of constants which meet plant requirements. The primary
objective of this paper was to evaluate several model‐based PID tuning methods. For lag‐
dominant processes, it was recommended that the SIMC algorithm first be employed to
determine whether satisfactory performance can be obtained with PI control. If it cannot, then
derivative action should be introduced using the DS‐d technique. For delay‐dominant …