Designing and comparison of controllers based on optimization techniques for pH neutralization process

The objective is to design controllers using different optimization techniques for pH Neutralization process. Controlling of pH in neutral region is an important process as small change in input gives the huge change in the output. The controller is designed using the Optimization techniques like BFO and PSO Algorithm. Comparison between BFO and PSO based PID controller and PSO based I-PD controller. The performance analysis is done for PID controllers in Acid, Neutral and Base region by keeping set point in 5, 7 and 12. From the simulation result it is found that BFO based PID controller gives better results when compared to other two techniques for pH neutralization process considered.