Design of Multivariable PI Controller for Distillation Column using Simulated Annealing Algorithm

Abstract

The main aim of this paper is to design a centralized PI controller for the bench mark distillation column process using Simulated Annealing. In general, multivariable system can be controlled by decentralized controller. The improvement of each single loop enhances the multivariable control. But multiloop controller fails when the interaction between loops are very high. In the presented method centralised PI controller is designed for highly nonlinear interacting process. In this paper, multivariable PI controller is designed and controller parameters are tuned using Simulated Annealing.  The simulation results are given for the comparison of multivariable and multiloop PI controller. The superiority of proposed multivariable PI controller performance is briefly discussed.