Independent Design of Decentrallized Contollers for Multi Input Multi Output Processes

Abstract

The main objective is to provide the system robustness and improved overall performance under significant model mismatches. In this a novel engineering oriented control system design methods for multivariable processes is presented. By employing the concepts of energy transmission ratio and effective relative gain, an Equivalent and Effective transfer function matrices for closed loop control system can be obtained. Consequently, the decentralized controllers can be independently designed by employing the single loop tuning techniques. These two design methods provide simple, straight forward and easy approaches for better computation. The real time experimentation carried out for the lower order MIMO process using VUDAQ-100 adds on card. The designed decentralized controllers are applied and the performances of both the methods have been analyzed.