Decentralized PI control design for a pilot plant distillation system using LMI approach

This article addresses a Linear Matrix Inequality based decentralized PI controller for a Distillation system. In the following, design the design of the PI Controller is transformed into a problem design of State Feedback Controller and this problem is solved and additionally by using the Convex Optimization approach. The interacting behavior of the delegation substructure of the process variables of a multivariable process, in which the change in one independent variable or manipulated variable of the process has an impact on the other constant variables or controlled variables of the following process makes the selection of a proper controller more complex. The algorithm is simulated and is further validated in a real-time environment for the identified Pilot Plant Distillation column model.