Design and simulation of model based controllers for 2×2 CSTR process

PID controllers and Model predictive controllers (MPC) are model based controllers being deployed in several process industries. Industrial processes are non linear and multivariable in nature. Hence linear controllers designed at one operating point may not give efficient control of multivariable process as it is affected by interaction between variables, operating point shifts and disturbances. To accommodate linear controllers with such drawbacks, multiple model strategy has been used. This paper proposes multiple model based PID and MPC control for a nonlinear 2×2 CSTR process. Closed loop control is implemented on the chosen process in simulation with Matlab. The controllers are subjected to both reference tracking and disturbance rejection.