Model Reference Adaptive Control for Temperature Regulation of Continuous Stirred Tank Reactor

CSTR (Continuous Stirred Tank Reactor) is a major challenge in process control that has sparked a lot of research in the chemical and control engineering. The nonlinear and coupled nature of CSTR makes designing a robust control with a larger working region difficult. Conventional PID (Proportional Integral Derivative) and adaptive control are described in this work for temperature control. For adaptive control system, the MRAC strategy is utilized and the control law is created by the Lyapunov stability method. Additionally, the robustness and efficacy of the MRAC are confirmed compared with PID controller. The suggested controllers' performance is verified using the steady-state error, time specification criteria and tracking of the reference signal in presence of uncertainty. The simulation results clearly show that the MRAC method provides adequate performance in terms of process functional improvements, and more flexibility, in addition to, improves system-tracking precision in control action compared with the PID.