Chaos Control in a Non-Isothermal Autocatalytic Chemical Reactor

Abstract

<em>In this paper, a reaction system consisting of two parallel, non-isothermal autocatalytic reactions in a Continuous Stirred Tank Reactor (CSTR) has been considered. Reactor chaotic behavior is possible for certain </em><em>values </em><em>of system parameters. Two types of controllers are designed and compared in order to control both the reactor temperature and the product concentration. The first controller is a linear state feedback type, designed based on the linearized model of the process </em><em>and the second one is designed based on the Global Linearizing Control (GLC)</em><em> strategy.</em><em>Since the system states are not measured completely, a nonlinear observer has been used to estimate the system states. Finally, computer simulation </em><em>is </em><em>performed to show the effectiveness of the proposed schemes. Simulation results indicate that the GLC-based control scheme is more effective for set point tracking while the control scheme obtained using the linearized model of the process is more efficient for load rejection purposes.</em>