Design of Sliding Mode Controller to Chemical Processes for Improved Performance

Abstract

This paper presents design of continuous-time sliding mode controller for chemical processes which are adequately approximated by first order plus dead time (FOPDT) model. It is observed that the sliding mode controller is effective over classical PID controller to regulate nonlinear chemical processes through linearized model in terms of performance and robustness. Most widely used processes like continuous yeast fermentation, two capacity process and isothermal chemical reactor are considered to show the efficacy of the sliding mode controller over PID controller