Fast Terminal Sliding Mode Control for High Pressure Rated Modified CSTR System

Abstract

This paper presents Continuous Sliding Mode controllers applied to nonlinear high pressure rated modified CSTR system which has been linearized to one operating point. Firstly, the first-order sliding mode control or classical sliding mode control has been discussed, and second-order super twisting control is used to attain robustness properties in the presence of uncertain bounded External disturbances when applied to the system. Later, Terminal Sliding Mode Control and Fast Terminal Sliding Mode Control are presented which result in faster convergence of state variables with respect to initial values of the system. The convergence of state variables to the equilibrium point occurs in finite time. The simulation results show the improved control performances and the properties of continuous Sliding Mode Controllers when applied for maintaining pH control for High Pressure Rated Modified CSTR system where it has unmodelled dynamics as the external bounded disturbance.