A Dynamic Sliding Mode Controller Approach for Open-Loop Unstable Systems

Abstract

This document presents a Dynamic Sliding Mode Controller for open-loop unstable processes with time delay combining the sliding mode concepts and internal mode structures. The proposal aims to improve performance concerning sliding mode control, both in tracking and regulation, and to reduce the chattering effect on the control signal. An unstable system. An empirical method approximates an unstable third-order system by a First Order Plus Dead Time (FOPDT) model. Several set points and disturbances are used for testing the proposed approach.