On Discontinuous Robust Static Output Feedback Control

Authors:	Edwards Christopher, University of Leicester, United Kingdom Yan Xing-Gang, University of Leicester, United Kingdom Spurgeon Sarah K., University of Leicester, United Kingdom
Topic:	2.5 Robust Control
Session:	Robust Controller Synthesis I
Keywords:	robust control, output feedback, sliding mode control, Lyapunov methods

Abstract

A robust stabilisation problem using static output feedback is studied for a class of linear systems with nonlinear disturbances. Two discontinuous output feedback control schemes are synthesised: one is based on sliding mode control and the other based on Lyapunov techniques. The output information appearing in the nonlinear bounds is separated from the unmeasurable part and it is directly used in the control design to enhance robustness. The study in this paper shows the effects from assuming bounds on the uncertainties on system stability.