An equivalent control based sliding mode observer using high order uniform robust sliding operators

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Date

2012-06

Authors

Sánchez-Torres, Juan D.
Loukianov, Alexander
Moreno, Jaime
Drakunov, Sergey

Journal Title

Journal ISSN

Volume Title

Publisher

IEEE

Abstract

Description

In this paper a sliding-mode observer based on the equivalent control method for discontinuous functions for a class of non-linear systems is proposed. The observer structure and its existence conditions are presented. Besides, a class of high order sliding operators with the properties of uniform (w.r.t. initial conditions) finite time convergence and with reduction of chattering effect are exposed. The use of these operators in the observer design allows the calculation of the equivalent control and the observer convergence uniformly in finite time. A simulation example is presented to illustrate the proposed method.

Keywords

State Observers, Sliding-mode Control

Citation

Sánchez-Torres, J.D.; Loukianov, A.; Moreno, J. and Drakunov, S.(2012). An equivalent control based sliding mode observer using high order uniform robust sliding operators. American Control Conference (ACC).