An equivalent control based second order sliding mode observer using robust differentiators

Author

Sánchez-Torres, Juan Diego ; Loukianov, Alexander G. ; Murillo, Julián Alberto Patiño ; Giraldo, Bertulfo ; Botero, Héctor

Author_Institution

Dept. of Electr. Eng. & Comput., CINVESTAV, Guadalajara, Mexico

fYear

2011

fDate

1-4 Oct. 2011

Firstpage

1

Lastpage

6

Abstract

In this paper a sliding-mode observer for a class of non-linear systems is proposed. The observer is based on the equivalent control method. The mathematical tools required to design such an observer are also presented. The proposed scheme can ensure finite time convergence of the observer and the reduction of chattering effect due to relay-type correction terms. Several examples are presented to illustrate the proposed method.

Keywords

control system synthesis; nonlinear control systems; observers; robust control; variable structure systems; chattering effect reduction; equivalent control method; finite time convergence; nonlinear system; observer design; relay-type correction term; robust differentiator; second order sliding mode observer; Chemical reactors; Convergence; Equations; Mathematical model; Observers; Robustness; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Robotics Symposium, 2011 IEEE IX Latin American and IEEE Colombian Conference on Automatic Control and Industry Applications (LARC)

Conference_Location

Bogota

Print_ISBN

978-1-4577-1689-8

Type

conf

DOI

10.1109/LARC.2011.6086834

Filename

6086834