Delay dependent fault estimation for uncertain time delay nonlinear systems: an LMI approach

Author

Nguang, Sing Kiong ; Shi, Peng ; Ding, Steven

Author_Institution

Dept. of Electr. & Comput. Eng., Auckland Univ.

fYear

2006

fDate

14-16 June 2006

Abstract

This paper deals with the problem of robust fault estimation for uncertain time delay Takagi-Sugeno (TS) fuzzy models. The aim of this study is to design a delay dependent fault estimator ensuring a prescribed H_infinperformance level for the fault estimation error, irrespective of the uncertainties and the time delays. Sufficient conditions for the existence of a robust fault estimator are given in terms of linear matrix inequalities. Membership functions´(MFs) characteristics are incorporated into the fault estimator design to reduce the conservativeness of neglecting these characteristics

Keywords

H^infin control; control system synthesis; delay systems; delays; fault diagnosis; fuzzy control; fuzzy set theory; linear matrix inequalities; nonlinear systems; robust control; uncertain systems; H_infinperformance level; Takagi-Sugeno fuzzy models; delay dependent fault estimation; linear matrix inequalities; membership functions; nonlinear systems; robust fault estimation; time delay systems; uncertain systems; Delay effects; Delay estimation; Estimation error; Fault detection; Fuzzy systems; Linear matrix inequalities; Nonlinear systems; Robustness; Sufficient conditions; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2006

Conference_Location

Minneapolis, MN

Print_ISBN

1-4244-0209-3

Electronic_ISBN

1-4244-0209-3

Type

conf

DOI

10.1109/ACC.2006.1657537

Filename

1657537