A nonlinear UIO scheme for the FDI on a small commercial aircraft

Author

Amato, Francesco ; Mattei, Massimiliano ; Lervolino, R. ; Paviglianiti, Gaetano

Author_Institution

DIMET, Calabria Univ., Italy

Volume

1

fYear

2002

fDate

2002

Firstpage

235

Abstract

In this paper we consider the problem of detecting and isolating sensor faults on a small commercial aircraft in the presence of external disturbances and uncertainties. A nonlinear observer based approach is proposed which makes use of the complete nonlinear model of the aircraft. This approach is based on the so-called unknown input observers (UIO) theory and guarantees disturbance decoupling, H-infinity performance, and an assigned rate of convergence for the estimation errors. A comparison between the application of the standard UIO based fault diagnosis and isolation (FDI) scheme, and the proposed nonlinear scheme shows the benefits of this technique. Some numerical simulations are carried out on the model of the small commercial aircraft under consideration in the Brite Euram ADFCS-III project.

Keywords

aircraft maintenance; fault diagnosis; observers; sensors; Brite Euram ADFCS-II project; H infinity performance; fault diagnosis; fault isolation; nonlinear observer; sensor faults; small commercial aircraft; unknown input observers; Aerospace control; Aircraft; Convergence; Estimation error; Fault detection; H infinity control; Mathematical model; Numerical simulation; Redundancy; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 2002. Proceedings of the 2002 International Conference on

Print_ISBN

0-7803-7386-3

Type

conf

DOI

10.1109/CCA.2002.1040191

Filename

1040191