Hybrid Analysis in the Latent Nestling Method Applied to Fault Diagnosis

Author

Urrego, L.R. ; Moreno, Eugenio G. ; Anglada, F.M. ; Salvador, A.C. ; Cucarella, E.Q.

Author_Institution

Univ. Politec. de Valencia, Valencia, Spain

Volume

10

Issue

2

fYear

2013

fDate

Apr-13

Firstpage

415

Lastpage

430

Abstract

This paper presents the Latent Nestling Method (LNM) formalization in hybrid systems. For the proposed LNM, it is necessary to include places of continuous or differential character, allowing the analysis of continuous dynamical variable. This paper is a continuation of our previous papers , . Here, the LNM is exploited to analyze the extension to hybrid systems. One of the contributions of this work is a practical application of the LNM in hybrid systems. The case study is the Lubrication and Cooling system of a Wind Turbine Gearbox. The model of the system is built using colored Petri nets formalism and the classic techniques of continuous and hybrid Petri nets. Simulation results are presented to validate some key concepts of the formalization in hybrid systems.

Keywords

Petri nets; cooling; fault diagnosis; gears; lubrication; wind turbines; LNM; colored Petri net formalism; continuous character; continuous dynamical variable; cooling system; differential character; fault diagnosis; hybrid Petri nets; hybrid systems; latent nestling method formalization; lubrication system; wind turbine gearbox; Fault diagnosis; Mathematical model; Petri nets; Process control; Sensors; Trajectory; Wind turbines; Discrete event systems; Petri nets (PNs); fault diagnosis; hybrid systems;

fLanguage

English

Journal_Title

Automation Science and Engineering, IEEE Transactions on

Publisher

ieee

ISSN

1545-5955

Type

jour

DOI

10.1109/TASE.2012.2229706

Filename

6413241