Title :
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
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;
Journal_Title :
Automation Science and Engineering, IEEE Transactions on
DOI :
10.1109/TASE.2012.2229706