HAL : hal-00372262, version 1

DOI : 10.1109/TEC.2008.921559

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IEEE Transactions on Energy Conversion 24, 2 (2009) 431 - 441

Fault Detection and Diagnosis in a Set “Inverter–Induction Machine” Through Multidimensional Membership Function and Pattern Recognition

Olivier Ondel 1, Guy Clerc 1, Emmanuel Boutleux 1, Eric Blanco 1

(06/2009)

Nowadays, electrical drives generally associate inverter and induction machine. Thus, these two elements must be taken into account in order to provide a relevant diagnosis of these electrical systems. In this context, the paper presents a diagnosis method based on a multidimensional function and pattern recognition (PR). Traditional formalism of the PR method has been extended with some improvements such as the automatic choice of the feature space dimension or a "nonexclusive" decision rule based on the k-nearest neighbors. Thus, we introduce a new membership function, which takes into account the number of nearest neighbors as well as the distance from these neighbors with the sample to be classified. This approach is illustrated on a 5.5 kW inverter-fed asynchronous motor, in order to detect supply and motor faults. In this application, diagnostic features are only extracted from electrical measurements. Experimental results prove the efficiency of our diagnosis method.

1 :	Ampère
	CNRS : UMR5005 – Université Claude Bernard - Lyon I – Institut National des Sciences Appliquées (INSA) - Lyon – Ecole Centrale de Lyon

Domaine

:

Sciences de l'ingénieur/Energie électrique

Mots Clés : Data standardization – diagnosis – induction machine – inverter – membership function – nonexclusive decision rule – pattern recognition (PR) – reliability index

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Soumis le : Jeudi 21 Mai 2009, 21:37:53

Dernière modification le : Jeudi 10 Décembre 2009, 15:06:04