Analyse détaillée du contenu spectral dans le courant statorique des machines asynchrones sous un défaut de la cassure de barres rotoriques en utilisant la technique de la MCSA-FFT
Authors/Creators
- 1. University of El Oued, Fac. Technology, Algeria
- 2. LAADI, Faculty of Science and Technology, University of Djelfa 17000 DZ, Algeria
- 3. Unité de Recherche Appliquée en Energies Renouvelables, URAER, CDER, 47133, Ghardaïa, Algeria
- 4. Université Frères Mentouri Constantine, 25000, Departement d'électrotechnique, Laboratoire électrotechnique Constantine LEC, Algerie
Description
This paper is part of the monitoring rotating electrical machines field that verifies compatibility and reliability of system. Asynchronous machine (ASM) is used more than 90% in the industrial and / or domestic sector when compared with other types of rotating electrical machines. For this reason, fault diagnosis in ASM is an essential step. Among the faults which can affect the ASM is the broken rotor bars (BRBs). Several techniques have been used in this field in order to detect ASM faults. Among them which used currently, is the stator current analysis. Its principle is based on the phenomenon of the magnetic field distribution in the air-gap with its influence on the stator currents. This technique called Motor Current Signature Analysis (MCSA). We have highlighted a very precise study in the presence of the BRB fault based on the Fast Fourier Transform (FFT) of the stator current. Thus, to better understand the phenomena which affected by the BRB fault; a detailed analysis of the spectral contfrBRB fault has been carried out carefully in order to reach a best decision. In addition, exploitation of the experimental results was well discussed.