Intelligent Diagnostic of Induction Machine for Faults Detection and Classification Using Wavelet and Fuzzy Inference

Abstract:

An intelligent diagnostic method based on 3-D plot continuous wavelet transform (3-D plot CWT) and fuzzy inference system is presented to investigate the detectability and classification of rotor broken bars faults in induction machine (IM) and to overcome the limitation of classical Fourier Transform (FT). This approach is successfully used with Motor Current Signature Analysis (MCSA) and suitable developed model of IM in healthy and faulty mode using Matlab environment. As first step we performed new results using 3-D plot CWT to extract the discriminating features. The features extracted from the wavelet transformed signal are the second most predominant frequency, the time range at which it occurs and the corresponding wavelet coefficients .Then as second and last step a fuzzy Inference system is designed and implemented using Matlab software with these three features extracted from the wavelet transformed signal as inputs and generates an output that classifies the fault and no fault conditions. It is observed that the results are satisfactory.

• Periodical: Applied Mechanics and Materials (Volumes 789-790)
• Pages: 597-603
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.789-790.597
• Online since: September 2015
• Authors: Samia Bourdim*, Kamel Eddine Hemsas, Youcef Harbouche
• Keywords: 3-D Plot Continuous Wavelet Transform, Fault Diagnosis, Fuzzy Inference System, Induction Machine, Rotor Broken Bars

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