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https://open.uns.ac.rs/handle/123456789/5313
Title: | Fault Diagnosis of Rotating Electrical Machines in Transient Regime Using a Single Stator Current's FFT | Authors: | Sapena-Bañó A. Pineda-Sanchez M. Puche-Panadero R. Martinez-Roman J. Matić, D. |
Issue Date: | 1-Nov-2015 | Journal: | IEEE Transactions on Instrumentation and Measurement | Abstract: | © 2015 IEEE. The discrete wavelet transform (DWT) has attracted a rising interest in recent years to monitor the condition of rotating electrical machines in transient regime, because it can reveal the time-frequency behavior of the current's components associated to fault conditions. Nevertheless, the implementation of the wavelet transform (WT), especially on embedded or low-power devices, faces practical problems, such as the election of the mother wavelet, the tuning of its parameters, the coordination between the sampling frequency and the levels of the transform, and the construction of the bank of wavelet filters, with highly different bandwidths that constitute the core of the DWT. In this paper, a diagnostic system using the harmonic WT is proposed, which can alleviate these practical problems because it is built using a single fast Fourier transform of one phase's current. The harmonic wavelet was conceived to perform musical analysis, hence its name, and it has spread into many fields, but, to the best of the authors' knowledge, it has not been applied before to perform fault diagnosis of rotating electrical machines in transient regime using the stator current. The simplicity and performance of the proposed approach are assessed by comparison with other types of WTs, and it has been validated with the experimental diagnosis of a 3.15-MW induction motor with broken bars. | URI: | https://open.uns.ac.rs/handle/123456789/5313 | ISSN: | 00189456 | DOI: | 10.1109/TIM.2015.2444240 |
Appears in Collections: | FTN Publikacije/Publications |
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