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Wavelet ANN based stator internal faults protection scheme for 3-phase induction motor
N.R. Devi, , P.V.R. Rao
Published in
Pages: 1457 - 1461
This paper proposes a protection scheme based on Wavelet Multi Resolution Analysis and Artificial neural network which detects and classifies various possible stator winding fault of a three-phase induction motor such as inter turn faults, line to ground faults and line to line faults. The wavelet decomposition of three-phase stator currents is carried out with Bior5.5. The maximum value of absolute peak dl coefficients of three-phase currents is defined as fault index which is compared with a predefined threshold to detect the fault. The normalized peak dl coefficients of these currents are fed to a Feedforward neural network to classify various faults. The algorithm has been tested for various incidence angles and proved to be simple, reliable and effective in detecting and classifying the various stator winding faults. © 2010 IEEE.
About the journal
JournalProceedings of the 2010 5th IEEE Conference on Industrial Electronics and Applications, ICIEA 2010