Diagnosis Of Incipient Faults Using Wavelet Packet Decomposition In Synchronous Generators
This paper presents incipient fault diagnosis of synchronous generators using wavelet packet decomposition.
Proper incipient fault detection techniques are required for synchronous generators because of their utilization in generating
stations, petrochemical industries. Three phase currents are acquired from generator during fault condition. These currents
are decomposed into approximate and detail signals to find energy of approximate signal and maximum energy of detail
signals to diagnose the behavior of fault. Simulation results in MATLAB/SIMULINK are presented for various faults and
for normal condition to find difference in energy ratio during healthy condition and faulty condition.
Keywords— Wavelet, Incipient fault, WPD, MCSA, Energy Ratio.