Feature analysis of acoustic emission signals in time-frequency representation from partial discharge sources using self-organizing map

• Main Authors: Zakaria Z., Md Thayoob Y.H., Samsudin M.R., Ghosh P.S., Chai M.L.
• Other Authors: 35411030800
• Format: Conference paper
• Published: 2023
• Subjects: Acoustic emission(AE); Partial discharge sources; Self-Organizing Map(SOM); Time-frequency representation; Acoustic emissions; Conformal mapping; Fourier transforms; Image processing; Imaging systems; Power transformers; Wavelet transforms; Acoustic emission signal; AE signals; Descriptors; Electrical systems; Feature analysis; Paper insulation; Short time Fourier transforms; Spectrograms; Time-frequency representations; Partial discharges

Electrical systems throughout the world are experiencing problems with aging insulation. One of the major components, which degrade under stresses, is the paper insulation of a power transformer. In this research work, analysis of acoustic emission (AE) signal patterns due to the occurrence of parti...