Removal of Interferences from Partial Discharge Pulses using Wavelet Transform
Abstract: It is essential to
detect partial discharge (PD) as a symptom of insulation breakdown in high
voltage (HV) applications. However accuracy of such measurement is often
degraded due to the existence of noise in the signal. Wavelet Transform (WT)
seems to be more suitable than traditional Fourier Transform in analyzing
signals with interesting transient information such as partial discharge (PD)
signals. In this paper a WT method with soft thresholding is used for signal
denoising. PD signals and corona obtained from actual measurements with
different voltage magnitudes are processed. Processed signals show the better
result.
Author: Vidya H.A Vidya H.A,
Bindia Tyagi, V Krishnan V Krishnan, K. Mallikarjunappa K. Mallikarjunappa
Journal Code: jptkomputergg110017