Wavelet-Based Flashover Prediction Using High-Frequency Components

고주파 성분을 사용한 웨이블렛 기반 섬락 예측

  • Song, Young-Chul (Kyungpook National University, School of Electrical Engineering and Computer Science)
  • Received : 2010.01.27
  • Accepted : 2010.03.03
  • Published : 2010.04.01


In order to monitor operating performance of contaminated outdoor insulators, a wavelet-based flashover prediction method is proposed. In most cases, the low-frequency components, namely, fundamental, $3^{rd}$, and $5^{th}$ harmonic components have been mainly used for the sake of the spectral analysis of the leakage current. However, in this paper, the detail coefficients of wavelet transform representing high-frequency components are used as important information to predict a flashover in the contaminated insulator. Experimental results verify that the proposed method has a superior capability for flashover prediction.


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