DOI QR코드

DOI QR Code

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

Abstract

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.

Keywords

References

  1. 김찬영, 김동명, 권태호, 이남우, "염분오손에 따른 배전설비의 누설전류 분석," 대한전기학회 2007년도 제38회 하계학술대회, 2007년, pp. 1476-1477.
  2. 김영석, 송길목, 김선구, "오염 환경하에서 고분자 절연 재료의 표면 누설전류 측정 및 열화 패턴 분석," 대한전기학회 2007년도 제38회 하계학술대회, 2007년, pp. 2080-2081.
  3. T. Suda, "Frequency Characteristic of Leakage Current Waveforms of an Artificially Polluted Suspension Insulator," IEEE Trans. Dielectr. Electr. Insul. Vol. 8, No. 4, pp. 705-709, 2001. https://doi.org/10.1109/94.946726
  4. M. Sato, A. Nakajiuma, and T. Komukai, "Spectral Analysis of Leakage Current on Contaminated Insulator by Auto Regressive Method,"1998 Annual Report of Conference on Electrical Insulator and Dielectric Phenomena, Atlanta, USA, pp. 64-66, 1998.
  5. A. H. El-Hag, S. H. Jayaram, and E. A. Cherney, "Fundamental and Low Frequency Harmonic Components of Leakage Current as a Diignosiic Tool to Study Aging of RTV and HTV Silicone Rubber in Salt-Fog," IEEE Trans. Dielectr. Electr. Insul. Vol. 10, No. 1, pp. 128-136, 2003. https://doi.org/10.1109/TDEI.2003.1176575
  6. Y. C. Song, J. J. Park, and D. H. Choi, "A Flashover Prediction Method for Contaminated Insulators using a Stochastic Analysis of Leakage Current," Jpn. J. Appl. Phys., Vol. 43, No. 5A, pp. 2693-2696, 2004. https://doi.org/10.1143/JJAP.43.2693
  7. Y. C. Song and D. H. Choi, "High-frequency components of leakage current as diagnostic tool to study aging of polymer insulators under salt fog," Electronics Letters, Vol. 41, pp. 684-685, 2005. https://doi.org/10.1049/el:20050516
  8. S. Chandrasekar, C. Kalaivanan, A. Cavallini, and G. C. Montanari, "Investigations on Leakage Current and Phase Angle Characteristics of Porcelain and Polymeric Insulator under Contaminated Conditions," IEEE Trans. Dielectr. Electr. Insul. Vol. 16, pp. 574-583, 2009. https://doi.org/10.1109/TDEI.2009.4815193