대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

웨이브렛 변환을 이용한 부분방전 신호의 분석

Analysis of Partial Discharge Signal Using Wavelet Transform

  • 이현동 (영남대 대학원 전기공학과) ;
  • 김충년 (영남대 대학원 전기공학과) ;
  • 박광서 (영남대 대학원 전기공학과) ;
  • 이광식 (영남대 전자정보공학부) ;
  • 이동인 (영남대 전자정보공학부)
  • 발행 : 2000.11.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper deals with the multiresolution analysis of wavelet transform for partial discharge(PD). Test arrangement is based on the needle-plane electrode system and applied AC high voltage. The measured PD signal was decomposed into "approximations" and "details". The approximation are the high scale, low-frequency components of the PD signal. The details are the low-scale, high frequency components. The decomposition process are iterated to 3 level, with successive approximation being decomposed in turn, so that PD signal is broken down into many lower-resolution components. Through the procedure of signal wavelet transform, signal noise extraction and signal reconstruction, the signal is analyzed to determine the magnitude of PD.

키워드

참고문헌

  1. F.H.Kreuger, Partial Discharge Detection in HV Equipment, 1969, Heywood, London, 1989, Butterworths, London
  2. Kopf U, Feser K, 'Rejection of Narrow-band Noise and Repetitive Pulses in On-site PD measurement', IEEE Trans. on Elect. Insul., Vol.30, No.6, 1995
  3. E. Gulski, F.H. Kreuger, 'Computer aided recognition of discharge sources', IEEE Trans. on Elect. Insul. Vol.27, pp 82-92, 1992 https://doi.org/10.1109/14.123443
  4. N.Hozumi, T.Okamoto and T.Imajo, 'Discrimination of Partial Discharge Pattern using a Neural Network', IEEE Trans. on Elect. Insul., Vol.27, pp550-556, 1992 https://doi.org/10.1109/14.142718
  5. B.Fruth and L.Niemeyer, 'The Importance of Statistical Characteristics of Partial Discharge Data', IEEE Trans. on Elect. Insul., Vol.27, pp60-69, 1992 https://doi.org/10.1109/14.123441
  6. 中村光一外 3人. '超音波法による油入變壓器の放電占標定に關する實驗的檢討', 電學論B, 116券 10號, pp1285-1291, 平年8年
  7. R.Mangeret, J.Farenc, Bui Ai, 'Optical Detection of Partial Discharge using Fluorescent Fiber', IEEE. EI-26, No.4, pp783-789, August 1991
  8. Jen-shin Chang, 'Electromagnetic Emission from Atmospheric Pressure Gas Discharge', IEICE Trans. Comun. Vol.E79-B, Noo.4 pp447-456, April 1996
  9. Charles K.Chui, An Introduction to Wavelet, 1992