Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

Recognition of PD Sources in Air by STFT and Stochastic Parameters

STFT 및 통계적 처리에 의한 공기 중 부분방전원 식별

  • Published : 2004.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

The phenomenon of PD(Partial Discharge) is accompanied by electromagnetic wave which can be detected by UHF(Ultra High Frequency) antenna. The signals obtaining from UHF antenna are very high rapid pulse and have wide band frequency responses. The distribution of PRPD(Phase Resolved Partial Discharge) which consisted of those pulse train can show distinct characteristics of PD sources. But it is not sufficient to discriminate among PD sources. This paper suggests that the stochastic parameters formed by preprocessing of STFT(Short Time Fourier Transform) are good tools for differentiate from PD sources. The stochastic parameters are CC(Cross Correlation) mean value, CC standard deviation, CC skewness, CC kurtosis.

Keywords

References

  1. IEEE Transaction on Electrical Insulation v.28 no.6 Classification of partial discharges F.H.Kreuger;E.Gulski;A.Krivda
  2. IEEE Trans. on Elect. Insul. v.27 Computer aided recognition of discharge sources E.Gulski;F.H.Kreuger https://doi.org/10.1109/14.123443
  3. Africon, 1999 IEEE v.2 Rogowski coils for short duration (>10 / spl mu/S) pulsed current (<10 kA) measurement Turner,G.R.;Hofsajer,I.W. https://doi.org/10.1109/AFRCON.1999.821863
  4. IEEE Transactions on Power Delivery v.5 no.4 Acoustic diagnosis of Gas insulated substation: a theoretical and experimental basis L.E.Lundgaard;M.Runde;B.Skyberg
  5. High Voltage Engineering Symposium, IEE no.467 UHF Diagnostics For Gas Insulated Substations Brian Hampton
  6. IEE Prodeedings of Science Measurement Technology v.142 Nonstationary behavior of partial discharge during insulation aging Van Brunt, R. J.;von Glahn, P.;Las,T. https://doi.org/10.1049/ip-smt:19951435
  7. Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on Characterization of partial discharge signals using wavelet and statistical techniques Yu Ming;Birlasekaran,S.
  8. 전기전자재료학회논문지 v.14 no.12 변압기 부분방전 상시 감시 기법에 관한 연구 권동진;박재준
  9. 전기전자재료학회논문지 v.14 no.8 와이블 분포식을 이용한 Epoxy 복합체의 절연 신뢰도 해석 임종관;박용필;이준용
  10. 전기전자재료학회논문지 v.15 no.11 에폭시/고무 거시계면에서 장시간 절연파괴전압에 대한 연구 박우현;이기식 https://doi.org/10.4313/JKEM.2002.15.11.1003