The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Technique for Removing Adjacent Induction Noise Mixed with Partial Discharge Signals of High Voltage Rotating Machines

고압 회전기 부분방전 신호에 혼합된 인접상 유도 잡음 제거 기법

  • 윤영우 (한국전기연구원 전력기기연구센터) ;
  • 이상화 (한국전기연구원 전력기기연구센터) ;
  • 황돈하 (한국전기연구원 전력기기연구센터) ;
  • 추영배 (거제대학 선박기술계열) ;
  • 강동식 (한국전기연구원 전력기기연구센터)
  • Published : 2009.02.01
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Abstract

Analysis of the partial discharge signal, a technique to diagnose the stator winding insulation is a key function for the diagnosis of high voltage rotating machines and requires high precision. To satisfy this requirement, various denoising techniques such as filtering and differential methods were proposed. However, these techniques can not eliminate a adjacent induction noise that decreases reliability of the diagnosis. A simple novel denoising algorithm, therefore, is proposed for removing the adjacent induction noise in this paper. The algorithm shows good performance in the real partial discharge signals measured by 13kV class capacitive couplers installed at hydro-generator in Dae-cheong Dam.

Keywords

References

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