KIEE International Transactions on Electrophysics and Applications

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Possible Application of the PD Detection Technique Using Electro-Optic Pockels Cell With Nonlinear Characteristic Analysis on the PD signals

  • Kang, Won-Jong (Dept. of Electrical engineering, Hanyang University) ;
  • Lim, Yun-Sok (Dept. of Electrical engineering, Hanyang University) ;
  • Chang, Young-Moo (Dept. of Electrical engineering, Hanyang University) ;
  • Koo, Ja-Yoon (Dept. of Electrical engineering, Hanyang University)
  • Published : 2001.06.01

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Abstract

Abstract- In this paper, a new Partial Discharge (PD) detection using Pockels cell was proposed and considerable apparent chaotic characteristics were discussed. For this purpose, PD was generated from needle-plane electrode in air and detecte by optical measuring system using Pockels cell, based on Mach-Zehner interferometer, consisting of He-Ne laser, single mode optical fiber, 50/50 beam splitter and photo detector. In addition, the presence of chaos of the PD signals has been investigated by examining their means of qualitative and quantitative information. For the former, return map and 3-dimensional strange attractor have been drawn in order to investigate the presence of chaotic characteristics relevant to PD signals, detected through CT and Peckels sensor respectively, in the normalized time series. The presence of strange attractor indicates the existence of fractal structures in it's phase space. For the latter, several dimension values of strange attractor were verified sequentially. Throughout this paper, it is likely that the chaotic characteristics regarding the PD signals under air are verified.

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