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Partial Discharge Distribution Analysis on Interlace Defects of Cable Joint using K-means Clustering

K-means 클러스터링을 이용한 케이블 접속재 계면결함의 부분방전 분포 해석

  • 조경순 (광운대학교 전기공학과) ;
  • 홍진웅 (광운대학교 전기공학과)
  • Published : 2007.11.01

Abstract

To investigate the influence of partial discharge(PD) distribution characteristics due to various defects on the power cable joints interface, we used the K-means clustering method. As the result of PD number(n) distribution analyzing on $\Phi-n$ graph, the phase angle($\Phi$) of cluster centroid shifted to $0^{\circ}\;and\;180^{\circ}$ increasing with applying voltage. It was confirmed that the PD quantify(q) and euclidean distance of centroid were increased with applying voltage from the centroid distribution analyzing of $\Phi-q$ plane. The dispersion degree was increased with calculated standard deviation of the $\Phi-q$ cluster centroid. The PD number and mean value on $\Phi-q$ graph were some different by electric field concentration with defect types.

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