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Application of Principal Component Analysis (PCA) and SVMs for Discharges Radiated Fields Discrimination

  • Mohamed GueraichiEmail author
  • Azzedine Nacer
  • Hocine Moulai
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 858)

Abstract

This paper proposes the use of a fast method of discriminating magnetic signals radiated from electrical discharges occurring in overhead lines string insulations. Two types of electrical discharges exist: dangerous that can lead to arcing discharges and those without danger that auto extinguish. We propose as a new method of discriminating and classifying partial discharges principal component analysis (PCA) combined with support vector machines (SVMs) which have proved their robustness in several disciplines. However, the used database is composed of two classes, the majority representing 130 harmless radiated magnetic field signals, while the second minority class represents 31 dangerous signals. The learning and test sets correspond respectively to 2/3 and 1/3 of the database. The SVMs application to the test set shows that no dangerous signal is detected, this being due to the fact that the two classes are unbalanced. We were then asked to apply the Principal Component Analysis (PCA) even before classification, which made it able to select the most relevant variables. The results show that by using PCA and then SVMs, the detection rate of a dangerous signal is 90%.

Keywords

Partial discharges (PD) Insulation systems Support Vector Machines (SVMs) Principal component analysis (PCA) 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Mohamed Gueraichi
    • 1
    Email author
  • Azzedine Nacer
    • 1
  • Hocine Moulai
    • 1
  1. 1.Laboratory of Electrical and Industrial Systems, Faculty of Electronic and Computer ScienceUniversity of Sciences and Technology Houari Boumediene (USTHB)Bab Ezzouar, AlgiersAlgeria

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