A Study on Partial Discharge Pattern Recognition Using Neuro-Fuzzy Techniques

Neuro-Fuzzy 기법을 이용한 부분방전 패턴인식에 대한 연구

  • 박건준 (수원대 공대 전기공학과) ;
  • 김길성 (수원대 공대 전기공학과) ;
  • 오성권 (수원대 공대 전기공학과) ;
  • 최원 (대진대 공대 전기공학과) ;
  • 김정태 (대진대 공대 전기정보시스템공학과)
  • Published : 2008.12.01

Abstract

In order to develop reliable on-site partial discharge(PD) pattern recognition algorithm, the fuzzy neural network based on fuzzy set(FNN) and the polynomial network pattern classifier based on fuzzy Inference(PNC) were investigated and designed. Using PD data measured from laboratory defect models, these algorithms were learned and tested. Considering on-site situation where it is not easy to obtain voltage phases in PRPDA(Phase Resolved Partial Discharge Analysis), the measured PD data were artificially changed with shifted voltage phases for the test of the proposed algorithms. As input vectors of the algorithms, PRPD data themselves were adopted instead of using statistical parameters such as skewness and kurtotis, to improve uncertainty of statistical parameters, even though the number of input vectors were considerably increased. Also, results of the proposed neuro-fuzzy algorithms were compared with that of conventional BP-NN(Back Propagation Neural Networks) algorithm using the same data. The FNN and PNC algorithms proposed in this study were appeared to have better performance than BP-NN algorithm.

Keywords

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