A Study on Diagnosis of Transformers Aging Sate Using Wavelet Transform and Neural Network

이산웨이블렛 변환과 신경망을 이용한 변압기 열화상태 진단에 관한 연구

  • 박재준 (중부대학교 정보공학부) ;
  • 송영철 (광운대학교 전기공학과) ;
  • 전병훈 (중부대학교 정보공학부)
  • Published : 2001.01.01


In this papers, we proposed the new method in order to diagnosis aging state of transformers. For wavelet transform, Daubechies filter is used, we can obtain wavelet coefficients which is used to extract feature of statistical parameters (maximum value, average value, dispersion skewness, kurtosis) about each acoustic emission signal. Also, these coefficients are used to identify normal and fault signal of internal partial discharge in transformer. As improved method for classification use neural network. Extracted statistical parameters are input into an back-propagation neural network. The number of neurons of hidden layer are obtained through Result of Cross-Validation. The network, after training, can decide whether the test signal is early aging state, alst aging state or normal state. In quantity analysis, capability of proposed method is superior to compared that of classical method.


  1. IEEE Transaction on Power Delivery v.13 no.4 Multiresolution Signal Decomposition: A New Tool For Fault Detection in Power Transformers During Impulse Tests Santosh Kumar Pandey;L. Satish
  2. Intelligent System Application to Power Systems(ISAP'99) v.4 no.8 Detection of Transformer Winding Faults Using Wavelet Analysis and Neural Network Hang Wang;Karen L. Butler
  3. Trans. Inst. Elect. Eng. japan v.102.A no.12 Change in Pulse-Mean Φ-q Distribution Patterns of Partial discharge due to Treeing Propagation T. Okamoto;T. Tanaka
  4. JIEE v.102 no.7 Cycle-mean Φ-Q characteristic of partial discharges in six electrode system T. Okamoto;T. Tanaka
  5. Journal of the Korean Institute of Electrical and Electronic Material Engineer v.10 no.3 The Diagnosis of Treeing Breakdown using SimultaneousDetection of Electrical Charge and Acoustic Emission Pulse of Partial Discharge 박재준;김성홍;김재환
  6. Jounal of the Korean Institute of Electrical and Electronic Material Engineer v.8 no.4 Characteristics of Acoustic Emission accouding to Variation Gap Length on Artifical Needle Shape Void 박재준;김상남
  7. International Journal of Machine Tools & Manufacture v.39 Discrete Wavelet Transform for Tool Breakage Monitoring Xiaoli Le;Shen Dong;Zhejun Yuan
  8. IEEE Trasaction on Ultrasonics, Ferroelectrics, and Frequency Control v.44 no.1 Signal Detection and Noise Suppression Using a Wavelet Transform Signal Processor: Application to Ultrasonic Flaw Detection Agostino Abbate;Jeff Koay;Julius Fankel;Stephan C. Schroeder;Pankaj
  9. IEEE Transaction on Pattern Analysis and Machine Interlligence v.21 no.1 Feature Extraction from Wavelet Coefficients for Pattern Recognition Tasks Stefan Pittner;Sagar V. Kamarthi
  10. International Conference on Information, Communication and Signal Proceeding ICICS '97 no.3E1.2 Wavelet Network Based Transient Fault Signal Detection and Identification Wci-Rong Chem;Qing-Qian;Xiao-Ru Wang
  11. IEEE Transaction on Dielectric and Electrical Insulation v.7 no.1 Wavelet Analysis for Classification of Multi-Source PD Patterns E. M. Lalitha;L. Satish
  12. International Journal of Machine Tools & Manufacture v.139 Tool Wear with Fuzzy Clissification and Wavelet Fuzzy Nerual Network Yingxue Yao;Ziaoli Li;Zhejun Yuan
  13. IEEE proceeding Neuro-Fuzzy Computing for Large Power Transformers Monitoring and Diagnostiss O. Roizman;V. Davydov
  14. JJAP v.20 no.11 Acoustic Emission Associated with Tree Growth in Polyethylene N. Yoshimura;H. Kudo
  15. Introduction to Wavelets and Wavelet Transforms A Primer
  16. Wavelet and Filter Banks Gilbert Strang;Truong Nguyen
  17. IEEE SPECTRUM Wavelet Analysis Andrew Bruce;David Donho& Hong-Ye Gao
  18. Adapted Wavelet analysis form Theroy to Software Mladen Victor Wickerhaouser
  19. IEEE Trans. Die. and Elect. Insul. v.2 Development of computer-based measurements and their application to PD Pattern analysis R. E. James;B. T. Phung
  20. IEEE Transaction on Power System v.11 no.4 Discrete Wavelet Analysis of Power System W. Awilkinson;M. D. Cox
  21. Preceeding of 1998 International Symposium on Electrical Insulating Materials v.E2 no.2 Noise Reduction and PD Measurements Using Digital Filter and Signal Precessing Technique in HV Substations Masahiro KOZAKO;Zhihai TIAN;Hitoshi OKUBO;Nobuyuki SHIBATA;Masayuki HIKITA
  22. Preceeding of the IEEE Instrumentation and Measurement Technology Conference v.2 Wavelet and Power system Transient Analysis Akram Al-Rawi;Michael Devancy