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A new wavelet-based method for detection of high impedance faults

Mokhtari, H ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1109/fps.2005.204246
  3. Publisher: IEEE Computer Society , 2005
  4. Abstract:
  5. Detecting high impedance faults is one of the challenging issues for electrical engineers. Over-current relays can only detect some of the high impedance faults. Distance relays are unable to detect faults with impedance over 100Ω. In this paper, by using an accurate model for high impedance faults, a new wavelet-based method is presented. The proposed method, which employs a 3 level neural network system, can successfully differentiate high impedance faults from other transients. The paper also thoroughly analyzes the effect of choice of mother wavelet on the detection performance. Simulation results which are carried out using PSCAD/EMTDC software are summarized
  6. Keywords:
  7. Computer simulation ; Electric currents ; Electric fault currents ; Electric relays ; Electrical engineering ; Neural networks ; Transients ; High impedance faults ; Power quality ; Software - PSCAD/EMTDC ; Wavelet-based method ; Electric impedance
  8. Source: 2005 International Conference on Future Power Systems, Amsterdam, 16 November 2005 through 18 November 2005 ; Volume 2005 , 2005 ; 9078205024 (ISBN); 9789078205029 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/1600519