Spectral and statistical analysis for ferroresonance phenomenon in electric power systems

Seker S., Akinci T. Ç., Taskin S.

ELECTRICAL ENGINEERING, vol.94, no.2, pp.117-124, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94 Issue: 2
  • Publication Date: 2012
  • Doi Number: 10.1007/s00202-011-0224-4
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.117-124
  • Istanbul Technical University Affiliated: Yes


This study presents our findings on the ferroresonance phenomenon for the Seyitomer-Isiklar part of the Electric Power System of 380 kV in Turkey. In this context, the power spectral density approach and Short-Time Fourier Transforms are applied to the voltage variations for phase R of the sample power network. The findings show that the ferroresonance event can be represented by the interharmonics between 50 and 250 Hz, as well as statistical properties. In addition, a histogram of the ferroresonance region shows a different characteristic from the overall data and the non-ferroresonance region. This different characteristic can be defined by an asymmetrical distribution characteristic, and its numerical measure is given by the "Noise to Signal Ratio" of 0.624.