Assessment of RMS Computation in Terms of Power Quality Event Detection

Balouji E., SALOR DURNA Ö.

23nd Signal Processing and Communications Applications Conference (SIU), Malatya, Türkiye, 16 - 19 Mayıs 2015, ss.2396-2399 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Doi Numarası: 10.1109/siu.2015.7130364
  • Basıldığı Şehir: Malatya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.2396-2399


In this paper, work on assessment of root-mean-square (RMS) computation recommended in the IEC Standards for power quality event detection with respect to various signal parameters. Correctness of the RMS computation in the standard IEC 61000-4-30, has been tested for power system frequency deviations, point-on-wave changes and phase differences between the fundamental frequency and harmonics in cases of both no harmonics and with harmonics. It has been shown that point-on-wave has negligible effect on RMS errors; however, frequency deviations and phase differences can significantly effect the RMS error, upto 0.3% even in the case of a single harmonic presence. It is recommended that the RMS computation method given in the IEC Standard 61000-4-30 should be assessed based on signal composition for the correctness of power quality event detection.