Power quality indices for aperiodic voltages and currents

Sergio Herraiz, G. T. Heydt, Efrain O'Neill-Carrillo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


This paper addresses the subject of transient electric power quality problems. The quantification of power quality in terms of simple indices such as total harmonic distortion and other measures is revisited in terms of the windowed Fourier transform. This transform is a short term Fourier transform evaluated over a time window. The result is a set of new power quality indices which collapse to the familiar forms for the cases of periodic steady state, but which capture transient amplitudes for non-steady state applications. Applications are suggested.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Number of pages1
StatePublished - 2000
EventProceedings of the 2000 Power Engineering Society Summer Meeting - Seattle, WA, United States
Duration: Jul 16 2000Jul 20 2000


OtherProceedings of the 2000 Power Engineering Society Summer Meeting
Country/TerritoryUnited States
CitySeattle, WA

ASJC Scopus subject areas

  • Engineering(all)
  • Energy(all)


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