Comparison of interpolation methods in time and frequency domain for the estimation of harmonics and interharmonics according to IEC standard

Author

Moreira Monteiro, Henrique Luis ; Rodrigues Manso Silva, Leandro ; Duque, C.A. ; ManhaÌƒes de Andrade Filho, Luciano ; Ribeiro, P.F.

Author_Institution

Univ. Fed. de Juiz de Fora, Juiz de Fora, Brazil

fYear

2014

fDate

25-28 May 2014

Firstpage

1

Lastpage

5

Abstract

The fast Fourier transform (FFT) is the most commonly used technique in power systems signals analysis. However, it is known that if the signal is not synchronized or in the presence of interharmonics, the spectral leakage may occur. To overcome this issue, several techniques are found in literature. The present paper will show a comparison between results of calculating the IEC 61000-4-7 harmonics and interharmonics groups and subgroups using two of these techniques, one that uses frequency domain interpolation and other that uses time domain interpolation.

Keywords

IEC standards; fast Fourier transforms; frequency-domain analysis; interpolation; power system harmonics; time-domain analysis; FFT; IEC 61000-4-7 harmonic groups; IEC 61000-4-7 interharmonic subgroups; IEC standard; fast Fourier transform; frequency domain interpolation method; harmonic estimation; interharmonic estimation; power system signals analysis; spectral leakage; time domain interpolation method; Harmonic analysis; IEC standards; Interpolation; Power system harmonics; Time-domain analysis; Time-frequency analysis; Fast Fourier Transform; frequency domain interpolation; frequency variation; synchronization; time domain interpolation;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power (ICHQP), 2014 IEEE 16th International Conference on

Conference_Location

Bucharest

Type

conf

DOI

10.1109/ICHQP.2014.6842892

Filename

6842892