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A novel interpolated FFT algorithm based on convolution window

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

FFT algorithm is widely used in power system harmonic analysis. But in traditional FFT, big harmonic measurement error appeared caused by spectral leakage & hurdle effect while unsynchronized sampling. In this paper, an improved algorithm is introduced, a FFT with convolution windows and interpolated value is proposed to improve measuring accuracy of frequency, harmonic phase and amplitude through additional windows & interpolated corrective value. Guyuan Power Grid parameters of Ningxia Province were used into simulation analysis, the verification between simulation results and actual test reports show that: Improved algorithm effectively enhance the accuracy of harmonic measurement with very limited spectral leakages and hurdle effects, and meanwhile simplified the whole operation.

Original languageEnglish
Title of host publicationProceedings of 2012 IEEE 14th International Conference on Communication Technology, ICCT 2012
Pages1139-1142
Number of pages4
DOIs
StatePublished - 2012
Event2012 IEEE 14th International Conference on Communication Technology, ICCT 2012 - Chengdu, China
Duration: 9 Nov 201211 Nov 2012

Publication series

NameInternational Conference on Communication Technology Proceedings, ICCT

Conference

Conference2012 IEEE 14th International Conference on Communication Technology, ICCT 2012
Country/TerritoryChina
CityChengdu
Period9/11/1211/11/12

Keywords

  • convolution window
  • electrical power system
  • harmonic analysis
  • hurdle effects
  • interpolated FFT algorithm
  • spectral leakage

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