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A Robust Measurement Method for Supraharmonics Under Power Frequency Deviations

Stefano Lodetti; Victor Khokhlov; Jan Meyer; Jorge Bruna; Julio J. Melero


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{
  "description": "<p>Abstract&mdash;This paper introduces a new measurement method for supraharmonic distortion with improved robustness against power frequency deviations. The proposed method is based on wavelet analysis and it is designed to analyze a 10 cycles measurement interval. Fourier-based methods, instead, must analyze a fixed 200 ms window in order to avoid apparent shifts of the supraharmonic frequency components. The results of the experimental measurements presented in the paper show that the Fourier-based method suggested in IEC 61000-4-7 standard produces results affected by the value of the power frequency. The proposed method, instead, provides results completely inde- pendent of the power frequency. This feature also removes the need of a previous high pass filtering stage, required for the IEC method. Moreover, the proposed method has the additional advantage of working on the same measurement interval as traditional harmonics (below 2 kHz), feature that can reduce the complexity of measurement instruments.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Fundacio \u0301n CIRCE", 
      "@id": "https://orcid.org/0000-0001-6095-3776", 
      "@type": "Person", 
      "name": "Stefano Lodetti"
    }, 
    {
      "affiliation": "Technische Universitat Dresden", 
      "@type": "Person", 
      "name": "Victor Khokhlov"
    }, 
    {
      "affiliation": "Technische Universitat Dresden", 
      "@type": "Person", 
      "name": "Jan Meyer"
    }, 
    {
      "affiliation": "Fundacio \u0301n CIRCE", 
      "@id": "https://orcid.org/0000-0002-6067-6024", 
      "@type": "Person", 
      "name": "Jorge Bruna"
    }, 
    {
      "affiliation": "Instituto Universitario de Investigaci\u00f3n CIRCE (Universidad de Zaragoza - Fundaci\u00f3n CIRCE)", 
      "@id": "https://orcid.org/0000-0003-2360-0845", 
      "@type": "Person", 
      "name": "Julio J. Melero"
    }
  ], 
  "headline": "A Robust Measurement Method for Supraharmonics Under Power Frequency Deviations", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2020-05-29", 
  "url": "https://zenodo.org/record/3865161", 
  "keywords": [
    "High frequency distortion, power quality, supra- harmonics, measurement techniques, voltage distortion"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1109/AMPS.2019.8897762", 
  "@id": "https://doi.org/10.1109/AMPS.2019.8897762", 
  "@type": "ScholarlyArticle", 
  "name": "A Robust Measurement Method for Supraharmonics Under Power Frequency Deviations"
}
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