Conference paper Open Access

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>", 
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    "title": "A Robust Measurement Method for Supraharmonics Under Power Frequency Deviations", 
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    "keywords": [
      "High frequency distortion, power quality, supra- harmonics, measurement techniques, voltage distortion"
    ], 
    "publication_date": "2020-05-29", 
    "creators": [
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        "orcid": "0000-0001-6095-3776", 
        "affiliation": "Fundacio \u0301n CIRCE", 
        "name": "Stefano Lodetti"
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      {
        "affiliation": "Technische Universitat Dresden", 
        "name": "Victor Khokhlov"
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      {
        "affiliation": "Technische Universitat Dresden", 
        "name": "Jan Meyer"
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        "orcid": "0000-0002-6067-6024", 
        "affiliation": "Fundacio \u0301n CIRCE", 
        "name": "Jorge Bruna"
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        "orcid": "0000-0003-2360-0845", 
        "affiliation": "Instituto Universitario de Investigaci\u00f3n CIRCE (Universidad de Zaragoza - Fundaci\u00f3n CIRCE)", 
        "name": "Julio J. Melero"
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    "meeting": {
      "acronym": "AMPS", 
      "place": "Aachen, Germany", 
      "title": "2019 IEEE 10th International Workshop on Applied Measurements for Power Systems (AMPS)"
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