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CZT-Based Harmonic Analysis in Smart Grid Using Low-Cost Electronic Measurement Boards

Author

Listed:
  • Giovanni Artale

    (Department of Engineering, Università degli Studi di Palermo, 90128 Palermo, Italy)

  • Nicola Panzavecchia

    (Institute of Marine Engineering (INM), National Research Council (CNR), 90146 Palermo, Italy)

  • Valentina Cosentino

    (Department of Engineering, Università degli Studi di Palermo, 90128 Palermo, Italy)

  • Antonio Cataliotti

    (Department of Engineering, Università degli Studi di Palermo, 90128 Palermo, Italy)

  • Manel Ben-Romdhane

    (COSIM Research Laboratory, SUP’COM, University of Carthage, Ariana 2083, Tunisia)

  • Amel Benazza-Ben Yahia

    (COSIM Research Laboratory, SUP’COM, University of Carthage, Ariana 2083, Tunisia)

  • Valeria Boscaino

    (Institute of Marine Engineering (INM), National Research Council (CNR), 90146 Palermo, Italy)

  • Noureddine Ben Othman

    (Innovation Department, ACTIA Engineering Services, Ariana 2088, Tunisia)

  • Vito Ditta

    (Department of Engineering, Università degli Studi di Palermo, 90128 Palermo, Italy)

  • Michele Fiorino

    (Layer Electronics s.r.l., 91016 Erice, Italy)

  • Giuseppe Del Mastro

    (Layer Electronics s.r.l., 91016 Erice, Italy)

  • Salvatore Guaiana

    (Institute of Marine Engineering (INM), National Research Council (CNR), 90146 Palermo, Italy)

  • Giovanni Tinè

    (Institute of Marine Engineering (INM), National Research Council (CNR), 90146 Palermo, Italy)

  • Dario Di Cara

    (Institute of Marine Engineering (INM), National Research Council (CNR), 90146 Palermo, Italy)

Abstract

This paper validates the use of a harmonic analysis algorithm on a microcontroller to perform measurements of non-stationary signals in the context of smart grids. The increasing presence of electronic devices such as inverters of distributed generators (DG), power converters of charging stations for electric vehicles, etc. can drain non-stationary currents during their operation. A classical fast Fourier transform (FFT) algorithm may not have sufficient spectral resolution for the evaluation of harmonics and inter-harmonics. Thus, in this paper, the implementation of a chirp-Z transform (CZT) algorithm is suggested, which has a spectral resolution independent from the observation window. The CZT is implemented on a low-cost commercial microcontroller, and the absolute error is evaluated with respect to the same algorithm implemented in the LabVIEW environment. The results of the tests show that the CZT implementation on a low-cost microcontroller allows for accurate measurement results, demonstrating the feasibility of reliable harmonic analysis measurements even in non-stationary conditions on smart grids.

Suggested Citation

  • Giovanni Artale & Nicola Panzavecchia & Valentina Cosentino & Antonio Cataliotti & Manel Ben-Romdhane & Amel Benazza-Ben Yahia & Valeria Boscaino & Noureddine Ben Othman & Vito Ditta & Michele Fiorino, 2023. "CZT-Based Harmonic Analysis in Smart Grid Using Low-Cost Electronic Measurement Boards," Energies, MDPI, vol. 16(10), pages 1-25, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:10:p:4063-:d:1145906
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    References listed on IDEAS

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