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Supraharmonic and Harmonic Emissions of a Bi-Directional V2G Electric Vehicle Charging Station and Their Impact to the Grid Impedance

Author

Listed:
  • Bernhard Grasel

    (Competence Field Renewable Energy Technologies, University of Applied Sciences Technikum Vienna, 1200 Vienna, Austria)

  • José Baptista

    (Department of Engineering, School of Science and Technology, University of Trás-os-Montes and Alto Douro and INESC-TEC, UTAD’s Pole, 5000-801 Vila Real, Portugal)

  • Manfred Tragner

    (Competence Field Renewable Energy Technologies, University of Applied Sciences Technikum Vienna, 1200 Vienna, Austria)

Abstract

Bidirectional electric vehicle supply equipment and charging stations (EVSE) offer new business models and can provide services to the electrical grid. The smart grid lab in Vienna gives unique testing possibilities of future smart grids, as different type of electrical equipment can be operated at a reconstructed, well-known distribution grid. In this work the harmonic and supraharmonic emissions of a bidirectional EVSE are measured according to IEC61000-4-7 and IEC61000-4-30 Ed3 standard as well as the high-frequency grid impedance. In addition, the efficiency and the power factor are determined at various operating points. Although THD i at nominal power (10 kW) is very low and the efficiency and power factor is very high, at low power levels the opposite situation arise. Supraharmonic emissions remain stable independent of the charging/discharging power, and both wideband and narrowband emissions occur. The additional capacitance when connecting the EVSE impacts the high-frequency grid impedance substantially and generates resonance points.

Suggested Citation

  • Bernhard Grasel & José Baptista & Manfred Tragner, 2022. "Supraharmonic and Harmonic Emissions of a Bi-Directional V2G Electric Vehicle Charging Station and Their Impact to the Grid Impedance," Energies, MDPI, vol. 15(8), pages 1-27, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:8:p:2920-:d:794948
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    References listed on IDEAS

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    1. Tim Slangen & Thijs van Wijk & Vladimir Ćuk & Sjef Cobben, 2020. "The Propagation and Interaction of Supraharmonics from Electric Vehicle Chargers in a Low-Voltage Grid," Energies, MDPI, vol. 13(15), pages 1-20, July.
    2. Tim Streubel & Christoph Kattmann & Adrian Eisenmann & Krzysztof Rudion, 2022. "Characterization of Supraharmonic Emission from Three Different Electric Vehicle Charging Infrastructures in Time and Frequency Domain," Energies, MDPI, vol. 15(2), pages 1-19, January.
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    Cited by:

    1. Łukasz Michalec & Paweł Kostyła & Zbigniew Leonowicz, 2022. "Supraharmonic Pollution Emitted by Nonlinear Loads in Power Networks—Ongoing Worldwide Research and Upcoming Challenges," Energies, MDPI, vol. 16(1), pages 1-14, December.
    2. Nicholas D. de Andrade & Ruben B. Godoy & Edson A. Batista & Moacyr A. G. de Brito & Rafael L. R. Soares, 2022. "Embedded FPGA Controllers for Current Compensation Based on Modern Power Theories," Energies, MDPI, vol. 15(17), pages 1-17, August.
    3. 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.

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