Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices
The analysis of power quality disturbances in distribution systems has gained significance with the diffusion of electric vehicles (EVs). Waveform distortions are interesting since EV currents introduce distortions with spectral components in both low and high-frequency bands. This paper develops sp...
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IEEE
2024-01-01
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| Series: | IEEE Open Access Journal of Power and Energy |
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| Online Access: | https://ieeexplore.ieee.org/document/10811949/ |
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| author | Antonio Bracale Pierluigi Caramia Giovanni Mercurio Casolino Pasquale de Falco Iqrar Hussain Pietro Varilone Paola Verde |
| author_facet | Antonio Bracale Pierluigi Caramia Giovanni Mercurio Casolino Pasquale de Falco Iqrar Hussain Pietro Varilone Paola Verde |
| author_sort | Antonio Bracale |
| collection | DOAJ |
| description | The analysis of power quality disturbances in distribution systems has gained significance with the diffusion of electric vehicles (EVs). Waveform distortions are interesting since EV currents introduce distortions with spectral components in both low and high-frequency bands. This paper develops specific indices to assess cumulative emissions from single-phase EV on-board chargers, extending the aggregation and diversity factors to the supra-harmonic range. The methodology accounts for variables such as EV charging powers, upstream network impedance, and number of EVs. A simplified time-domain model of a low-power unidirectional converter, commonly used for EV battery charging, is employed to balance circuit complexity and computational effort. This model allows for sensitivity analyses of key parameters influencing charger emissions. Numerical applications are carried out for both individuals and groups of EV chargers at a charging station. Results highlight the need for careful quantification of aggregated EV emissions, showing that supra-harmonic emissions are highly sensitive to variations in the power absorbed by EV chargers. Notably, their cumulative impact is much lower when chargers operate at different power levels than when all chargers operate at the same power level. These findings underscore the importance of accurately assessing the impact of EV charging on power quality. |
| format | Article |
| id | doaj-art-2ae8a9e0943f4518b25c1b8cb73cbac5 |
| institution | Kabale University |
| issn | 2687-7910 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Access Journal of Power and Energy |
| spelling | doaj-art-2ae8a9e0943f4518b25c1b8cb73cbac52025-01-21T00:03:21ZengIEEEIEEE Open Access Journal of Power and Energy2687-79102024-01-011169070210.1109/OAJPE.2024.352103010811949Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact IndicesAntonio Bracale0https://orcid.org/0000-0001-6038-573XPierluigi Caramia1https://orcid.org/0000-0001-8867-2781Giovanni Mercurio Casolino2https://orcid.org/0000-0003-2309-8584Pasquale de Falco3https://orcid.org/0000-0002-1119-1151Iqrar Hussain4Pietro Varilone5https://orcid.org/0000-0002-0938-9257Paola Verde6https://orcid.org/0000-0001-5932-9319Dipartimento di Ingegneria, University of Naples Parthenope, Naples, ItalyDipartimento di Ingegneria, University of Naples Parthenope, Naples, ItalyDipartimento di Ingegneria Elettrica e dell’Informazione “M. Scarano,”, Università degli Studi di Cassino e L. M., Cassino, ItalyDipartimento di Ingegneria, University of Naples Parthenope, Naples, ItalyDipartimento di Ingegneria Elettrica e dell’Informazione “M. Scarano,”, Università degli Studi di Cassino e L. M., Cassino, ItalyDipartimento di Ingegneria Elettrica e dell’Informazione “M. Scarano,”, Università degli Studi di Cassino e L. M., Cassino, ItalyDipartimento di Ingegneria Elettrica e dell’Informazione “M. Scarano,”, Università degli Studi di Cassino e L. M., Cassino, ItalyThe analysis of power quality disturbances in distribution systems has gained significance with the diffusion of electric vehicles (EVs). Waveform distortions are interesting since EV currents introduce distortions with spectral components in both low and high-frequency bands. This paper develops specific indices to assess cumulative emissions from single-phase EV on-board chargers, extending the aggregation and diversity factors to the supra-harmonic range. The methodology accounts for variables such as EV charging powers, upstream network impedance, and number of EVs. A simplified time-domain model of a low-power unidirectional converter, commonly used for EV battery charging, is employed to balance circuit complexity and computational effort. This model allows for sensitivity analyses of key parameters influencing charger emissions. Numerical applications are carried out for both individuals and groups of EV chargers at a charging station. Results highlight the need for careful quantification of aggregated EV emissions, showing that supra-harmonic emissions are highly sensitive to variations in the power absorbed by EV chargers. Notably, their cumulative impact is much lower when chargers operate at different power levels than when all chargers operate at the same power level. These findings underscore the importance of accurately assessing the impact of EV charging on power quality.https://ieeexplore.ieee.org/document/10811949/EV charging stationspower qualitywaveform distortionsupra-harmonicscumulative emission indices |
| spellingShingle | Antonio Bracale Pierluigi Caramia Giovanni Mercurio Casolino Pasquale de Falco Iqrar Hussain Pietro Varilone Paola Verde Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices IEEE Open Access Journal of Power and Energy EV charging stations power quality waveform distortion supra-harmonics cumulative emission indices |
| title | Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices |
| title_full | Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices |
| title_fullStr | Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices |
| title_full_unstemmed | Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices |
| title_short | Harmonic and Supra-Harmonic Emissions of Electric Vehicle Chargers: Modeling and Cumulative Impact Indices |
| title_sort | harmonic and supra harmonic emissions of electric vehicle chargers modeling and cumulative impact indices |
| topic | EV charging stations power quality waveform distortion supra-harmonics cumulative emission indices |
| url | https://ieeexplore.ieee.org/document/10811949/ |
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