Characterization of Supraharmonic Emission from Three Different Electric Vehicle Charging Infrastructures in Time and Frequency Domain

Tim Streubel, Christoph Kattmann, Adrian Eisenmann and Krzysztof Rudion
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Tim Streubel: Institute of Power Transmission and High Voltage Technology, 70569 Stuttgart, Germany
Christoph Kattmann: BSS Hochspannungstechnik, 70569 Stuttgart, Germany
Adrian Eisenmann: Institute of Power Transmission and High Voltage Technology, 70569 Stuttgart, Germany
Krzysztof Rudion: Institute of Power Transmission and High Voltage Technology, 70569 Stuttgart, Germany

Energies, 2022, vol. 15, issue 2, 1-19

Abstract: With the recent proliferation of electric vehicles (EVs), maintaining power quality within acceptable limits in future distribution grids will become a challenging task. A specific concern is the spread of Supraharmonics in the range from 2 to 150 kHz, generated by modern power electronic devices. In this paper, the long term Supraharmonic distortion from three differently sized electric vehicle charging infrastructures is analyzed in frequency and time domain. At the monitored sites several interruptions of EV charging processes were observed due to poor power quality. It was found that vehicles disconnect when exposed to high levels of harmonic distortion. Moreover, the impact of the charging EVs on the Supraharmonic distortion and the interaction with the background distortion for the individual sites is discussed. Results show that a general increase in Supraharmonics emission can be expected due to the rising number of EVs. However, measurements also indicate that damping effects can occur for certain load configurations.

Keywords: Supraharmonics; PQ monitoring; electric vehicles; interruption of charging processes (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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