TY - GEN

T1 - Harmonic and Supraharmonic Emissions of Fast Charging Infrastructure

T2 - 27th International Conference & Exhibition on Electricity Distribution

AU - Wingenfelder, Manuel

AU - Frank, Daniela

AU - Hofmann, Lutz

A2 - Reese, Constantin

N1 - Conference code: 2023

PY - 2023/6/13

Y1 - 2023/6/13

N2 - With a continuously increasing number of charging infrastructure, electrified mobility becomes more usable. Fast charging of electric vehicles complies with the user’s demand of a short recharging time. Thus, fast charging infrastructure is established at many key infrastructure locations, that are often predetermined due to gas stations and main transportation routes. Because of economic competitors, an accumulation of multiple fast charging infrastructure types can occur at the same location. Since the used components and control concepts vary between the manufacturers, each fast charging infrastructure type leads to a different spectrum of harmonics, that may challenge both communication and electric equipment in future active power grids, if summed up. To evaluate the occurring harmonic spectrums during AC and in particular DC charging, measurements were carried out in four publicly accessible fast charging infrastructures in a major German city over nearly a year. This paper shows the resulting spectrum for voltage odd harmonics up to the 39th order and supraharmonics from 2 kHz to 9 kHz within 200 Hz bands as 10 min RMS values during charging. The harmonics are distinguished between values of the total active charging power. The results provide important insights to the evaluation of EV fast chargers concerning grid compliances and are expected to improve the understanding related to occurring HF spectra during active charging cycles.

AB - With a continuously increasing number of charging infrastructure, electrified mobility becomes more usable. Fast charging of electric vehicles complies with the user’s demand of a short recharging time. Thus, fast charging infrastructure is established at many key infrastructure locations, that are often predetermined due to gas stations and main transportation routes. Because of economic competitors, an accumulation of multiple fast charging infrastructure types can occur at the same location. Since the used components and control concepts vary between the manufacturers, each fast charging infrastructure type leads to a different spectrum of harmonics, that may challenge both communication and electric equipment in future active power grids, if summed up. To evaluate the occurring harmonic spectrums during AC and in particular DC charging, measurements were carried out in four publicly accessible fast charging infrastructures in a major German city over nearly a year. This paper shows the resulting spectrum for voltage odd harmonics up to the 39th order and supraharmonics from 2 kHz to 9 kHz within 200 Hz bands as 10 min RMS values during charging. The harmonics are distinguished between values of the total active charging power. The results provide important insights to the evaluation of EV fast chargers concerning grid compliances and are expected to improve the understanding related to occurring HF spectra during active charging cycles.

KW - Elektromobilität

KW - Schnellladeinfrastruktur

KW - Oberschwingungen

KW - Superharmonische bis 9 kHz

KW - Electromobility

KW - Fast charging infrastructure

KW - Harmonics

KW - Supraharmonics up to 9 kHz

UR - http://www.scopus.com/inward/record.url?scp=85181533031&partnerID=8YFLogxK

U2 - 10.1049/icp.2023.0261

DO - 10.1049/icp.2023.0261

M3 - Conference contribution

VL - 2023

T3 - IET Conference Proceedings

SP - 140

EP - 144

BT - 27th International Conference on Electricity Distribution (CIRED 2023)

Y2 - 12 June 2023 through 15 June 2023

ER -