Electric vehicle charging – aspects of power quality and electromagnetic compatibility

Abstract

Electromobility is becoming an increasingly popular topic mostly thanks to its positive environmental impact. Replacing combustion engine cars with electric vehicles seems to be a matter of time. Electric cars have many advantages, but their impact on a power quality must be taken into consideration. The article describes current status of electromobility and problems related to the influence of charging stations on a power system. The issue of standardisation of electromagnetic compatibility requirements for charging stations is also discussed.

Electromagnetic Compatibility Testing of Electric Vehicles and Their Chargers

“…The EMC aspect of EV charging infrastructure is regulated by the two following standards [4]:  IEC 61851-21-1 [24] for on-board chargers,  IEC 61851-21-2 [25] for off-board chargers, which considers EMC pre-compliance test methods for either the charging device or the vehicle alone, but not their combined setup.…”

Assessment of the Electromagnetic Radiation Exposure at EV Charging Facilities

“…For this reason, studies on electromagnetic shielding are being conducted to reduce or block the electromagnetic field [ 7 , 8 ]. Studies on the EMC of EV charging using wireless power transfer have been studied in various environments [ 9 , 10 , 11 , 12 ], however, only a few research studies about the plug-in charging method exist [ 13 , 14 ]. Therefore, in a situation where charging facilities of various specifications are closely located around humans, it is necessary to evaluate the level of exposure of humans to electromagnetic fields from plug-in EV charging facilities to protect public health from damages caused by electromagnetic fields.…”