Research on EMI characteristics of electric vehicle charging process

Radiated and conducted emissions are issues that arise during the charging process of electric vehicles. Through electromagnetic interference(EMI) testing of vehicles with various distribution parameters, charging currents, and phase number, it was found that charging current has minimal impact on radiated emission and conducted emissions. Changes in distribution parameters will cause variations in broadband signals of conducted emissions to correlate with the original test results. The radiated emission test results of single-phase AC charging are lower than those of three-phase testing.