Study on Electromagnetic Exposure Level of the AC Bus in Pure Electric Bus

The paper takes the AC bus of a Pure Electric Bus (PEB) as the exposure source, establishes an electromagnetic environment model consisting of three seating passengers and a standing passenger at different positions, the AC bus and the bus body. The distributions of the magnetic flux density (|B|) and induced electric field intensity (|E|) in the human body and vertical section of passengers at different positions are calculated when the speed is 30 km/h. The results show that the |B| of the human body at the four selected positions in this study are well below the ICNIRP limitations, the |E| in the skull, brain and trunk at the four locations is also significantly smaller than the exposure limits stipulated by the ICNIRP, but the maximum value of |E| in the scalp of the passengers B and C exceeds the magnetic exposure limits stipulated by ICNIRP. The study could supplement the basic data on the complex electromagnetic environment of PEB and provide reference for the development of electromagnetic protection in the carriage.