VVVF 인버터로 구동되는 전기철도차량에서 방출되는 시변 저주파 전자계 분석

Analysis of time-varying low-frequency electric magnetic field emitted from electric rolling stocks fed by VVVF inverter

This paper is described the analysis of time-varying low-frequency electric magnetic field emitted from electric rolling stocks fed by VVVF inverter, in reference to allowable magnitude for exposures to time-varying electromagnetic field issued by International Commission on Non-Ionizing Radiation Protection(ICNIRP). The level of the magnetic field strength was measured, in reference to the standard for occupational environments, which takes into account the public person's protection against the excessive emission of the low-frequency magnetic field, 5 Hz ~ 2 kHz.