Simulation and Measurement of EM Radiation for Moving Maglev Train

In recent years, the safety of electromagnetic radiation to the exterior circumstance during the normal operation of maglev train has been paid more and more attention. In this paper, the electromagnetic radiation field of maglev train is modeled and simulated by using the multiconductor transmission line (MTL) method. Based on IEC standards, the EM radiation field measurement of the moving maglev train under different operating conditions are conducted. The results show that the radiation magnetic field from the maglev train is distributed periodically at 12 meters from 50kHz to 110 kHz, the maximum value of simulation is
$69.4\ \text{dB}\ \mu\ \mathrm{A}/\mathrm{m}$
, the measured value of the radiated magnetic field from the maglev train is less than 31 mA/m(
$90.6\ \text{dB}\ \mu$
A/m) in 1 Hz to 120 kHz. Our work can lay a foundation for the research of electromagnetic safety of new-type high-speed maglev train in China.