Simulation of the Influence of Subway Vehicle Cable Radiation on Low-Frequency Magnetic Field in Passenger Compartments
This article focuses on the low-frequency magnetic field radiation problem in the passenger compartment of subway vehicles,with a focus on examining the influencing factors beyond onboard equipment.Although it is generally believed that the radiation from cables under vehicles can affect the magnetic field distribution in the passenger compartment,research in this area is relatively lacking.The article utilizes the Feko software platform,based on the design parameters of subway vehicles,to construct a model of cable tray and cable layout,and uses the on-site measured harmonic current values as the excitation input for simulation analysis.The magnetic field generated by the cable was simulated and analyzed by using cable radiation as the sole excitation source,and compared with the measured magnetic field values in type tests.Through simulation,it can be seen that the contribution of cables to the magnetic field in the passenger compartment is much lower than the total radiation measured at the same position in the type test.This provides a certain reference for dealing with similar problems.
rail vehiclesFekolow frequency magnetic fieldcable radiation
NETL
NSTL
万方数据
