Abstract：In order to study the operating characteristics of onboard power net of high-speed maglev train，an

automated networking test system based on LabVIEW was developed on the basis of several independent onboard

power net test systems. Through the comprehensive simulation of the external power supply of the train，the

running speed of the train and the possible fault mode on the train，the ground combination test was realized after

the networking of the onboard power net equipment with different power supply system and different design

parameters.

      Key words：maglev train；onboard power net；automatic test；networking test