To Explore the Influence of Different Factors on The Potential Distribution of AC Power Subway Rails

With the rapid development of urban rail transit, AC power supply subway has gradually appeared in the public eye, and its rail potential distribution has attracted attention from all walks of life. In this paper, a CDEGS simulation model is built for a subway line in Guangzhou, and the distribution of rail potential under a single train station, a single train double station and a double train single station is simulated. When the end of the section where the train is located is disconnected, the voltage value of copper-clad steel and flat steel will increase dramatically; The operation of multiple trains in different sections is similar to that of a single train.