Power Flow Calculation of Vehicle Network Coupling in Traction Power Supply System

This paper presents an analysis of the fully parallel AT traction network using a six conductor transmission line. An equivalent model is derived and simulation models for traction substations, section posts, AT posts, traction networks, and electric locomotives are comprehensively built using RT-plus/Simulink to enhance the practicality of the simulation. Based on these models, a simulation software for electrified railway traction power supply system is developed using vehicle network coupling power flow calculation. The results of the example calculation demonstrate that this method effectively considers the interaction between the train and the traction power supply network, leading to a more accurate reflection of power flow distribution in the traction power supply system. So, the proposed method has significant application value in electrified railway engineering.