A dynamic simulation method for train ground return current

Abstract

The present invention discloses a train ground return dynamic simulation method. The method dynamically simulates the ground return performance of the subway train through subway train parameters, grounding system structure, traction state and line parameters. The method constructs a traction calculation module, a traction power supply system module and a ground return state analysis module. The method takes the train mass, real-time speed, real-time traction force, resistance and braking force of the train as inputs, and takes the potential distribution and return size of each observation point of the train as outputs to construct a train ground return dynamic simulation model. The method more accurately and dynamically simulates the ground return state of the train at each time and each position, improves the simulation accuracy, and provides a basis for detecting the weak end of the grounding system and improving the performance of the ground return system.

Images