This paper presents a study of train performance simulation for inverter-controlled asynchronous drives in DC railways. This type of equipment is new in Brazilian railway and subway systems and the need to model and to simulate became an important issue and the aim of this paper. The development of the model is based on electric railway traction theory for train dynamics, on inverter-fed induction machine control and induction machine theory to calculate the input line current from power supply, the most important result. As an example, a modeling and simulation of one train is shown. The analysis of the results shows that the input line current from power supply may be obtained by a simplified model. This hypothesis is studied, the results are compared and the simplified model is then validated.
Electric railway traction; train performance simulation