Ricerc@Sapienza

The paper reports a methodologie approach to analyze a new layout of 3 kV DC railway substation. An evaluation about the substations' (ESSs) filter, in order to reduce the reactor encumbrance has been carried out. By means of simulations with different filter configurations, the proposed approach allows to verify that the harmonic content of the released current in the return circuit is compatible with the safety and signalling devices and to evaluate the effect of new configurations on the fault current.