Probabilistic method for harmonic analysis in railway system

The paper deals with the applications of probabilistic methods to the harmonic analysis in currents and voltages present in railroad power supply systems. The theoretical study is applied to a real case of a dc traction railway in operation in Italy. The results show the possibility to represent the system with a normal distribution and highlight the main parameters that have to be evaluated. At the end, some examples are reported as application of the used probabilistic model.