Author(s)

S. Cosmi, G. Alessandro, A. Luzi & G. Veca

Abstract

In this paper the authors highlight the main problems connected to the technological renovation of infrastructures applied for electrical supply of the contact line. This paper has been developed in co-operation with RFI (the Italian Railway Network), addressing with particular attention the railway electrical substations (ESS). The purpose of this study consists of the identification of some innovative technical solutions for the realization of 3kVdc ESS. In fact, to satisfy the increase of market demand for railway transport during the next 10 years, the whole Italian electrical railway network has to be radically improved. The authors briefly analyse the actual status of the RFI ESS structures, and point out the limitations of the traditional technologies. From this study, it is evident that there is a need to critically analyse two crucial aspects of the modernization: some strategies of interventions are proposed, with the purpose of achieving a convenient technical-economic management for the infrastructures. Keywords: railway electrical infrastructures modernization, railway electrical substation, railway electrical station, railway automation, railway PLC system. 1 Introduction For what concerns the renewal of the electrical energy distribution and transformation infrastructures for Italian Railways, the authors suggest major improvements to the actual conversion 3kVdc ESS and to the Electrical Stations (ES). This study suggests solutions and methodologies that could improve the quality handling of the electrical railways systems.

Keywords

railway electrical infrastructures modernization, railway electrical substation, railway electrical station, railway automation, railway PLC system.