Experimental evaluation of an hybrid communication system architecture for smart grid applications

In this paper a new communication system architecture is proposed for the development of a SCADA system which can remotely monitor and control intelligent electronic devices (IEDs) connected to the low voltage distribution networks, i.e low voltage smart meter (SM), interface protection devises (IPS). New distributed metering systems and interface devices, together with a proper communication infrastructure (HiperLAN and narrowband power line communication (NB-PLC) on low voltage network), have been developed to allow monitoring the whole power system and controlling the distributed generators of a Smart Grid also in the presence of harmonic distortions. In this way, the electrical energy distribution operator (DSO) would be able to monitor the distribution network and to take decisions to maintain the stability and the power quality of the electrical system. Experimental tests have been carried out in the pilot smart grid of the island of Favignana.