The wide diffusion of Distributed Generation (DG) represents a possible development of modern electrical systems that can evolve towards “Smart Grids”.
In fact, Smart-Grids should manage energy production and loads in a smart way, through appropriate communication systems and applications to be designed for the scope.
Moving in this direction, Enel Distribuzione, built up a new centre in Milan to carry out research and development activity on smart grids, adopting simulation systems and innovative instruments.
In particular, a real time digital simulator (RTDS) is being used to study the behaviour of the network in critical situation and to test the interaction with the devices to be developed .
This paper is focused on the simulation activity taking place on RTDS and some preliminary results are presented.