that future transmission and distribution systems will heavily rely
on digital and on communication technologies to operate. Indeed,
the power systems are evolving progressively towards what is
denoted as a cyber-physical system. This transition challenges
the classical approaches for experimental testing and requires the
development of testing platforms for cyber-physical systems able
to capture the interactions between physical components, control
and monitoring software and the communication infrastructure.
This paper presents general considerations and requirements
for a cyber-physical testing platform for power systems. The
paper provides also examples of a testing platform specifying
the characteristics of the major components and a summary of
the experience matured in its setup and configuration. Finally,
an example of an experiment on a notional smartgrid and the
related results are reported.