A robust synchronization method for centralized microgrids

Microgrids represent one of the best candidates to redesign the architecture of the future distribution network. Such a model, in fact, promises to be able to properly manage a larger penetration of Distributed Energy Resources while improving the local production and utilization of energy. On the other hand, the control of a Microgrid is quite challenging, since the system has to be particularly reliable and flexible, due to the requested multiple and concurrent tasks to be performed. In this scenario the present paper proposes a novel solution able to synchronize the phase and the frequency of all the devices connected to the Microgrid in many different and complex ways. The proposed method, in particular, is based on the combined use of Phase Locked Loops and the 1 Pulse Per Second signal provided by any GPS device.