Virtual Power System: Novel approach for Distributed Generation and Consumption Coordination

Abstract

Worldwide the introduction of dispersed

generators (DG) in the distribution network is assuming a

significant importance. There is an increasing relevance of the

energy process efficiency improvement; as for electric power

systems, the most interesting perspective concerns the

capability of the system to increase the exploitation of the

renewable resources. The integration of DGs in the electric

distribution network requires a revision of this infrastructure, so

far designed and developed assuming that power flows in one

direction: from the high voltage transmission network to the

medium voltage distribution, to reach final customers on the

low voltage network.

The attention to an efficient operation of distribution networks

is increasing all over the world; this interest is becoming higher

and higher also in Italy, where the high energy prices push in

the direction of fostering efficiency as much as possible.

This work describes a study developed in the Alpenergy project

framework: an International Cooperation Program aimed at

introducing an efficient operational model for the distributed

production and consumption. In particular it is proposed a new

model for the integration and the management of the DG in the

distribution network. The new model (defined VPS: Virtual

Power System) is based on a communication channel between

the active users (generators), the loads and, eventually, the

Distribution System Operators (DSOs).