VOLTAGE CONTROL SYSTEM DEVELOPED INSIDE THE ITALIAN DEMONSTRATION OF GRID4EU: LABORATORY TESTS FIRST RESULTS

The Italian Demonstration of FP7 European project GRID4EU (www.grid4eu.eu), developed by Enel Distribuzione in partnership with Cisco, RSE, Selta and Siemens, is addressing the realization of an advanced control system to increase the Medium Voltage (MV) network hosting capacity of Distributed Generation (DG), thus maximising Renewable Energy Sources (RES) integration [1]. The core of the control system is a Voltage Regulation (VR) algorithm whose main features will be presented in the paper, along with VR off-line tests results. Furthermore, the paper will present the overall system integration tests that are being carried out, starting from the description of the laboratory set up and going through the first outcomes. The laboratory set up used for the overall system integration tests allows “Hardware in the loop” testing, thanks to real time digital simulation of the real power system.