Integration of synchronous compensator in Terna's remote control and remote operation system

Inertia and short-circuit power are key prerequisites of grid stability and their availability is fundamental for the electrical system. As for the Italian grid, due to the large amount of renewables-based power generation, the forthcoming phase-out of thermal power plants, the deployment of new HVDC links and the extension of power supply systems to remote areas, it's paramount to guarantee the stability of transmission networks making use of alternative technologies. A very effective solution, in terms of contribution of short-circuit power, inertia to the transmission system and voltage regulation, is the installation of synchronous compensator (SC). In this paper a new approach for the integration of SCs in the TSO's remote control and remote operation system is described. This paper deals with the complex system of bidirectional interaction between the SC's local control system and the remote SCADA control system in terms of signals, measurements, setpoints and consequently the implementation in terms of special display in the SCADA HMI, with a focus on the participation to the voltage regulation system.