Laboratory-based test bed of a three terminals DC networks using power hardware in the loop

In this paper an experimental three stations MTDC power grid mock-up is presented and developed. The experimental platform is intended to combine electrical power components and communication/control equipment with real-time system simulation tools. A Real-Time Simulation (RTS) methodology with Power-Hardware-In-the-Loop (PHIL) capabilities are used to incorporate the transient reaction of the hardware under study without the need for developing a complicated numerical model, while the power system circuit can be purely simulated. A master-slave control strategy was used in the MTDC transmission system to control terminals VSC and some conclusions are drowning from the results of the real-time simulation and experimentation.