he four-bus HVDC grid test system can be used as standard test system for HVDC power system studies in EMT-type software. The PSCAD simulation files contain a pre-made HVDC grid with 4 converters, connected by a meshed DC grid with five cables. The size of the HVDC grid allows to run the model also in the educational version.
A control and protection system for the HVDC grid is implemented, but can be easily modified. A full description of parameters and model components is given in this paper.