Data for "Towards Flexible Risk-Limiting Operation of Multi-Terminal HVDC Grids with Vast Wind Generation"

The 7-terminal MT-HVDC grid has 7 terminals, 5 GVSCs, 2 WVSCs, 7 HVDC lines, and is connected with 3 asynchronous grids. WVSCs 1 and 2 are respectively connected at DC buses 3 and 6. GVSCs 1 and 2 are connected to AC grid 1, GVSC 3 is connected to AC grid 2, and GVSCs 4 and 5 are connected to AC grid 3. AC grid 2 is assumed to have the lowest inertia. The system inertia and nominal/relaxed RoCoF limits of the three AC grids are given in Table I. spectively. The real power capacities of GVSCs 1-5 are 500, 500, 300, 500, and 500 MW, respectively. The contingency list includes all of the N-1 MT-HVDC contingencies, and the contingency probabilities of GVSC/ WVSC/ HVDC lines are assumed to be 0.003, 0.002 and 0.001, respectively.

The 12-terminal MT-HVDC grid has 4 WVSCs, 8 GVSCs and 17 HVDC lines. Five non-synchronous AC grids are connected to this MT-HVDC grid. The wind power injected to WVSCs 1 to 4 is 600, 600, 800 and 800 MW, respectively. It is assumed that GVSCs 7 and 8 operate in rectifier mode while other GVSCs operate in inverter mode in the pre-contingency state. The contingency probabilities of N-1 GVSC/ WVSC/ HVDC line outages are set at 0.003, 0.002, and 0.001, respectively.