Vulnerability Analysis of Power Grids Using Modified Centrality Measures
Figure 3
Test power grid multigraphs (a) , (b) , (c) , and (d) . Nodes are scaled as a function of the MW injected (generators, green dots) or withdrawn (loads, red dots). Since transmission nodes inject zero active power, they are scaled to zero but can be recognized as junctions or direction changes of lines, for example, nodes 11 and 7, respectively, in (a).
