Fig. 9
From: Engineering structural robustness in power grid networks susceptible to community desynchronization
Line Additions Colored by Contribution to Stability. The NPCC 140-bus system with colored lines representing candidates for additions to the network. Their coloring denotes the extent to which they improved network stability relative to the original network. Green lines afforded the greatest improvement, while red lines left performance largely unchanged. The subnetworks obtained by community detection are colored in black, blue, and purple for reference. Line additions have been separated into a) connections between distinct communities, and b) connections within a single community