Modified centrality measures of power grid to identify critical components: Method, impact, and rank similarity

This paper justifies the criticality of nodes in a power system found from previous analysis. Critical nodes are identified from complex network theory based modified centrality approaches whose failure would stress the system badly in terms of line overloading. Impact of removal of critical nodes on two different standard test systems are analyzed. Simulation results suggest that these indices do not change with continually varying power system load and generation.