A Maximally disjoint Dual Paths Method to Enhancing the Robustness of Interdependent Power grids and Communication Networks

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In order to enhance the robustness of interdependent power grids and communication networks, the configuration of maximally disjoint dual paths in the communication network is proposed. The interdependency relationship between power grids and communication networks is established first, and then the primary path and the backup path are calculated according to the k-shortest path algorithm, a maximally disjoint dual paths is configured to reduce the number of failed nodes when cascading failures happen. And the robustness of electrical cyber-physical system under the dual path method is evaluated. Case simulations on IEEE-14 and IEEE-39 bus systems indicates that the proposed method can obtain better robustness of interdependent networks than other methods in the case of random and intentional attacks. The proposed method can provide guidance on current topics to improve the robustness of interdependent networks.