Enhancing the Robustness of Interdependent Power Grids and Communication Networks by Maximally Disjoint Dual Paths

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; then, the primary and backup paths are calculated according to the k-shortest-path algorithm, and a maximally disjoint dual path is configured to reduce the number of failed nodes when cascading failures occur. In addition, the robustness of an electrical cyber-physical system under the dual path method is evaluated. Case simulations on IEEE 14-bus and IEEE 39-bus systems indicate 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