TY - JOUR A2 - Wang, Rui AU - Liu, Xin-Rui AU - Meng, Yuan AU - Chang, Peng PY - 2021 DA - 2021/01/16 TI - Node Importance Evaluation of Cyber-Physical System under Cyber-Attacks Spreading SP - 6641030 VL - 2021 AB - The study of cyber-attacks, and in particular the spread of attack on the power cyber-physical system, has recently attracted considerable attention. Identifying and evaluating the important nodes under the cyber-attack propagation scenario are of great significance for improving the reliability and survivability of the power system. In this paper, we improve the closeness centrality algorithm and propose a compound centrality algorithm based on adaptive coefficient to evaluate the importance of single-layer network nodes. Moreover, we quantitatively calculated the decouple degree of cascading failures caused by exposed nodes formed by attack propagation. At last, experiments based on the IEEE 57 test system show that the proposed compound centrality algorithm can match the cyber-attack propagation scenario well, and we give the importance values of the nodes in a specific attack scenario. SN - 1076-2787 UR - https://doi.org/10.1155/2021/6641030 DO - 10.1155/2021/6641030 JF - Complexity PB - Hindawi KW - ER -