Large-scale fault recovery method of power communication network under typhoon disaster

The scale and structure of the power communication network are becoming larger and more complex, and large-scale natural disasters such as typhoons pose a serious threat to the modern power communication network, so it is particularly important to quickly restore the normal communication of each substation after the failure. In this paper, the wind field model model is carried out to model the typhoon, and the failure probability of the communication link is calculated according to the maximum wind speed radius of the typhoon and the distance of the communication link from the center of the typhoon. Secondly, with the goal of minimizing recovery resources, a mathematical model of rapid recovery algorithm is established. Thirdly, an approximation algorithm based on the cost-effectiveness of fault links is proposed to solve the mathematical model. Finally, combined with the specific network topology, the recovery resource consumption of different fault recovery methods under the same fault scale is analyzed, and the experimental results show that the proposed method consumes less recovery resources than other methods when recovering the same number of faults.