A Resilient Scheduling Scheme for Power Communication Networks Considering Extreme Events

With the development of smart grid and the requirements of energy transformation, modern power system has become a typical cyber-physical system (CPS) highly dependent on information technology. Because the physical system and the information system have coupling characteristics, the failure of the information system will bring coupling influence on the physical system. This paper takes typhoon scene as an example, we first establish the model of power communication network based on the background of extreme events with small probability and large loss. Then, the importance evaluation method of communication nodes is established by using the optimal load cutting algorithm, and the reliability evaluation index of communication links under extreme events is proposed. Then, considering the importance index of communication node, the reliability index of communication link and the comprehensive cost of power communication network, we put forward the two-layer cooperative optimization model of power communication network. The model can ensure that the information flow of important communication nodes is allocated to more reliable communication links under the influence of extreme events, to improve the resilience of the system. Finally, combined with the typhoon path and wind speed forecast information, the typhoon risk resistance strategy of power communication network is put forward. In addition, similar research methods can be used for other types of extreme events.