Calculation and Analysis of Communication Network Survivability in SCADA Communication System

The power optical communication network is a dedicated communication network serving power grids, and its survivability is critical to the safe and stable operation of power grids. In this paper, the reliability of communication networks is analyzed, and a set of probabilistic shared risk links that can accurately measure the probability of service failures is calculated; Finally, based on the probabilistic risk management link set, three shared development path algorithms with different reliability are proposed. This article carries on simulation calculation and comparative analysis of these three typical algorithms to the CERNET network topology for specific business. This is of great significance for ensuring the safe and reliable operation of the grid system and reducing the occurrence of large-scale grid accidents.