Research on End-to-End Reliability Evaluation Index System of Power Backbone Optical Communication Network

The power backbone optical communication network is a crucial infrastructure that supports the production control operations of the large power grid. Its ability to operate stably is vital for enhancing the reliability of the power grid operation. With the construction of new power systems and the increase in the volume of grid-carrying services, the composition and operation of the power backbone optical communication network are becoming increasingly complex. Therefore, we need a reasonable, objective, and comprehensive reliability evaluation system to systematically evaluate the end-to-end reliability of the power backbone optical communication network, timely identify potential instability factors, and guide the operation, maintenance, and optimization design of the network. In this paper, we conducted an analysis based on the topology structure of the power backbone optical communication network in Fujian Province and proposed a reliability evaluation index system consisting of six first-level indexes. These indexes include network operational performance, channel redundancy, equipment/fiber cable utilization, equipment health status, operation and maintenance, and comprehensive management statistics. To determine the weights of these indexes, we also conducted a questionnaire survey among experts in the field of power backbone optical communication networks. This index system is closely aligned with practical engineering and holds significant importance for the reliability evaluation of the power backbone optical communication network.