Optimization of Backbone Optical Network for Power Communication Based on Critical Link

The existing optimization algorithms for power communication backbone optical networks do not comprehensively consider the real-time performance of power communication services and the difference of substation voltage levels, and the optimization results are difficult to meet the actual needs of power communication networks. Firstly, this paper uses the link critical comprehensive index to express the characteristics of critical links, and designs a critical link identification algorithm; then, on the basis of link critical ranking, the network performance is optimized by using link redundancy and link expansion methods; finally, the feasibility and correctness of the method are verified by an example of provincial power backbone optical network. The research results have reference value for the planning, design and operation management of power communication network.