Research on multi-layer survivability inter-level coordination planning of power communication network

The power industry is an important energy pillar industry in the country and is the basis of our daily work and life. Power communication network is a special communication network in the power system, carrying all the power production and management business. The normal operation of the power communication network is related to the safety and stability of the whole power grid. With the power communications network business continues to increase, the performance requirements of data transmission also increasing. Power fiber is a key part of the power communication network, reliability and stability of the entire power grid has an important impact. Relying on manual processing of communication network resources and the implementation of dynamic management, has been unable to adapt to line equipment, large variety, rapid changes, complex management and so on. Once the power fiber failure, it will cause communication interruption, especially the relay protection business interruption, may cause power grid accidents, resulting in significant losses. In order to reduce the risk of fiber failure, optical network survivability mechanism has been widely concerned and studied. Based on the existing optical fiber transmission technology and power line carrier technology, this paper proposes a two-layer communication network and establishes an inter-layer coordination mechanism to enhance the survivability of the optical fiber transmission network so that the communication service can get better after the fiber failure The recovery effect.