Research On Self-sensing Technology Of Electric Elastic Optical Network

With the construction of smart grid,energy Internet and power Internet of Things,the demand for data transmission in power communication networks has exploded.At present,the power optical network as the backbone of communication uses a fixed bandwidth allocation model,which causes a huge waste of bandwidth resources,which is not conducive to power.The development of communication networks.In view of this,combined with the research of the South China Grid Science and Technology Project in the field of Elastic Optical Network,this thesis studies the self-sensing technology and spectrum elastic allocation of the Electric Elastic Optical Network based on SDN(Software Defined Networking)architecture.It is of great significance for the development of power communication to study how to improve the effective utilization of power communication network resources through elastic bandwidth allocation.Firstly,according to the demand of spectrum dynamic allocation in the smart grid environment,the SDN communication architecture adapting to the multi-service access of the smart grid is constructed,and the flexible distribution of the spectrum of the power optical network is carried out through the accurate perception of the network and the service.Then,in order to provide real-time basis for load balancing based on load balancing,a network-aware model based on link state is constructed.Based on this,the fault location method for improving the stability of power-elastic optical network is studied,and then the fault perception model of electric elastic optical network based on parameter estimation is designed and verified by simulation.Finally,a service sensing model based on deep packet/flow detection is constructed.On this basis,the spectrum optimization allocation scheme for power elastic optical network for multi-service access is studied,and then a spectrum allocation method based on time-domain difference and frequency-domain continuity is designed.Its effectiveness is verified by simulation.On the basis of the above research,combined with the task schedule requirements of the scientific and technological project and according to the actual environment of Maoming Power Supply Bureau computer room,this thesis designs the application framework of the simulated elastic optical network in the intelligent distribution network and the verification scheme of the effectiveness of spectrum allocation.At the same time,it makes a long-term plan for the application of the elastic optical network technology in the power grid business scenario.