Research On Intelligent Substation Communication Network Management System Based On NFV

As an important part of the national energy industry chain,the smart grid integrates advanced information and communication technology,sensor measurement technology,automatic control technology,analytical decision-making technology and new energy power technology and power grid infrastructure to form innovative and modern intelligence grid.As an important node of smart grid construction,substation provides reliable node support and technical foundation for smart grid.At present,the substation station system basically uses the Ethernet networking technology to construct the intra-station communication network to realize the data exchange between the process layer,the interval layer and the station control layer according to the design idea of the IEC 61850 standard.The traditional communication network structure is designed for manual management,and the communication network management entity whose functions require a large amount of human intervention can be realized,and the communication network structure in this networking mode is opaque,and information transmission is invisible,thereby This has led to the lack of advanced and effective network management tools,resulting in special problems in communication network equipment and low utilization.Therefore,relying solely on Ethernet technology is difficult to support the operation and maintenance of the entire substation.In view of the current intelligent substation communication network architecture can not support the development of future networks well,Network Function Virtualization(NFV)as a new network architecture,its software and virtualization will break through the predicament of existing networks.It provides a powerful tool for network management and business transformation of smart substations.Aiming at the new generation intelligent substation communication network architecture,combined with the idea of NFV,this paper studies an intelligent substation communication network management system based on NFV.The main contents include: researching the adaptive network structure of a new generation intelligent substation,and analyzing the virtualization of network function.The self-management technology and the combination of the two complete the network configuration of the intelligent substation under the NFV environment,and realize the functional characteristics of the network management system.Finally,in the Linux system,the simulation experiment is used to simulate theNFV-based intelligent substation communication network structure,verify the availability of the NFV-based intelligent substation communication network structure,and implement the in-site network management system Features through the intelligent substation communication network management system software test.The test results prove the feasibility of the NFV-based intelligent substation communication network management system scheme,which can meet the functional requirements in the intelligent substation network management system,effectively improve the network management means,realize the decoupling of software and hardware in the intelligent substation,and reduce the system operation in the station.The cost of peacekeeping has good engineering value for improving the overall development of intelligent substation.