Research On Intelligent Substation Architecture And Evaluation Technology For Power Data Communication Network

With the expansion,complication,networking,and intelligence of the secondary system of the power grid,and the development of IP-based communication services carried on the data communication network,the data network carrying services have the characteristics of multiple types,large traffic,and strong randomness.The traditional power data communication network has appeared various incompatibility in the aspects of flow processing,fault detection,and cooperative control.The "IP+light " collaborative management and control technology based on SDN technology has become a feasible solution.This paper conducts in-depth research on the multi-dimensional power data communication network architecture and evaluation technology under the background of power Internet of Things.The specific research carried out includes:First of all,this chapter starts from the power multi-dimensional data communication requirements,introduces the six services of the smart substation data communication network architecture,summarizes the main business characteristics of the power data communication network and its traditional architecture mode,and gives the technical characteristics of the communication network architecture under the background of the power Internet of things.Secondly,the third chapter introduces the basic concepts and structure of SDN technology,and studies the principles of SDN network fault location and recovery,flow monitoring and control principles.It is proposed to build a multi-dimensional data communication architecture based on SDN technology.The southbound interface is responsible for the communication between the infrastructure plane and the control plane,and NFV technology is used to complete the softwareization of various terminal hardware functions on general hardware;the SDN northbound interface is mainly responsible for control the communication between the layer and the application layer uses SNMP technology to provide network management functions.Then,based on the SDN technology-based multi-dimensional data communication architecture design and implementation plan,the SDN-based power IP +light network multi-dimensional power data communication architecture model is designed,and the control plan,operation and maintenance plan,protection plan,and traffic monitoring plan for the SDN communication framework are proposed.Finally,the power data communication network evaluation method is introduced,the comprehensive analysis adopts the analytic hierarchy process to evaluate the power data communication network network indicators,and the principle of the fuzzy analytic hierarchy process is explained in detail,and the power data communication network operation and maintenance management and control architecture evaluation model is designed.The operation quality weight of the communication network architecture is obtained by analysis,and the actual calculation example is analyzed.Through the above research,it can effectively ensure the reliable operation guarantee of the multi-dimensional power data communication network under the background of power Internet of Things,and improve the routing optimization ability between networks.The research has certain theoretical and practical engineering application value.