Analysis On Reliability Of Energy Internet Communication Based On Complex Network Theory

Under the background of the sustainable growth of the global energy consumption demand,the dual pressures of resource depletion and environmental pollution have brought serious challenges to the economic and social development.In recent years,at home and abroad,the smart grid construction tends to mature,providing a technical basis for the efficient use of power energy.However,along with the extensive development of renewable energy and the access to the electrical transport network,the power network is facing an unprecedented development bottleneck,and the main performance is the stability and reliability of the system are challenged.Under this background,Energy Internet concept appeared,it realizes the efficient use of energy and the friendly development of the environment.Energy Internet is the 2th version of smart gird,in our country,based on the traditional backbone network,access to renewable energy systems,large-scale plug in electric vehicles,and the integration of the traffic network and natural gas network,Energy Internet is a complex network with high flexibility and real-time.its reliability requirements are also relatively increased.In recent years,the complex network theory has made a great breakthrough in the study of complex network system.Research on the reliability of power communication system based on complex network theory is becoming more and more popular,so it is a major breakthrough for the traditional research methods of power grid;compared with traditional electric power communication network,Energy Internet's communication network is a more complex network,more suitable for the use of complex network theory to study.Therefore this paper intends to use the complex network theory to analyze the reliability of the Energy Internet's communication network.Firstly,this paper studies the basic concepts of complex network theory and its characteristic parameters,and then analyzes the basic characteristics of the future energy Internet and the small world characteristics and scale free characteristics of the Energy Internet's communication network.Then,this paper presents a hierarchical analysis of reliability and overall assessment of the reliability of research methods,to analyze the reliability of Energy Internet's communication network.Among them,the reliability of the topological structure layer by using the method of invulnerability,survivability combination analysis.On this basis,the model of Energy Internet's communication network topological structure is simulated;the network model is compared with the AS level topology of the Internet and the power communication network topology in the United States from various parameters of the complex network level,so as to obtain the network model and the Internet have a number of similar characteristics,compared with the traditional electric power communication network,it is more suitable for the requirements of network communication.Finally,Energy Internet's communication model and a power communication network under random and deliberate attack,the comparison of reliability analysis from the invulnerability and survivability,it is concluded that the model of Energy Internet's communication network is more reliable than the electric power communication network.