A Sdn-based Intergated Energy Communcation System And Its Cyber Security

The integrated energy system(IES)is a hotspot in both academic research and industry application in recent years.The integrated energy system is a new energy system that integrates a variety of energy systems such as electrical system,cooling system and heating system,with high penetration rate of new energy devices and high penetration rate of energy storage devices.Compared with the traditional electrical power system,the integrated energy system has more types of data flow and larger scale of topo.The implement of Software Defined Network and Network Function Virtualization if a trend of computer network technology in recent years.SDN aims to enhance the programmability of computer network.SDN has advantages such as globalization,flexible and customization.This thesis includes three parts of research,architecture of system,routing and network anomaly detection.(1)This thesis has analyzed the communication requirements of integrated energy system.In this system,data flows are divided into different types according to the characteristics of different tasks.To effectively utlize the computing units and Io T devices in energy equipments,an architecture of SDN/NFV-based device-ad-hoc network is proposed.(2)This thesis has proposed a multi-path routing method based on the classification of data flows’tasks.Multi-path routing can improve the performance of data transmission between two nodes than traditional IP network and help the system effectively avoid"hot spots"problem for data transmission.Geographic information is used to accelerate the computation of routing as heuristic information,this thesis has used two types of heuristic algorithms,A~*algorithm and fringe search algorithm,to accelerate the routing calculation of the integrated energy system and increase the speed of routing computation.(3)Based on the research of the architecture,a mothed of IES commnunication security by Packet-In anomaly is proposed.The method uses Packet-In packets’statistics as the input,neural network as the algorithm to detect Packet-In anomaly on SDN’s control plane.It can be an effective network anomaly detection method that can protect both control plane security and data plane security.It is an effective lightweight,data-garthering-less method for anomaly-dection.This thesis has finished a series of researches including the architecture of IES communication system.Under the background of SDN-based system,a routing algorithm basing on tasks of data flows and a communication network anomaly detection method for IES communication have been proposed.All in all,this thesis has provided a systematic scheme for SDN-based IES communication and cyber security.