Application Of EPON Technology In Power Grid Distribution Network Communication System

With the scale of the power grid getting larger and a better power quality requested by the users,State Grid Corporation put forward the development strategy of smart grid andprovides customers with high quality,reliable electri cal power.Grid with grid communication system automation is an important part of the smart grid construction,the design of the communication channel is the key to the design of communication systems,so the construction of large capacity,high stabilit y of the private network remote communication channel with the information collection system in the power also particularly important.Firstly,this paper expatiates the background and the significance of the subject,and analyzes the current situation of communication network of the distribution automation system,compares the distribution network of several existing mainstream communication modes,it briefly discusses and analyses the technology of EPON,especially it analyses the feasibility in the use of the communication system in distribution automation system.So,EPON integrated the advantages of passive optical network,and can be no-slot joint with Ethernet technology.EPON technology,as a kind of point to multipoint optical communication technolog y,is very suitable for the construction of remote communication network.This paper takes the technology of EPON to design the system of medium low voltage power distribution automation communication.According to the characteristics of the network topology,it analysis the selection of passive optical sputter,and it analyses the rationality of the network by calculating the optical link loss;according to the characteristics of the medium low voltage distribution network and different network topology structure,it designs the network configuration;and it designs the number of optical fiber core configuration from the perspective of project investment construction and the cycle of network operation.This article designs a system which in the face of medium low voltage distribution circuit of communication by using the EPON technology to satisfy the implementation of the medium low voltage distribution line equipment communication,which leads to the effectiveness and reliability of the distribution automation data in the medium low voltage distribution side.Finally,it realizes the power distribution automation business to the extension of medium low voltage power distribution in the side.Lastly,based on the analysis of the current situation of communication network of the distribution automation system,impiementation principles of the EPON technology and the uses of EPON in Distribution Communication Network,this paper considers the typical preliminary design of the communication system in the Ordos region of Inner Mongolia,a reasonable scheme is proposed.The construction results show that EPON technology is relatively simple to operate.Its cost is low andit can be easily adapted with power grid automation system in distribution substatio n automation terminal to the level of technology and user requirements.