Research On Ways Of Improvement Of The Transport Networks Serving For Shijiazhuang Electric Power System

Nowadays the data carried on the transport network in electric power system has mainly changed from TDM signal to packet data.The transport network in service can not fit such changes and barely support the packet data.This could bring huge waste on investment and the bandwidth of the network links.According to the Telecom transport network,and the demands of some special signals of the electric power system,we made a intensive study of the modification of the transport network in electric power system and tried to make its topology more reasonable and improve its performance,for what we do was to ensure the safely and economically transmission of various signals and data in the electric power system.Firstly,this paper analyzed the current situation of the transport network of Shijiazhuang electric power system,especially on advantages and disadvantages of the popular networking technologies and methods such as SDH/MSTP,IP/MPLS,PTN,how they had been caused and the traditional ways to solve them.It deeply analyzed the main feature of the client data carried on the transport network and their demand for the network.From the view of the clients,the paper made a thoroughly scan on the transport network and specially did a detailed analysis of the access device,flowing of the data,demand of the bandwidth and the delay of the transmission in time domain.It made some claims on the transport network construction.Secondly,this paper compared the current poplar transport network technologies on many sections including transmission capacity,multi-service transport capacity,efficiency of the bandwidth using methods,protection and recoving capacity and the OAM(operation,administration,maintaince).It studied the application of all the above technologies and combined the studying on the client data carried on them,bringed up four opinions using on the analysis of the transport networking: based on the sources;client oritented;hierarchical networking;reasonable device selection.Based on the four opinions,it bringed up three networking ways and detailedly introduced the technical combination,network topology and the model of the networking.Among them,it made a particular introduction on the PTN networking technology which was not extensively used in communication network of the electric power system.Lastly,it studied and compared the three transport network technologies used in the transport network of Shijiazhuang electric power system,especially on the theory,device,network structure,friendly client data etc.It made a list of three combination of these technologies that could be used and made a comparation in the practical work.From these,the paper made a conclusion: the SDH/MSTP+PTN in regional netwok/PTN in county network was the best solution to the modification and improvement of the transport network of Shijiazhuang electric power system.It proposed solution for the more safe,efficient and extendable transport network serving for the Shijiazhuang electric power system.