Reliability Analysis Of Communication Business In Power Distribution Network

With the development of distribution automation,the reliability of distribution communication network has also been paid more and more attention.Reliability is an important index to measure whether the network can stably operate for a long time.The reliability analysis on power communication network is mainly focus on the reliability of the topology,the business transmission and the overall network.The topological structure reliability has more practical meaning which has a more uniform analysis method.With the deepening of the research,researchers begin to study the reliability of business transmission.The function of the communication network is to provide different types of business.Therefore,the analysis of business reliability can better reflect the performance requirements of communication business.Reliability analysis of communication business in power distribution network divided into two parts defined as analysis of wired transmission and wireless transmission.For the wired transmission mode,this thesis analyzes the structure,the type and the distribution of the business,and establishes the business transmission model of the distribution network.Considering the traditional analysis method based on the business quantity,this paper proposes a business reliability analysis method based on the traffic flow for distribution network.Simulation results and case analysis verify the feasibility of this method.For the wireless transmission mode,this thesis builds a unified transmission model on the basis of summarizing common transmission technology and transmission mechanism,and carries on the topology reliability analysis for this model.The reliability of the network is redefined,and a reliability analysis method of the wireless transmission mode is proposed based on the wireless transmission performance index.The advantages and disadvantages of the method are analyzed by simulation experiment and case study.