Study Of Fault Addressing And Restoration Reconfiguration Of Distribution Network

Distribution Automation is an important part of the power system, fault addressand restoration reconfiguration in distribution automation system plays a key role,which purpose is to find the fault detection and isolation area to restore power asquickly as possible when the distribution network failures. This paper focuses on thedistribution network fault addressing and restoration reconfiguration algorithms inorder to meet the requirements of distribution network automation.Based on the characteristics of the topology of distribution network, this papergives the mathematical model of distribution network and the digraph description andundirected graph description method of distribution network is studied. According tothe current matrix algorithm of large scale and complex process, a matrix algorithmbased on hierarchical description is investigated. As FTU installation workenvironment is relatively poor, may cause FTU reported missing or distortedinformation, the information directly affect the distribution network fault addressingjudgment. Insufficient information for FTU Upload faults and fault information isdistorted situation, missing information will be ignored, distorted fault information forthe consideration of the concept of using the modified and re-addressing fault, anumerical example of the feasibility of the algorithm.This paper combines the advantages of the real-time of heuristic search analysisand the multiple attribute decision of entropy weight principle, and studies a kind offault recovery method of distribution network based on heuristic search and entropyweight principle. According to the heuristic search method to obtain the initialfeasible solutions and candidate restoration schemes can generate. And then this paperuses entropy weight principle and each evaluation index to evaluate all the schemes,and gets the optimization scheme and the option. The subjective and objectiveweighting is introduced in the algorithm, which makes the evaluation results morecomprehensive and reliable. Calculation results of a distribution network with sixfeeders show the effective of the algorithm.