Research On Fault Location Of Distributed Power Supply Overhead Distribution Network

As the global energy situation of tension and environmental problems,distributed power generation with its low energy consumption,environmental cleanliness,power supply flexibility and other advantages gradually been scholars attention,and in recent years has been very rapid development and application.With a large number of distributed power distribution network access,make the distribution network structure and operation mode of the great changes have taken place,the existing fault location method are affected,and even wrong.It is one of the key tasks for the distribution automation system to be accurate and rapid.Fails when the distribution network,the system based on RTU and FTU intelligent terminal to upload data,determine the correct,real time fault blocks,location and isolation,to accelerate to achieve high reliability of power supply recovery,strengthen and significance.To solve the problem of distributed power distribution network fault location for improving power supply reliability distribution network and promote the development of distributed generation has the vital significance.Distribution network fault location is reviewed and summarized the domestic and foreign research results,from the perspective of distributed power load characteristic and short circuit current analysis,the fault location of distribution points network,this paper expounds the different distributed power capacity to the formation of the two kinds of grid,induces the distributed power distribution network fault location needs to consider the general principle,and the basic of traditional fault location reason is to improve,overcome the basic rules of fault location is not suitable for long distance,large capacity of overhead line fault location environment,puts forward the improved including distributed power fault location strategy.In the aspect of modeling,this paper introduces the source and function of the variable dissipative network structure,expounds the construction method and parameter determination of the variable dissipative network structure,and discusses how to realize the variable dissipative structure by using the simple overhead transmission line Modeling of Distribution Network Fault Location.Based on the improvement of the traditional bats algorithm,an adaptive bat algorithm(GBA algorithm)based on good point set is proposed,which is applied to the distribution of the distribution network with distributed power distribution based on variable distribution structure of distribution network fault location model Grid fault location model,an example of verification.The simulation results show that the model used in this paper is reasonable and the algorithm is feasible and has high fault tolerance.The simulation results show that the model is reasonable and the algorithm is feasible.