Fault Diagnosis And Load Transfer Technology Based On Data Fusion

The distribution network has many types of equipment,large quantity,wide coverage,and it is difficult to troubleshoot.These factors directly lead to long fault lookup time after failure trip and reduce the reliability of power supply.In order to solve the above problems,we must seek effective technical means to make up for the lack of fault finding.In addition to improving the level of on-site personnel fault detection,the use of distribution network dispatching and operation intelligent management and control system as an auxiliary tool can effectively improve efficiency,achieve rapid processing,rapid power recovery effect.Under this background,this paper carries out the research on the technical system of distribution network,expecting to improve the operation parameters and data quality of power grid to ensure the observability of dispatchers and operators to the power grid by means of multi-dimensional data cleaning and identification,coordination of large-area load transfer and fast fault diagnosis based on data fusion.On this basis,the power failure time can be reduced by improving the fault diagnosis ability and the fast recovery ability in the case of large area blackout.In the course of the study,combined with the actual situation of Guangzhou distribution network and the problems encountered,solutions are proposed to improve the efficiency of fault handling and reduce the time of fault handling.Firstly,this paper reviews the research status and development trend of distribution network integrated system at home and abroad,and then makes a brief introduction to the technical principle of this project.Guangzhou power grid as a super-large city power grid,with the development of economy,the scale of distribution network is expanding,and the reliability of distribution network is becoming more and more prominent.From the current situation,there is still room for improvement in several key factors supporting the reliability of distribution network power supply.It will take a long time to restore power supply in the case of large area blackout,and there is a large monitoring blind area in the distribution network.The reasons for this are analyzed.At present,the development of relay scheme for voltage-losing equipment is in the modeling stage,only considering simple conditions and simple constraints,which is still far from practical application.The development of automatic generation of relay scheme function must be oriented to large-area accidents to have practical value.It is clear that if the transfer scheme is to achieve greater value,it must deal with the blackouts in large areas.However,no mature products have been able to achieve all of the above functions.In this paper,Based on the above problems and combined with the actual situation of Guangzhou distribution network,this paper analyzes the feasibility of the technical system of distribution network in depth,and puts forward the scheme of its future reconstruction by using the existing technical means,so as to make it a set of fault diagnosis according to the real-time operation of distribution network,and can automatically generate large-area supply transfer.Power distribution network technical support system.