Application Of Network Reconfiguration In Enterprise Distribution Accident

With the development of large and super large enterprises,the capacity and scale of the enterprise distribution network is more and more big,and the distribution network is an important part of the power system,more than ninety percent of the power accident is related to the distribution network.The current enterprise distribution network equipment level is relatively low,and sometimes it can’t meet the requirement of power supply stability for enterprise.Distribution network reconfiguration is an important means to guarantee the power supply,and it is an indispensable part of the enterprise distribution network management and control system.In this paper,the principle and working mode of automatic fast transfer device M4272 in industrial enterprise is studied.According to the practical application of the device,the parameters are adjusted,and the data in the process of automatic fast transfer are analyzed.In the aspect of modeling,this paper establishes the multi-objective optimization model of the minimum economic loss,the minimum network loss and the shortest fault recovery time,which considers the radial constraint conditions of system,the continuity constraint conditions of system,the line capacity constraint conditions of system.In the aspect of model algorithm,this paper uses the improved genetic algorithm to solve the multi-objective optimization model when distribution network fault.This paper analyzes the characteristics of the genetic algorithm in detail,and proposes a genetic algorithm model which considers the relative importance of the target.In this paper,the 33 nodes system and the 69 nodes system are used to simulate the failure recovery model of the distribution network.The simulation software MATLAB is used to build node system diagram,then deduce an optimal solution how to recover faulty distribution network.Compared with the result of practical application,it analyzers the feasibility of the distribution network fault restoration model,and the model how to help practical application.