Reliability Evaluation Of Distribution Network Based On Hybrid Method In Nanguan District Of Changchun

Distribution system occupies a very important position in the whole power system,and its reliability determines the reliability of the whole power system.Because the distribution network is the most closely connected between the power system and the users,the distribution network should be highly valued.But since the reform and opening up,the development of power distribution network in our country has been slow,and the reliability of power supply has been at a low level because of the more obstacles to the renewal and reform of the power grid.In recent years,the power industry in China has developed rapidly,and the scale of distribution network is becoming larger and larger.More and more network nodes,more and more long distribution lines and more and more changes of network structure have been followed,which have seriously tested the old power grid equipment and grid structure in China.With the development of society,new power consumption situation and methods are gradually rising,which put forward new requirements for the reliability of distribution system under the condition of power market.In order to develop the power distribution system,the power distribution system should be designed and planned to develop the power distribution system.To improve the accuracy of the failure rate and the rate of electricity consumption,the real time distribution network evaluation system should be developed,and the new information means should be used to analyze the reliability and build the theory model of the loss.In view of the current situation of Changchun Nanguan District power grid,in order to further improve the quality of the power grid and improve the reliability of the distribution network,the reliability evaluation method of the hybrid distribution network based on analytic method and Monte Carlo statistics is selected.The method is applied to the power distribution network in Nanguan District.Through the analysis and evaluation of the power grid situation obtained by the software,the measures to effectively improve the reliability of Changchun Nanguan District power grid are proposed,which provide the data basis and theoretical basis for the future power grid planning of Nanguan District in Changchun.This paper mainly considers the reliability analysis of medium voltage distribution network,that is,10(20,6)KV(hereinafter referred to as 10 KV)voltage distribution network.According to the research objectives mentioned above,this paper first introduces the content and background of the reliability of the distribution network through the research and data analysis of the previous research.Then,according to the historical grid data of Changchun Nanguan District,the current status of the power grid in Changchun Nanguan District is analyzed and the problems are put forward.Then the following details are introduced in this paper.The principle and algorithm process of the mixed method are used,and then the distribution network reliability analysis management system based on B/S architecture is put forward according to the requirement of enterprise information development.Finally,according to the construction management system,the distribution network of Nanguan District is analyzed,and the evaluation system suitable for the complex distribution network is obtained.