Research On Distribution Network Planning Of "14th Five-Year Plan" In Mulan County

In recent years,the power grid has gradually developed radially toward the periphery,building a brand-new development area,and various functions in the old central area have gradually shifted to the new area.Combining the actual development situation,functional positioning and development goals during the "14th Five-Year Plan" period,Mulan County needs to carry out scientific and reasonable target grid planning to guide the construction and development of the power grid in a direction and purpose,which is of great significance to the development of power grid construction.Based on the actual power grid status and the development of the national economy in Mulan County,this paper makes relevant research on the power planning of Mulan County.It is mainly divided into the following three parts: First,analyze the basic situation of Mulan County,and discuss the land use scope and land use of Mulan County.The natural conditions and the development level of the power grid are summarized,the power supply area is divided,and the current usage of the 66 kV and 10 kV distribution network is analyzed to find out the problems in the power grid,such as: the load increases and the existing power grid cannot meet the load requirements The pass rate of line N-1 is low,mainly single radiation,the line diameter of some lines does not meet the demand according to the increase of load,one township and one change is not realized,and the power supply radius of the line is too long.Second,carry out forecast analysis on the load situation in Mulan County,analyze the historical electricity and load characteristics,and make a forecast of the load in Mulan County,and use the sub-industry forecast method and trend moving average method to predict the electricity consumption of the whole society.The natural growth rate method and the elastic coefficient method are used to predict the electricity load.And according to the development plan of Mulan County during the "14th Five-Year Plan" period,the development forecast of new energy and distributed power sources is made.Third,carry out planning and research on the distribution network of Mulan County,expound the planning goals,planning principles,and methods and theories used in the planning,carry out planning and research on the 66 kV and 10 kV distribution networks in Mulan County,analyze the grid supply load,and differ from each other in Mulan County.The area carries out substation planning,grid planning,and analysis of the scale of line construction.At the same time,according to the scale of the plan and the amount of engineering,the investment estimation of the distribution network plan of Mulan County is carried out,and the full text is summarized and prospected.Through the distribution network planning,the current problems in the distribution network of Mulan County have been solved.By the planning year,Mulan County will build a 66 kV Chengdong substation,renovate four main transformers,build 3 new 10 kV lines,and renovate 63 lines.Through planning and guiding the scientific and effective development of the power grid,it can meet the load growth and planning goals of Mulan County during the "14th Five-Year Plan" period.