Research On Distribution Network Planning Of Yanliang District,Xi’an

With the rapid economic development of Yanliang District of Xi’an City and the development of the first phase of the aviation base during the "13th Five-Year Plan" period and the second phase of the aviation base during the "14th Five-Year Plan" period,the demand for electricity load in Yanliang District has been increasing year by year,correspondingly exposed A series of problems such as grid structure,power reliability,and power supply capacity in Yanliang area.How to ensure the optimal development of the distribution network and the coordinated development of the construction of the distribution network and the demand for power loads puts forward higher requirements for the distribution network planning in Yanliang District.Therefore,it is particularly important to use scientific methods to predict the power load in Yanliang District,and to carry out the distribution network planning work in Yanliang District according to the predicted results,and to guide the construction of the distribution network project through planning has become particularly important.In this paper,the overall situation of the distribution network in Yanliang District,through the analysis and evaluation of the grid equipment of each voltage level in Yanliang District,the operation level,the reasonableness of the network frame and the ability to transfer supply,fully considering the development situation of economic development and the development situation of electric load demand in Yanliang District,starting from the load ratio,the capacity-load ratio and the "N-1" calibration index,using the spatial load density method,the large users plus the natural growth rate method and other electric load forecasting methods to carry out load forecasting work,through the results of analysis and comparison,and finally select the forecasting method with high accuracy.Finally,use the characteristic "grid" grid planning ideas,divide the Yanliang District into 8 power grids and refine 44 power supply units,transform complex regional planning to power supply network issues,points grid,The differentiated planning planning plan,final quantitative analysis of the actual results of the power network planning of Yanliang District to meet the economic development requirements of Yanliang District.