| Power grid planning is an important part of power grid construction.Scientific power grid planning is of great significance to guide power construction.The current load forecasting method is not scientific enough.The previous power grid planning is mainly determined by the experience of planners and lacks theoretical basis.Scientific and reasonable distribution network planning can ensure the safe operation of power grid equipment,reduce the failure rate of grid equipment and the amount of power lost during power outages.This article mainly studies the distribution plan of Zhaodong City,analyzes the current distribution network power supply situation,and formulates a scientific and reasonable distribution plan based on the technical principles of distribution network planning.In order to solve the problems of high load and low utilization rate of power grid in Zhaodong City,this paper first analyzes the power consumption level and current status of Zhaodong City,and then uses the load density index method and the proportional coefficient growth method The electricity load was predicted,and then the comprehensive electricity level method was used in combination with the load density of Zhaodong City to verify the electricity load results.Based on the power grid planning principles and distribution network planning goals,using the power balance calculation formula,combined with the distribution capacity and load capacity ratio of the power grid,a new planning and design of the grid and wiring methods of the 66 k V and 10 k V power grids were used and utilized The line loss assessment theory,combined with the line loss formula,verifies the power utilization rate of the optimized grid to ensure the feasibility and accuracy of the program.In summary,through load forecasting and scientific and reasonable power grid planning,a load forecasting model based on the load density method was established,and combined with the comprehensive power level method and load density to verify whether the forecast results are accurate,pass Optimizing the power grid lines to reduce the loss rate of the network,while solving the problem of excessive load,to meet the growth of residents and enterprises’ demand for electricity,and to play a corresponding guiding role in future power grid planning. |