Research On Development Planning Of Yucheng Distribution Network

Distribution network is an important part of the power grid,directly face to the power users,is an important infrastructure.With the rapid economic and social development,the demand for electricity grow rapidly,and continully the reliability of power supply is getting higher and higher,the rapid development of distributed power generation and diversified load,and the construction of "world-class power grid" give Power grid construction,higher requirements.It’snecessary to construct the reasonable,flexible and reliable,distribution comprehensively.To carry out the development of Yucheng distribution network research to Yucheng economic and social development of the status quo as the basis,combined with the city of Yucheng city overall planning,land use planning,"13th Five-Year Plan" development plan and so on,fully understand the status of Yu City Economic Society Level and future economic development trends,direction.Taking the 220kV power grid as the boundary,this paper analyzes the current situation of Yucheng power grid,and studies the current situation of 110kV,35kV and 10kV power grid according to the principle of sub-power supply area and sub-voltage level,from the general situation,the situation of grid equipment and the situation of power grid,Identify the weak links,find out the problem.This paper analyzes the historical powerload characteristics of Yucheng power grid,and forecasts the development trend of electricity and load in Yucheng through the natural growth method and the regression curve method.The elasticity coefficient method is used to verify the power consumption and Load development during the "13th Five-Year Plan" period.Based on the technical principles such as "Planning and Design Guidelines for Distribution Network" and "Construction of First-class Distribution Network",the development direction and target of power grid are clarified,and the existing problems of power grid are taken as the starting point.According to the principle of the sub-power supply area,and voltage level principle,rational planning 110kV,35kV,10kV power grid development direction,put forward the planning program.According to the planned scheme,and then the goal of the reconstruction of the distribution network is analyzed,the effect of the planning research is analyzed,the implementation of the planning technical principle is analyzed,and the effect of the voltage level planning is analyzed.The planning program reasonablly adjust Yucheng distribution network grid structure,enhance the distribution network operation safety,flexibility,reliability,and maximizly enhance the power supply capacity of low-voltage distribution network.It guide the construction of Yucheng distribution network to ensure the reliability of distribution network power supply.