Xincai County Distribution Network Development Plan Based On Reliability Of Power Supply At Distribution Level

The distribution network is located at the end of the whole grid structure,which has the characteristics of complex structure,large quantity of equipment and large difficulty in analysis.The planning and design of the traditional power grid usually solve the bottleneck problem of power supply bottlenecks by increasing the capacity of the substation and the number of the power supply circuit,Lack of reasonable and effective planning research.In order to improve and optimize the structure of the urban distribution network,improve the power supply capacity of the distribution network,improve the reliability of the power supply,reduce the network loss and improve the efficiency of the power supply enterprises.The provincial companies implement the "grid" lean concept and technology.Planning of Medium and Low Voltage Distribution Network.The planning based on the grid of the status quo diagnosis and optimization of distribution network structure,the grid to conduct a comprehensive assessment,analysis,and truly solve the problems existing in the grid to improve the reliability of the grid,a reasonable layout of the pressure distribution network.So that the distribution network to meet the power supply needs and development needs at the same time,so that resources to achieve the most reasonable use."Grid" plan through the refinement of the problem analysis,standardized networking,lean project proposed,focus on building a safe,reliable,durable,intelligent interaction of modern urban distribution network.Planning results can be used as power grid project reserves,power facilities relocation,an important basis for user access.Simplify,optimize and improve the existing 10-kilovolt power grid,to build a typical 10-volt network type,to meet the full coverage with the construction conditions,but also an important goal of grid planning.According to the company's plan to strengthen distribution network planning and management,combined with the rapid growth of electricity demand,this paper briefly analyzes the power grid structure,installation level,power supply capacity,transfer capacity,and underground gallery construction of Xincai County,and points out that the The main problems in the distribution network.Combining with the status quo of power grids in the Xincai planning area,planning and construction of the high-voltage power distribution network in Xincai County from 2016 to 2020,and the planning and design guidelines of the distribution network,focusing on the concept of grid planning,the 10 kV power grid planning technical principles are clearly proposed.After forecasting the future power demand of Xincai County,a distribution network planning scheme suitable for the development of Xincai County in the next few years will be formulated to better guide the distribution network construction from 2016 to 2020 and guide the “13th Five-Year Plan” period and The construction and transformation of the urban distribution network in the medium and long-term will ensure that the urban distribution network is coordinated with the urban socio-economic development and urban planning development.