Research On Planning Of Urban Smart Distribution Network Based On Grid Division

As the State Grid Corporation accelerates the development of the grid,Enhance the structural optimization and upgrading of power grids at all levels,State Grid Corporation proposes to build a "world-class" modern distribution network in 2020,According to the State Grid Corporation,the overall development strategy of building a strong smart grid,The level of self-healing control directly affects the power quality of the grid to users.Optimization of grid structure in urban distribution network construction in China,To achieve self-healing control to build a segmented contact configuration that meets the requirements,etc.Therefore,Strengthening urban gridded intelligent distribution network planning research has important theoretical significance and engineering practical value.Firstly,on the basis of detailed description of the planning objectives of the primary distribution network and equipment and feeder automation of the intelligent distribution network,the integrated construction scheme of feeder automation and distribution network regulation is given.The grid structure of the distribution network of the proposed distribution network is analyzed.The status quo of distribution automation and load demand,and analyze the main problems in the planned distribution network.Secondly,in-depth discussion of the "grid" distribution network planning method,proposed a functional area,grid,unit" three-tier structure model,establish a three-level network system and develop functional area,grid and power supply unit three-level name coding According to the electricity demand and geographical status of the land in Zaozhuang High-tech Zone,the functional area,power supply grid and power supply unit are divided into three levels.The typical load of users of different land use types in the power supply area of Zaozhuang High-tech Zone is analyzed.The space load prediction method is divided into the load forecast for the saturated year and the near and middle.Finally,on the basis of detailed description of the 110kV distribution network planning in Zaozhuang High-tech Zone,combined with the functional areas,grids,and power grid status,load forecasting,local planning,geographic location and other factors in the high-tech zone,each functional zone The following grid develops a lOkV planning plan;the planning effectiveness is analyzed and the target grid is verified,and the results can meet the urban gridded intelligent distribution network planning requirements.In summary,on the basis of the urban control planning construction plan,combined with the actual distribution network of Zaozhuang High-tech Zone,the rational layout of the sub-districts is proposed,and the three-layer structure model of "functional area,grid and unit" is proposed The grid method is used to realize the accurate distribution of electricity demand in various blocks and districts;the grid structure is gridded,the grid structure of the urban distribution network is optimized,the grid planning is scientific and reasonable,and the distribution network is improved.Power supply capability and safety and reliability.