Research On Nanchang Distribution Network Grid Structure

Nanchang city known as "China water city", the water area of2204.37squarekilometers, the total area of29.78%, with the size of the city water. The Ganjiang Riveris the Nanchang city is divided into "one river two sides". East of the river is flat, withthe load increasing, the additional power points, to extended. For West Lake and EastLake District, the old city Qingyunpu, load growth is slow, tends to saturation, and newlines and new substation is difficult, distribution structure should be based on the currentsituation, strengthen the contact, make full use of existing resources, improve load rateand power supply reliability rate; Nanchang East Lake Zone is a growth point load,should be according to the load demand growth, the recent to add line, and graduallyform the final grid structure.In this paper, Nanchang distribution network of existing structure as the research object,according to the analysis of the key technology of grid pattern, find the most suitable forNanchang distribution network structure model, the main research contents include:(1) the Nanchang distribution network structure model and the overall planning, on thisbasis, the network structure model of domestic and foreign research;(2) study on the utilization rate, load transfer and other aspects from the line, to make acomprehensive analysis of several typical grid pattern comparison; combined with thederivation and development of grid construction and transformation in the distributionnetwork, the distribution network of the organic link between short term and long term;(3) according to the actual situation of Nanchang distribution, selecting East Lake regionas an example, the detailed planning of distribution network.