Distribution network evaluation method based on power supply partitioning features

Abstract

The invention relates to a distribution network evaluation method based on power supply partitioning features. The method comprises the following steps: determining a distribution network evaluation index system which is composed of five primary indexes and 17 secondary indexes; building membership functions of the indexes by use of a fuzzy membership degree method and based on the principle of linear interpolation; determining the weights of the evaluation indexes by use of a judgment matrix method of a quantitative calculation method; establishing a direct influence matrix, calculating a comprehensive influence matrix between the indexes, and using the comprehensive influence matrix to optimize the weights of the evaluation indexes; and substituting the calculation result of the previous step to a calculation formula of the analytic hierarchy process to get the final result of distribution network evaluation. Through the method, the comprehensive score level of evaluation samples can be given more accurately, the evaluation result is more accurate, and the distribution network plan and design decision work can be better guided.

Description

technical field [0001] The invention relates to a distribution network evaluation method, in particular to a distribution network evaluation method based on power supply partition characteristics. Background technique [0002] The distribution network is an important part of the power grid. Due to the large amount of historical debts, the development of the distribution network is still relatively lagging behind. With the acceleration of my country's urban-rural integration process, especially the continuous deepening of the construction of new socialist countryside, some The demand for electricity in the region is growing strongly. In order to meet the continuously growing demand for electricity in economic and social development, my country's distribution network urgently needs to further accelerate its development. Carrying out the research work on the distribution network evaluation system, through guiding the establishment of a reasonable evaluation index system, and gra...

AI Technical Summary

Problems solved by technology

In the evaluation calculation, the weight coefficient of the evaluation index is obtained through research, but the influence of the mutual influence between the evaluation indexes on the weight of the index is not considered, which affects the accuracy of the evaluation of the distribution network

At the same time, the traditional evaluation method does not take into account the different development requirements of the distribution network sub-regional power grid, and the index score is not reasonable enough

Images