Power distribution network differential investment decision-making method based on dynamic weight

Abstract

The invention discloses a dynamic weight-based power distribution network differential investment decision-making method, which comprises the following steps of: firstly, analyzing factors influencing power distribution network investment decision-making, and constructing an investment effect evaluation system; secondly, determining initial weights of evaluation indexes of all levels in the investment effect evaluation system; then, calculating a historical investment effect score of each district and county according to historical actual values of evaluation indexes of each district and county in the prefecture-level city, and calculating a predicted investment effect score of each district and county in the next year by adopting a linear regression method based on the historical investment effect scores; and finally, calculating a difference value between the predicted investment effect growth rate of each district and county and the historical investment effect growth rate, determining an optimal weight set of each district and county in the investment effect evaluation system, calculating a predicted investment effect score of each district and county based on the optimal weight, and obtaining the investment amount of each district and county. According to the method, differentiated investment decisions of the power distribution network are realized, the integrity, coordination and network performance of power distribution network investment are ensured, and a scientific basis is provided for formulating a power distribution network investment strategy.

Description

technical field [0001] The invention relates to the technical field of electric power grids, in particular to a differential investment decision-making method for distribution networks based on dynamic weights. Background technique [0002] As an important national infrastructure, distribution network plays a pivotal role in my country's economic and social development. With the continuous development of the overall configuration of the national power system, power grid companies pay more and more attention to the construction and development of the distribution network, and the investment in the distribution network is increasing year by year. Reasonable investment decision of distribution network can not only improve the utilization rate of system resources, but also play a role in accelerating the construction of distribution network and eliminating the imbalance of power grid development in various regions. At present, the investment decision-making of power grid compan...

AI Technical Summary

Problems solved by technology

This method can be completed only by collecting historical data, but it does not consider the future development of each region, so it is difficult to effectively improve the investment efficiency of distribution network; the third is to set relevant indicators according to the current situation, and assign fixed weights to calculate the distribution ratio

This method cannot reflect the relationship between the economic development level, power grid development level, power consumption level and investment scale of each region, and ignores the importance of different indicators in different regions, which may cause uneven distribution network construction.

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