Power grid investment benefit evaluation method based on improved matter element extension model

Abstract

The invention discloses a power grid investment benefit evaluation method based on an improved matter element extension model, and belongs to the technical field of power planning. According to the method, power grid investment benefit evaluation indexes are selected to construct an evaluation index library; the evaluation indexes are divided into three types to be subjected to index normalizationprocessing respectively; the method also has steps of carrying out weight assignment on indexes in the evaluation index library by adopting a combined weight method; establishing a classic domain ofa power grid investment evaluation index and a to-be-evaluated matter element by adopting a matter element extension model; constructing a corresponding matter element matrix, calculating the closeness between each index of the matter element to be evaluated and the evaluation index level, and finally determining the evaluation level to which the power grid investment project belongs. The power grid investment project evaluation method can accurately and effectively evaluate the benefit of the power grid investment project and overcome the defects that a traditional evaluation model is insufficient in directionality and low in information utilization rate, and the power grid investment project evaluation method can be used for evaluating the benefit of the power grid investment project accurately and effectively.

Description

technical field [0001] The invention discloses a network investment benefit evaluation method based on an improved matter-element extension model, and belongs to the technical field of electric power planning. Background technique [0002] Grid investment is an important part of grid annual planning and construction plan. In order to maximize investment benefits, it is necessary to accurately evaluate the benefits of grid investment. With the deepening and development of power system reform, it not only affects the investment scope, investment ability, investment demand and investment strategy of the power grid company, but also puts forward new requirements for the evaluation of the company's investment benefits. [0003] The current power grid benefit evaluation adopts the traditional matter-element extension model, and the evaluation level is determined according to the correlation degree, but this method has two shortcomings: 1) When an index value of the matter-element ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the shortcomings of the above-mentioned background technology and provide a method for evaluating the investment benefits of power grids based on the improved matter-element extension model, which normalizes the classical domain and the matter-element The degree of correlation is improved to replace the degree of correlation to evaluate the benefits of power grid investment projects, which solves the shortcomings of traditional evaluation models, such as insufficient orientation and low information utilization.

Images