A rural power grid investment benefit comprehensive evaluation method based on improved set pair analysis

Abstract

The invention discloses a rural power grid investment benefit comprehensive evaluation method based on improved set pair analysis, and the method comprises the steps: firstly, building an investment efficiency index system and an operation effect index system of a rural power grid; then, constructing an improved set pair to analyze a similar model, and solving coefficients of the model by using animproved whitening weight function; then, the objective weight of each index in the index system is solved by applying CRITIC; and finally, solving the connection degrees of all indexes of the assessment object by using the improved set pair model, and carrying out weighted synthesis to obtain the total connection degree of the assessment object as a final assessment result of the assessment object. According to the method, the problem that the rural power grid investment benefit level under the background of new energy grid connection and terminal energy substitution cannot be comprehensively and reasonably evaluated is solved, a rural power grid investment benefit hierarchical comprehensive evaluation index system is constructed, a set pair analysis model (SPA) is improved, and a whitening weight function solving method is provided for the SPA.

Description

technical field [0001] The invention belongs to the technical field of investment benefit evaluation, and in particular relates to a comprehensive evaluation method for rural power grid investment benefit based on improved set pair analysis. Background technique [0002] While the load structure of rural power grids is gradually shifting from residential loads and agricultural loads to diversified loads, terminal energy substitution and new energy grid integration are developing on a large scale, and the management and operation of rural power grids have also undergone major changes. Due to the complex structure of the rural power grid and the single investment method, in order to realize the precise investment in the rural power grid under the new situation, it is necessary to comprehensively and objectively analyze and evaluate the investment benefits of the rural power grid and find out the weak links of investment. [0003] At present, there are few studies on the analys...

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Problems solved by technology

[0007] In view of this, the purpose of the present invention is to address the deficiencies in the prior art and provide a comprehensive evaluation method for rural power grid investment benefits based on improved set pair analysis, which solves the problem of inability to comprehensively and reasonably evaluate new energy grid connection and terminal energy substitution. In order to solve the problem of rural power grid investment benefit level, a hierarchical comprehensive evaluation index system of rural power grid investment benefit was constructed, the set pair analysis model (SPA) was improved, and a whitening weight function solution method was proposed

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