Method for determining weight of evaluation index of rural power grid renovation and upgrading project

A technology for evaluating indicators and determining methods, which is applied in data processing applications, instruments, calculations, etc. It can solve problems such as the difficulty in unifying the criteria for determining the weight of indicators, and the difficulty in ensuring the scientificity and accuracy of calculation results.

Active Publication Date: 2014-11-19
STATE GRID CORP OF CHINA +1
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Problems solved by technology

In addition, the weight calculation methods of various indicators rely too much on human factors such as expert scoring to determine the weight of the indicators. It is

Method used

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  • Method for determining weight of evaluation index of rural power grid renovation and upgrading project
  • Method for determining weight of evaluation index of rural power grid renovation and upgrading project
  • Method for determining weight of evaluation index of rural power grid renovation and upgrading project

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Experimental program
Comparison scheme
Effect test

Embodiment

[0097] Taking the "power grid structure" index in the evaluation index of rural power grid transformation and upgrading project as an example, the process of calculating the weight of the index is explained by using the analytic hierarchy process.

[0098] (1) Subjective weight calculation

[0099] 1) Construct a judgment matrix based on a single expert score:

[0100] The "power grid structure (B)" indicators include "35kV and above substation dual power ratio (B1)", "35kV and above substation N-1 pass rate (B2)", "10 (20) kV line N-1 pass rate ( B3)", "Contact ratio of 10 (20) kV main line in the county (B4)", "Qualification rate of power supply radius of 10 (20) kV main line (B5)" 5 three-level sub-indicators".

[0101] In the form of expert scoring, according to the 1-9 scale method, the above five indicators are compared and scored in pairs, and the judgment matrix is ​​formed as follows:

[0102] Table 3 Judgment matrix of power grid structure three-level indicators

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Abstract

The invention relates to a method for determining the weight of an evaluation index of a rural power grid renovation and upgrading project. According to the method, first, the subjective weight is determined with an analytic hierarchy method; secondly, statistic analysis is performed on historical data of a rural power grid, and the objective weight is determined with a mean-variance method; finally, the subjective weight and the objective weight are integrated through multiplication, and the final index weight is determined. Not only are influences caused by subjective deviation avoided, but also the objective actual conditions can be fully reflected, and scientificity and accuracy of index weight assignment can be effectively improved.

Description

technical field [0001] The invention relates to a method for determining index weights, in particular to a method for determining index weights for rural power network transformation and upgrading projects. Background technique [0002] The evaluation index system of the rural power grid transformation and upgrading project involves multiple levels such as power grid performance, enterprise benefits, and social impact, and each level is divided into several small indicators. There is incompatibility, so various indicators need to be standardized and dimensionless. In addition, the weight calculation methods of various indicators rely too much on human factors such as expert scoring to determine the weight of the indicators. It is difficult to unify the criteria for determining the weight of the indicators, and it is difficult to guarantee the scientificity and accuracy of the calculation results. Therefore, it is necessary to propose a standardized processing method and ind...

Claims

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Application Information

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IPC IPC(8): G06Q50/02
Inventor 盛万兴梁英杨红磊王金丽王金宇李宁
Owner STATE GRID CORP OF CHINA
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