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Cost analysis method for power transmission line project

A transmission line and engineering cost technology, applied in the field of electric power engineering construction, can solve problems such as large differences in technical characteristics, single engineering parameters, deviation from actual results of cost analysis, etc., and achieve the effect of simplifying model feature input and accurate analysis

Inactive Publication Date: 2018-05-15
CHINA ENERGY CONSTR GRP SHAANXI ELECTRIC POWER DESIGN INST CO LTD
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Problems solved by technology

[0005] The purpose of this application is to solve the problem that the above-mentioned existing analysis methods can quickly screen out typical schemes when the engineering parameters are relatively single, but when the analysis engineering parameters are quite different from the typical schemes, the typical schemes selected subjectively are different from the project to be analyzed. The technical characteristics of different technologies may be quite different, so the cost analysis based on this will deviate from the actual results

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  • Cost analysis method for power transmission line project
  • Cost analysis method for power transmission line project
  • Cost analysis method for power transmission line project

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Embodiment

[0024] see figure 1 , the embodiment of the present invention provides a method for cost analysis of a power transmission line project, comprising the following steps:

[0025] 1): According to the characteristics of the transmission line project, establish a basic database;

[0026] 2): Preprocessing the basic indicator data;

[0027] 3): Construct an engineering feature dimension reduction algorithm based on principal component analysis, reduce the dimension and complexity of indicators, and simplify the input of model features;

[0028] 4): Establish a gray relational degree model, and calculate the gray relational degree between the project to be analyzed and the data sample project under the new index system;

[0029] 5): Calculate the engineering investment of the representative scheme;

[0030] 6): Compare and analyze the cost of the project to be analyzed and the representative project investment.

[0031] Optionally, the basic database in step 1) includes meteorol...

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Abstract

The invention relates to the technical field of electric power project construction and in particular to a cost analysis method for a power transmission line project. In an existing analysis method, atypical scheme can be rapidly screened when engineering parameters are relatively single, however, when the engineering parameters and the typical scheme are analyzed to have a great difference, thetypical scheme screened subjectively and technical characteristics of a to-be-analyzed project may have great difference, thus, the cost analysis based on the technical scheme deviates from a practical result. The invention provides the cost analysis method for the power transmission line project. The method comprises the following steps of establishing a basic database; preprocessing basic indexdata; constructing a project characteristic dimensionality reduction algorithm based on a principal component analysis; establishing a grey relational model; calculating a project investment of a representative scheme; and performing a cost comparison analysis on the to-be-analyzed project and the representative project investment.

Description

technical field [0001] The application relates to the technical field of electric power engineering construction, in particular to a method for cost analysis of transmission line engineering. Background technique [0002] In recent years, my country's new energy power generation has developed rapidly, and the number and scale of supporting transmission projects have continued to increase. Coupled with the need for the improvement and optimization of the grid structure of the power grid itself, the investment scale of transmission lines has continued to increase, especially the concentration of UHV line projects. Construction has put forward stricter requirements on the cost of transmission line projects, and project cost control has gradually become the core element of transmission line project construction. Since there are factors affecting the project cost in the early stage decision-making, design, bidding, construction, and completion acceptance of the transmission line p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06Q50/08
CPCG06Q10/0631G06Q50/06G06Q50/08
Inventor 汪鹏武萍王雪艳王伟赵雅媛李佳佳
Owner CHINA ENERGY CONSTR GRP SHAANXI ELECTRIC POWER DESIGN INST CO LTD
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