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GRA (Grey Relational Analysis) and SVM (Support Vector Machine) based prediction method of power transmission and transformation project cost

A technology of support vector machine and engineering cost

Inactive Publication Date: 2018-03-23
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for predicting the cost of power transmission and transformation projects based on gray relational analysis and support vector machines in view of the current inaccurate cost estimation of power transmission and transformation projects, so that power grid enterprises can Accurate and reasonable estimation of project cost is convenient for power grid enterprises to effectively manage and control the cost of power transmission and transformation projects

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  • GRA (Grey Relational Analysis) and SVM (Support Vector Machine) based prediction method of power transmission and transformation project cost
  • GRA (Grey Relational Analysis) and SVM (Support Vector Machine) based prediction method of power transmission and transformation project cost
  • GRA (Grey Relational Analysis) and SVM (Support Vector Machine) based prediction method of power transmission and transformation project cost

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] Aiming at the cost of power transmission and transformation projects of power grid enterprises, the present invention provides a method for predicting the cost of power transmission and transformation projects based on gray relational analysis and support vector machines, so that power grid enterprises can accurately and reasonably estimate the cost of power transmission and transformation projects, which is convenient for power grids Enterprises can effectively manage and control the cost of power transmission and transformation projects.

[0038] The present invention first uses the gray correlation degree to analyze and calculate the influence degree of each factor on the cost of the power transmission and transformation project, and then screens out the influencing factors with a high degree of synchronization with the cost of the pow...

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Abstract

The invention discloses a GRA and SVM based prediction method of power transmission and transformation project cost. At present, the relation between the power transmission and transformation projectcost and influential factors is hard to describe linearly. According to the prediction method, GRA is used to calculate the degrees in which the different factors influence the power transmission andtransformation project cost, the influential factor which changes with the power transmission and transformation project cost highly synchronously is screened according to the grey relational degree,a screened main influential factor serves as input of the SVM, a predicted value of the power transmission and transformation project cost serves as output of the SVM, the property that the SVM approaches the nonlinear continuous function relation infinitely is used, and the SVM serves as a prediction model of the power transmission and transformation project cost. The prediction method can be used to estimate the power transmission and transformation project cost accurately and reasonably, so that a power grid enterprise can improve the project cost control level and capability.

Description

technical field [0001] The invention belongs to the field of electric power project cost forecasting, in particular to a method for predicting the cost of power transmission and transformation projects based on gray relational analysis and support vector machines. Background technique [0002] The cost of power transmission and transformation projects is an important part of the investment of power grid enterprises. In order to formulate the best investment strategy, it is necessary to accurately and reasonably estimate the cost of power transmission and transformation projects. However, the cost of power transmission and transformation projects is affected by various factors such as society, economy, policy, and resources, and the mechanism of each factor is complex, which makes it difficult to express the relationship between the cost of power transmission and transformation projects and the influencing factors in a linear manner. Contents of the invention [0003] The t...

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06G06K9/62
CPCG06Q10/04G06Q50/06G06F18/2411
Inventor 翟树军袁海洲胡本哲李士亮李如萍徐玉杰杨丽萍张轶姿李鑫彭婧
Owner STATE GRID CORP OF CHINA
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