Optimal selection method of extra-high voltage transformer substation location

Abstract

The invention relates to an optimal selection method of an extra-high voltage transformer substation location. The method is characterized by: firstly, establishing an index parameter which is used to plan an extra-high voltage transformer substation location layout; carrying out a system comprehension assessment on the location of the extra-high voltage transformer substation from five aspects of an economic index parameter, a security index parameter, a location area characteristic index parameter, a perspective adaptability index parameter and a coordination index parameter; according to the assessment, providing an extra-high voltage location grey integration optimization selection method based on a moment estimation theory; through the moment estimation theory, considering a subjectivity of a decision maker and objectivity than weight changes as time flies; finally, through the grey integration optimization selection method, carrying out optimization selection of a decision scheme. The method of the invention provides an important theory guidance for the extra-high voltage location program and possesses scientificity and rationality.

Description

technical field [0001] The invention belongs to the field of power system planning and design, and in particular relates to a method for optimizing the location of an ultra-high voltage substation, which is suitable for solving the problem of site selection and planning of domestic ultra-high voltage substations. Background technique [0002] China's energy resources and energy consumption are very unbalanced. Energy-rich areas are far away from economically developed areas. The geographical distribution of primary energy presents a pattern of "abundance in the north and shortage in the south, more in the west and less in the east". In order to meet the needs of future economic and social development and people's lives The electricity demand objectively requires a strong power grid to realize the optimal allocation of large-scale energy resources. The UHV power grid has the characteristics of long distance, large capacity, and low loss. Accelerating the construction of UHV t...

AI Technical Summary

Problems solved by technology

[0003] UHV substation location planning is a complex task. It is difficult to make a decision on UHV location with a single index. Various influencing factors need to be considered comprehensively, and the analysis is relatively complicated.

The current UHV drop point decision mainly relies on qualitative comprehensive consideration of various factors in the drop point area, and relies on engineering experience to determine the UHV substation drop point. The UHV drop point layout is a comprehensive problem under the interaction of multiple factors, which is a typical This decision-making method is essentially based on qualitative analysis or semi-qualitative and semi-quantitative analysis. There are too many subjective components, lack of scientificity and rationality, and there is no comprehensive and systematic theoretical method for decision-making on UHV drop points. Been proposed

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