An investment comparison and selection method of distribution network scheme based on optimal solution

Abstract

The invention relates to an investment comparison and selection method of distribution network schemes based on an optimal solution, comprising the following steps: A, constructing a quantifiable lifecycle cost-benefit index of a distribution network project. B, determining the weight of each index and the optimal solution of the TOPSIS method. C, calculating the closeness degree between each scheme and the optimal solution by using the grey correlation degree and the Euclidean distance so as to select the optimal distribution network investment scheme. For the comparison and selection requirement of the distribution network project planning, applicable life-cycle cost-effectiveness and socio-environmental indicators are established, which can reflect the pros and cons of the distributionnetwork planning project comprehensively, and puts forward the comprehensive evaluation model of grey relational degree based on TOPSIS, the method can standardize the technical and economic optimization comparison and selection of distribution network planning, realize the quantitative analysis and comparison of distribution network planning schemes, improve the technical and economic analysis level of distribution network planning, and improve the scientificity and rationality of distribution network planning.

Description

technical field [0001] The present invention relates to the technical analysis field of electric power system, and more specifically relates to an investment comparison and selection method for distribution network schemes based on an optimal solution. Background technique [0002] At this stage, the construction of national grid transmission lines follows the energy strategic layout, the energy adjustment between the east and the west of the country, and the strategic trend of global energy interconnection along the Belt and Road. The investment in UHV power grid construction and distribution network construction is increasing year by year. The pace of distribution network investment and construction is accelerating, and an effective and comprehensive distribution network planning project comparison and selection scheme will be the decision-making basis for power grid planning and construction. However, in the decision-making method of power grid investment and construction...

AI Technical Summary

Problems solved by technology

However, in the decision-making method of power grid investment and construction, it mainly focuses on the research on the economic operation and management of the power grid, the research on the safety of the power grid operation, and the multi-objective power grid planning problems, and lacks the comparison and selection of technical and economic evaluation of multiple distribution network planning projects.

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