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A typical scenario selection method for power grid planning based on multi-objective linear programming

A technique of linear programming and power grid planning, applied in electrical components, circuit devices, AC network circuits, etc., to achieve the effect of small errors

Active Publication Date: 2022-08-05
TIANJIN UNIV +1
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  • Application Information

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Problems solved by technology

[0007] In view of the above-mentioned problems, the purpose of the present invention is to overcome the deficiency of a single typical day selection method, build an optimal typical day selection model and selection algorithm on the basis of constructing a typical day evaluation index system, and the technical scheme is as follows:

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  • A typical scenario selection method for power grid planning based on multi-objective linear programming
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  • A typical scenario selection method for power grid planning based on multi-objective linear programming

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Embodiment approach

[0066] 1) Comprehensive evaluation index system

[0067] A large amount of information in historical data includes total resource and load information, distribution information, timing change information, and extreme scene information. Therefore, in order to comprehensively evaluate the selection effect of typical days from various aspects, the present invention constructs a comprehensive evaluation index model for typical day selection including statistical indicators and time series indicators. The model structure diagram is as follows: figure 1 shown.

[0068] The establishment of statistical indicators mainly considers that because the total amount and distribution of loads and resources involve the calculation of investment benefits of distributed power and distribution networks, the statistical indicators of historical data and typical daily data should be kept within a certain error range.

[0069] The annual total load power deviation ΔC represents the typical day’s t...

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Abstract

The present invention involves a typical selection method based on a multi -target linear planning. On the basis of building a typical daily evaluation index system, build the most optimized typical day selection model and the typical scene of the power grid planning, including: typical daily dayEvaluation index system; build a typical daily selection model based on hybrid and linear planning, multi -target linear planning: two -stage vague solution: the two -stage fuzzy planning solution method is used to solve the typical daily selection model.

Description

technical field [0001] The invention relates to a method for selecting typical scenarios of power grid planning based on multi-objective linear programming. Background technique [0002] The penetration rate of distributed power sources in the power grid continues to increase, and the degree of influence on the power grid continues to increase. Therefore, the operation regulation and planning and design of distribution networks considering various distributed power sources have become a current research focus. However, due to the load point in the power grid Renewable energy sources such as wind and solar have a large amount of data, and the calculation scale required for planning design analysis and scheduling strategy formulation is large. selection question [0003] The existing selection of typical daily scenes mainly adopts the clustering method, so more research focuses on the improvement of clustering algorithms, and combines big data, parallel computing and other te...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 郭力赵宗政张宇轩杨书强王成山徐斌丁津津骆晨
Owner TIANJIN UNIV