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Power supply area dividing method based on improved gray clustering

A power supply area, gray clustering technology, applied in data processing applications, instruments, calculations, etc., can solve the problems of lack of quantitative calculation and poor division effect in the division of power supply areas.

Active Publication Date: 2017-10-20
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0004] The present invention aims to solve technical problems such as the lack of quantitative calculation and analysis methods for the division of power supply areas of the existing distribution network, mostly relying on expert experience for qualitative classification, poor division effect, etc., thereby providing a method for improving asset utilization and promoting the overall quality of the power grid Power supply area division method based on improved gray clustering for quantitative calculation of power supply partition

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  • Power supply area dividing method based on improved gray clustering
  • Power supply area dividing method based on improved gray clustering
  • Power supply area dividing method based on improved gray clustering

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Embodiment Construction

[0050] A power supply area division method based on improved gray clustering, the steps are as follows: S1, select n power supply areas, and select the main factors that affect the power supply area division as indicators for each power supply area, and establish an evaluation index system, such as figure 1 shown.

[0051] The indicators include first-level indicators and second-level indicators. The first-level indicators include politics, economy, and load; the second-level indicators corresponding to politics include administrative levels; the second-level indicators corresponding to the economy include per capita GDP, per capita electricity consumption, per capita living electricity consumption, and unit GDP electricity consumption. consumption; the secondary indicators corresponding to the load include power supply reliability and load density.

[0052] S2. Collect the data of the secondary indicators of each power supply area; and perform dimensionless processing and posi...

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Abstract

The invention discloses a power supply area dividing method based on improved gray clustering, including the following steps: S1, establishing an evaluation index system; S2, collecting and preprocessing secondary index data; S3, determining the number of gray classes and the center point thereof; S4, calculating the whitening weight function of each gray class; S5, calculating the integrated weight vector v of the secondary indexes; S6, calculating the clustering coefficient of each secondary index about each gray class; and S7, getting the division result of a power supply area. By improving the most important parts, namely, the index weight calculation method and the whitening weight function design, in gray clustering, the power supply area division result is more accurate. Through reasonable division of the power supply area, optimal construction guidance schemes can be presented for distribution networks after division, in order to improve the utilization rate of assets and promote the overall quality of the power grid.

Description

technical field [0001] The invention belongs to the technical field of distribution network area division, and in particular relates to a power supply area division method based on improved gray clustering. Background technique [0002] Due to the fact that the actual situation of the distribution network in various parts of our country is quite different. If it is built according to a unified standard, it will cause technically and economically unreasonable situations such as low utilization rate of equipment assets or even serious waste. Therefore, it is very necessary to divide the power supply area of ​​the distribution network, which can not only guide the planning and construction of the distribution network and its subsequent evaluation, but also improve the economy of the distribution network operation and the reliability of power supply. [0003] At present, most of the literature studies are on substation power supply area division and optimal power supply radius....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q50/06
Inventor 关朝杰王利利李秋燕杨卓李科郭勇李鹏付科源殷奕恒杨丰阁胡钋
Owner STATE GRID CORP OF CHINA
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