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A Cluster Analysis Based Power Supply Area Division Method for Distribution Network

A technology of power supply area and cluster analysis, applied in instruments, data processing applications, calculations, etc., to achieve high engineering application value, improve practical operability, and divide the economy.

Active Publication Date: 2017-11-07
STATE GRID CORP OF CHINA +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with other systematic clustering methods, the center of gravity method is more robust to outliers, but is generally not as good as the class average method or the sum of squared deviation method in other respects

Method used

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  • A Cluster Analysis Based Power Supply Area Division Method for Distribution Network
  • A Cluster Analysis Based Power Supply Area Division Method for Distribution Network
  • A Cluster Analysis Based Power Supply Area Division Method for Distribution Network

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Experimental program
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Embodiment

[0089] The present invention will be further described in detail below in conjunction with specific embodiments.

[0090] (1) Index system for power supply area division:

[0091] This method fully considers the factors that affect the division of power supply areas, and mainly determines the index system of power supply area division from three aspects: politics, economy, and load, so as to make the division of power supply areas more economical, reasonable, and evidence-based. See Table 1 for details:

[0092] Table 1 Index system for power supply area division

[0093]

[0094] (2) Cluster analysis of 342 prefecture and city indicators in my country:

[0095] According to the indicators listed in Table 1, the annual per capita GDP, annual per capita social electricity consumption, annual per capita domestic electricity consumption and load density of 342 cities in my country were counted separately. in:

[0096] There are 339 samples of annual per capita GDP indicato...

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Abstract

The invention relates to a method for dividing power supply areas of distribution networks based on cluster analysis. This method first selects the scope of the power supply area to be divided, analyzes its current situation and the main factors affecting the division of the power supply area, and establishes an evaluation index system for the division of the power supply area; then analyzes the distribution of the current status indicators and planning indicators of the power supply area , and choose an appropriate method to process the data, so that the processed data basically obeys the normal distribution; then, using SAS software, choose an appropriate method to carry out cluster analysis on the sample data of each indicator or several indicators together Cluster analysis, so that the cluster results basically obey the normal distribution; finally, according to the cluster analysis results, establish the division standard of the power supply area. This method has high adaptability and can be applied to the division of power supply areas of different scales in different regions, and can lay a foundation for the formulation of differentiated technical guidelines for distribution network planning and design and related technical standards.

Description

technical field [0001] The invention relates to a method for power distribution system planning, in particular to a method for dividing power supply areas of a power distribution network based on cluster analysis. Background technique [0002] China has a vast territory and a large power supply area, and the economic and social development and power grid characteristics of different regions are obviously different. If the distribution network is built according to a unified standard, the utilization rate of equipment assets will be low or even serious waste, which is unreasonable in terms of technology and economy. Therefore, in order to reflect regional differences and differences in distribution network planning and construction, realize lean management of distribution networks, improve the efficiency and level of distribution network planning, and promote the development of my country's distribution network planning to standardization and science , should always run throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06
Inventor 周莉梅苏傲雪崔艳妍刘伟苏剑
Owner STATE GRID CORP OF CHINA
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