Power network area division method based on evaluation index system of power distribution network and clustering analysis

A technology for evaluating index system and area division method, applied in data processing applications, instruments, calculations, etc., can solve the problems of single weight algorithm, not considering the scientific rationality of the distribution network index system, and insufficient weight processing scheme.

Inactive Publication Date: 2016-12-07
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0004] Most of the traditional distribution network evaluation systems determine the index categories based on expert experience, and the weight algorithms in most index evaluations are also relatively simple, and only a few literatures use the combination of the two algorithms to calculate the weight
The establishment methods and weight processing schemes of these systems are not refined enough, and do not take into account the scientific rationality of the entire distribution network index system

Method used

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  • Power network area division method based on evaluation index system of power distribution network and clustering analysis
  • Power network area division method based on evaluation index system of power distribution network and clustering analysis
  • Power network area division method based on evaluation index system of power distribution network and clustering analysis

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Embodiment Construction

[0065] like Figure 10 shown,

[0066] A power grid area division method based on the distribution network evaluation index system and cluster analysis, the steps are as follows:

[0067] Step S1, select several grass-roots indicators that can reflect the current situation of a city's distribution network, and use the system clustering method to establish a distribution network evaluation index system.

[0068] The specific steps for establishing the evaluation index system are as follows: Step S1.1, collect various grass-roots indicators and data of a city's distribution network over the years, and combine expert experience to select g grass-roots indicators as clustering samples.

[0069] Step S1.2, in order to ensure the rationality of the clustering results, select the data of the grassroots indicators in p regions of a city to form a matrix B with g rows and p columns.

[0070] In step S1.3, the matrix B is clustered according to the variable g, that is, clustered accor...

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Abstract

The invention discloses a power network area division method based on an evaluation index system of a power distribution network and clustering analysis. The power network area division method comprises the following steps of: S1, selecting multiple primary indexes capable of reflecting the current situation of a power distribution network in a certain urban, and establishing the evaluation index system of the power distribution network by utilizing a systematic clustering method; S2, determining the comprehensive weight of each evaluation index in each class in the evaluation index system by adopting a subjective and objective analysis method, in which an improved hierarchical analysis method and an entropy weight method are combined, and, in combination with a scoring value of each evaluation index, obtaining the comprehensive score of the power distribution network in an evaluated area; and S3, performing clustering analysis of the comprehensive score of the power distribution network in the evaluated area so as to obtain a classification result of the power distribution network in the whole area. According to the power network area division method disclosed by the invention, on the basis of the general characteristics of the power distribution network, the development current situation and the development capability of the power distribution network are scientifically evaluated; and practical and reliable basis is provided for determining a key factor influencing development of the power distribution network.

Description

technical field [0001] The invention belongs to the technical field of distribution network area division, and in particular relates to a distribution network area division method based on distribution network evaluation index system and cluster analysis. Background technique [0002] The scientific and reasonable division of power grid areas has always been a research hotspot in the development of power grids. By dividing multiple local distribution networks in a large area, the development direction and route of different types of distribution networks can be studied, so that Differentiation meets the overall development needs of the power grid in the region. [0003] The division of power grid areas is affected by many factors such as the average power supply radius of the main line, the proportion of cross-sectional radius that meets the requirements of the regulations, the reliability rate of power supply, and the pass rate of comprehensive voltage. These factors will a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 孙义豪王璟关朝杰郭勇全少理郭璞陶丹刘沛胡钋
Owner STATE GRID CORP OF CHINA
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