Power distribution network repair ability assessment method based on improved grey clustering

A gray clustering and distribution network technology, which is applied in the direction of instruments, data processing applications, calculations, etc., can solve problems such as difficult calculations, inapplicable distribution network characteristics, inconsistent distribution network characteristics, etc., and achieve the effect of small amount of calculation

Inactive Publication Date: 2017-05-10
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

[0003] The emergency repair work of the distribution network is mainly completed by the power company in the region. Due to many factors affecting the emergency repair capability, there is currently no one that can evaluate the distribution network emergency repair capability based on the power company's distribution network emergency repair history data and objective factors. method
[0004] The existing evaluation methods are mainly for the evaluation and research of the emergency repair capabilities of other industries or other directions of the electric power industry. The evaluation metho

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  • Power distribution network repair ability assessment method based on improved grey clustering
  • Power distribution network repair ability assessment method based on improved grey clustering
  • Power distribution network repair ability assessment method based on improved grey clustering

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[0044] Such as figure 1 As shown, a distribution network emergency repair capability evaluation method based on improved gray clustering includes the following steps:

[0045] S1, using the AHP to establish an evaluation index system, including the target layer and the index layer, the target layer is the emergency repair capability of the distribution network, and the index layer includes indicators related to organization and command, resource preparation, external conditions, and internal environment. Through the target layer and The index layer evaluates the existing emergency repair capabilities, finds problems through the evaluation results, and establishes corresponding plans according to the problems.

[0046] S2, the original index value of the power company is obtained by expert experience combined with the Delphi method, and the original index matrix S with n rows and m columns is obtained, and then the original index value is dedimensionalized to obtain a standardi...

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Abstract

The invention relates to a power distribution network repair ability assessment method based on improved grey clustering. The method comprises the steps that S1, the analytic hierarchy process is adopted to establish an assessment indicator system; S2, original indicator values of all electric power companies are collected to obtain an original indicator matrix, and the original indicator values are subjected to dimension removal to obtain a standard indicator matrix; S3, the original indicator matrix is normalized, and weights are established for indicators according to the information entropy theory to obtain an entropy weight matrix; S4, a grey clustering method is adopted to set the number of grey clusters and a whitening weight function, and a saturability matrix corresponding to each grey cluster is calculated; S5, fuzzification operation is performed according to the saturability matrix obtained in the step S4 and the entropy weight matrix to obtain a clustering assessed value matrix, and the grey clusters which all the electric power companies belong to are determined according to the maximum value of elements in each row of the clustering assessed value matrix. Compared with the prior art, power distribution network repair ability characteristics can be reflected completely, and a whole set of complete reference basis is formulated for scientific assessment of the power distribution network repair ability level.

Description

technical field [0001] The invention relates to a method for evaluating the emergency repair capability of a distribution network, in particular to a method for evaluating the emergency repair capability of a distribution network based on improved gray clustering. Background technique [0002] The distribution network repair capacity refers to the measurement of the distribution network's ability to restore its power supply to the maximum extent after a power user fails. And the optimization of the construction plan of supporting facilities. [0003] The emergency repair work of the distribution network is mainly completed by the power company in the region. Due to many factors affecting the emergency repair capability, there is currently no one that can evaluate the distribution network emergency repair capability based on the power company's distribution network emergency repair history data and objective factors. method. [0004] The existing evaluation methods are main...

Claims

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Application Information

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IPC IPC(8): G06Q10/00G06Q50/06
CPCG06Q10/20G06Q50/06
Inventor 赵永熹王华昕徐晨邹龙
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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