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Power distribution network evaluation method based on improved principal component-analytic hierarchy process

A technology of principal component analysis and analytic hierarchy process, which is applied in the field of distribution network, can solve the problems of multi-arrangement of lines, less evaluation of characteristics of medium and low voltage distribution network, and low level of automation, so as to reduce redundancy, The effect of improving efficiency and analysis accuracy

Inactive Publication Date: 2019-08-09
QINZHOU POWER SUPPLY BUREAU OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

[0002] my country's distribution network has a wide range of distribution, many lines and chaotic arrangements, a large number of equipment types and quantities, and a low level of automation, which lead to difficulties in collecting distribution network operation data, and most of the current research on distribution network evaluation remains At the level of high-voltage and medium-voltage distribution networks, there are few evaluations of the characteristics of medium- and low-voltage distribution networks

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  • Power distribution network evaluation method based on improved principal component-analytic hierarchy process
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. However, those skilled in the art know that the present invention is not limited to the drawings and the following embodiments.

[0036] The embodiment of the present invention proposes a distribution network evaluation based on improved principal component-level analysis.

[0037] The stable operation of the distribution network is one of the most basic requirements of the power system. A power outage caused by a state failure of the distribution network will cause a large amount of economic losses, and even lead to casualties in severe cases. Therefore, it is necessary to control the process control indicators of the distribution network. The parameters are decomposed and controlled, and the process control index paramete...

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Abstract

The invention relates to power distribution network evaluation based on improved principal component-analytic hierarchy process, and relates to a power distribution network state evaluation method, which realizes accurate evaluation of the comprehensive state of a power distribution network. The method comprises: screening indexes by adopting an improved principal component analysis method, and then establishing a power distribution network state evaluation index system by adopting an improved analytic hierarchy process; secondly, carrying out unification and dimensionless processing on the indexes; and then calculating a weight by using a Delphi method to obtain a health condition assessment function of the power distribution network area, and assessing the health condition of the power distribution network area according to the assessment function value. The problem of serious index subjectivity caused by a traditional method is solved, reasonable and objective multi-level model building of all indexes in the power distribution network is guaranteed, correlation of all the indexes in power distribution network state evaluation can be analyzed, redundancy of the indexes is reduced, and efficiency and analysis precision during power distribution network evaluation are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of distribution networks, and in particular relates to a distribution network state evaluation method based on an improved principal component analysis method and an analytic hierarchy process. Background technique [0002] my country's distribution network has a wide range of distribution, many lines and chaotic arrangements, a large number of equipment types and quantities, and a low level of automation, which lead to difficulties in collecting distribution network operation data, and most of the current research on distribution network evaluation remains At the level of high-voltage and medium-voltage distribution networks, there are few evaluations of the characteristics of medium- and low-voltage distribution networks. However, with the continuous improvement of users' requirements for power supply reliability and the continuous development of smart grids, the health status of the distribution network an...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 邹宇池小兵纪尚昆宋殷冠李绍樑
Owner QINZHOU POWER SUPPLY BUREAU OF GUANGXI POWER GRID CO LTD
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