Intelligent substation fault diagnosis method considering fault information tampering in control center

A technology for intelligent substations and fault information, applied in inference methods, calculations, measurement of electricity, etc., can solve problems such as uncertainty and inaccuracy of fault information, and achieve a solution to the problem of high uncertainty and inaccuracy of fault information. Effect

Active Publication Date: 2022-06-17
XIHUA UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems in the smart substation diagnosis method, and propose a smart substation fault diagnosis method that takes into account the tampering of fault information in the control center to deal with the high degree of uncertainty in the fault information caused by hacker information attacks and the problem of imprecision

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  • Intelligent substation fault diagnosis method considering fault information tampering in control center

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Embodiment Construction

[0097] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments shown and described in the accompanying drawings are exemplary only, and are intended to illustrate the principles and spirit of the present invention, and not to limit the scope of the present invention.

[0098] The embodiment of the present invention provides a fault diagnosis method for an intelligent substation that takes into account the tampering of fault information of a control center, such as figure 1 As shown, the following steps S1-S4 are included:

[0099] S1. Use the fuzzy C-means clustering algorithm to perform cluster analysis on the normalized voltage values ​​of the remote measurement of the smart substation, and determine the suspected faulty components according to the clustering results.

[0100] Step S1 includes the following sub-steps S11 to S13:

[0101] S11. Process the histori...

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Abstract

The invention discloses a fault diagnosis method for an intelligent substation considering the tampering of fault information in a control center. Firstly, a fuzzy C-means clustering algorithm is used to find suspected faulty components, and then remote control is performed by calculating the grouping coefficient of the voltage sampling value of each suspected faulty component. The degree of measurement uncertainty is evaluated, and then the input data of the faulty component identification model is determined. Finally, a faulty component identification model based on the multivariate pulse neural membrane system and its corresponding multivariate pulse matrix reasoning algorithm are proposed, and the suspected faulty component is obtained by solving Fault diagnosis results. The invention can not only effectively solve the fault diagnosis problem of the intelligent substation under the condition that the fault information of the control center is tampered with, but also solve the problem of high uncertainty and inaccuracy of the fault information caused by the tampering of the fault information which cannot be handled by the existing methods .

Description

technical field [0001] The invention belongs to the technical field of intelligent substation security, and in particular relates to the design of a fault diagnosis method for an intelligent substation which takes into account the tampering of fault information of a control center. Background technique [0002] Smart substations are responsible for power transmission and transformation, and are an important hub for smart grids and energy internet. With the vigorous development of smart grid and energy Internet, the fault diagnosis function of smart substation plays an important role in rapid energy supply after a fault occurs. Substation fault diagnosis refers to the fault alarm information (including the substation primary system and secondary system alarm information) obtained by the control center when a fault occurs, and the diagnosis method is used to determine the faulty components and evaluate the abnormal operation of the relevant protection or circuit breaker. . A...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G06K9/62G06N3/04G06N5/04
CPCG01R31/00G06N3/04G06N5/04G06F18/23
Inventor 王涛程亮刘伟黄著陈孝天周科全刘力源古世甫詹红霞张彼德
Owner XIHUA UNIV
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