Intelligent substation fault diagnosis method considering control center fault information tampering

A technology for intelligent substation and fault diagnosis, which is applied in the fields of reasoning, calculation, and measurement of electricity. Effect

Active Publication Date: 2021-04-27
XIHUA UNIV
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  • Application Information

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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 ac

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

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[0097]An exemplary embodiment of the present invention will now be described in detail with reference to the drawings. It should be understood that the embodiments shown and described in the drawings are merely exemplary, intended to illustrate the principles and spirit of the invention, and is not limited to the scope of the invention.

[0098]The embodiment of the present invention provides a smart substation fault diagnosis method for tampering with the control center fault information, such asfigure 1 As shown, including the following steps S1 to S4:

[0099]S1, using a fuzzy C homage clustering algorithm to cluster analysis of the normalized voltage value of the smart substation telemetry, and determine the suspected faulty element based on the clustering results.

[0100]Step S1 includes steps S11 to S13:

[0101]S11, the historical voltage data in the normal operating state of the smart substation and the historical voltage data that are not attacked but the fault state are processed, an...

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Abstract

The invention discloses an intelligent substation fault diagnosis method considering control center fault information tampering. The method comprises the steps of: firstly searching suspected fault elements through employing a fuzzy C-means clustering algorithm; evaluating the uncertainty degree of remote measurement of each suspected fault element through calculating a voltage sampling value clustering coefficient of each suspected fault element, thereby determining the input data of an fault element identification model; and finally, providing a fault element identification model based on a multivariate pulse neural membrane system and a corresponding multivariate pulse matrix reasoning algorithm, and solving to obtain fault diagnosis results of the suspected fault elements. According to the method, the problem of intelligent substation fault diagnosis under the condition that the fault information of a control center is tampered can be effectively solved, and the problems of high uncertainty and inaccuracy of the fault information caused by tampering of the fault information which cannot be handled by an existing method can also be solved.

Description

technical field [0001] The invention belongs to the technical field of intelligent substation safety, and in particular relates to the design of a fault diagnosis method for an intelligent substation considering the tampering of fault information in a control center. Background technique [0002] Smart substation is responsible for the important task of power transmission and conversion, and is an important hub of smart grid 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 the rapid energy supply after a fault occurs. Substation fault diagnosis refers to the fault alarm information obtained through the control center (including the primary system and secondary system alarm information of the substation) when a fault occurs, using diagnostic methods to determine faulty components, and evaluating the abnormal actions of related protection or circuit breakers . At ...

Claims

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Application Information

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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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