Intelligent substation fault diagnosis method considering control center fault information tampering

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 ...

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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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