Intelligent substation secondary system fault diagnosis method, device and device

Abstract

The invention discloses an intelligent substation secondary system fault diagnosis method. Firstly, a fault information database is generated based on the fault information of the secondary system andthe fault information characteristics corresponding to the fault information. Then according to the preset rules, the system data of the secondary system are identified to get the fault information identification results, and the characteristics of the system error data and fault information are obtained. Then, according to the fault information database, the fault type and fault location of thesystem can be obtained by analyzing the fault information identification results. In accordance with that prior art, The fault type and fault location can be obtained by analyzing and diagnosing the fault information detected by the secondary system without increasing the equipment complexity, which greatly reduces the equipment complexity and design complexity of the secondary system fault diagnosis of the substation and improves the system fault diagnosis ability of the original secondary system of the substation. The invention also discloses an intelligent substation secondary system faultdiagnosis device and a device thereof, which have the beneficial effects.

Description

technical field [0001] The invention relates to the field of substation fault detection, in particular to a diagnostic method, device and equipment for a secondary system fault of an intelligent substation. Background technique [0002] With the development of smart substations, secondary system information has become the carrier for the implementation of various functions such as protection, dispatch, operation, and maintenance of smart substations. important guarantee. [0003] However, there are still many problems in the smart substation, especially the secondary system. On the one hand, the secondary system inevitably has faults such as component damage, poor contact, and fiber optic disconnection, which directly threaten the stable and reliable operation of the smart substation; on the other hand, the smart substation The digitalization and networking of the secondary system increases the complexity of the secondary system, which brings difficulties to the fault locat...

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Problems solved by technology

On the one hand, this method is difficult to fully meet the fault diagnosis requirements of the secondary system, such as faults in the secondary system protocol, complete equipment damage, etc., which cannot be diagnosed through sensor analysis; on the other hand, the added mutual inductance components further increase the complexity of the system , while increasing the difficulty of secondary system operation and maintenance, there is also the risk of derivative failures

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