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Staged fault diagnosis method

A technology of fault diagnosis and fault diagnosis system, applied in fault location, detection of faults by conductor type, instruments, etc., can solve the problems of pertinence and low efficiency of real-time comprehensive analysis data collection, and achieve the effect of improving real-time efficiency

Inactive Publication Date: 2020-04-14
GUANGXI POWER GRID CORP
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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art above, the present invention provides a step-by-step fault diagnosis method to solve the problems of real-time comprehensive analysis of power grid faults with multiple data sources and multiple algorithms in parallel in the power grid fault diagnosis system and the lack of pertinence and efficiency of data collection. high problem

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] The invention provides a step-by-step fault diagnosis method, which includes a step-by-step fault diagnosis system. The step-by-step fault diagnosis system includes a rapid fault diagnosis subsystem, a wave recording information fault analysis subsystem and a fault information group management module. From the perspective of real-time, applicability, and comprehensiveness, this method divides the analysis system into three types according to the differ...

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Abstract

The invention discloses a staged fault diagnosis method, relates to the field of power system fault comprehensive processing, and solves the problems of low pertinence and low efficiency of real-timecomprehensive analysis and data acquisition of power grid faults with multiple data sources and multiple parallel algorithms in a power grid fault diagnosis system. The system comprises a rapid faultdiagnosis subsystem and a recording information fault analysis subsystem. The fault information group management module realizes data sharing among the core analysis subsystems by adopting a fault information group technology and solves the coordination problem among the analysis subsystems which operate independently. Real-time comprehensive analysis of power grid faults with multiple data sources and multiple parallel algorithms is realized and the pertinence and the efficiency of analysis and data acquisition are improved.

Description

technical field [0001] The invention belongs to the field of comprehensive processing of power system faults, and in particular relates to a staged fault diagnosis method. Background technique [0002] After the power grid fault occurs, a large amount of alarm information floods into the master station of the dispatching center, protection action, switch action, power flow limit, busbar voltage loss, device blocking, system abnormality, automatic device action, etc. Among them, protection action information, fault waveform, and fixed value setting are all important data sources for fault analysis. After the power grid accident occurs, the information change sequence of the power grid equipment is: electrical quantity change, protection start, protection exit, and switch action. The real-time rankings obtained from the data are: switch and protection action information, electrical quantity waveform files (and the fixed values ​​required for waveform analysis, etc.), it is ne...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G01R31/08
CPCG06Q50/06G01R31/086
Inventor 刘斌黄超田君杨李海勇杨彦蒋连钿
Owner GUANGXI POWER GRID CORP
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