Information identification method for power grid equipment defect text

Abstract

The invention provides an information identification method for a defect text of power grid equipment. The method comprises the following steps: firstly, constructing a dependency syntax tree based ona main transformer defect text and a national power grid main transformer defect classification standard text by utilizing a dependency syntax analysis technology, and pruning, segmenting and reconstructing the dependency syntax tree by combining actual characteristics of the defect text; and then, aimed at the constructed dependency syntax tree, providing a tree matching algorithm based on a dependency relationship, finding out a standard expression corresponding to the actual defect, and identifying the actual defect information contained in the defect text; and finally, using a main transformer defect text to construct an example, and analyzing the accuracy of the defect information identification method. According to the method, the defect text is analyzed from the perspective of semantics, accurate defect information contained in the text is identified, and guidance is provided for fault rate modeling, health state evaluation and other problems of equipment.

Description

technical field [0001] The invention belongs to the field of power systems, in particular to an information identification method for grid equipment defect text. Background technique [0002] During the installation, commissioning, operation and maintenance stages of power transmission and transformation equipment, a large amount of unstructured text data has been accumulated. Among them, the equipment defect text contains information closely related to the health status and operation reliability of the equipment. If the computer can automatically identify the precise defect of the equipment from the defect text, it can greatly reduce the workload of manual analysis of the defect text, and provide effective equipment defect management and health status evaluation under the condition that the equipment status monitoring device is not perfect. Data support can also provide more effective guidance for equipment failure rate analysis, remaining life prediction, and condition-ba...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose an information identification method for power grid equipment defect

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