Transformer fault diagnosis method and transformer fault diagnosis device

Abstract

The invention discloses a transformer fault diagnosis method and a transformer fault diagnosis device. The transformer fault diagnosis method comprises a first gray scale image corresponding to an infrared image of a to-be-diagnosed transformer is acquired, and according to the pixel value of the first gray scale image, whether the to-be-diagnosed transformer is faulted is determined; when faults exist, the characteristic images of the transformer parts of the to-be-diagnosed transformer are acquired, and comprise gray scale images; the first deep structure characteristics of the characteristic images are determined; the first deep structure characteristics are used to reflect the appearance characteristics, the texture characteristics, and the fault position characteristics of the transformer parts; second deep structure characteristics matched with the first deep structure characteristics are determined according to a predetermined corresponding relation, and the part names corresponding to the determined second deep structure characteristics are used as the names of the transformer parts having the overheating faults. According to the invention, the names of the transformer parts having the concrete faults are determined.

Description

technical field [0001] This application relates to the field of transformer fault diagnosis, and especially designs a method and device for transformer fault diagnosis. Background technique [0002] In the power system, the transformer is a key device in the power system. Therefore, it is necessary to diagnose whether the transformer has an overheating fault at all times. Because the infrared image of the transformer can reflect the temperature of the transformer, and it has the characteristics of not being interfered by light and electromagnetic signals, it is widely used in the method of detecting whether there is an overheating fault in the transformer. [0003] In the prior art, generally, multiple infrared images of transformers with overheating faults and multiple infrared images of normal operating transformers are obtained respectively; and multiple grayscale images of transformers with overheating faults are obtained, and multiple first grayscale images, and obtain...

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Problems solved by technology

[0004] However, the inventor found in the research process that in the prior art, only whether there is a fault in the transformer to be diagnosed is determined, and when it is determined that the transformer to be diagnosed has an overheating fault, the name of the transformer component that has the overheating fault cannot be determined

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