Thermal Fault Diagnosis of Power Equipments Based on Guided Filter

HUANG Zhihong; WU Sheng; XIAO Jian; ZHANG Keren; HUANG Wei

Volume 43 Issue 9

Sep. 2021

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Infrared Technology > 2021 > 43(9): 910-915.

HUANG Zhihong, WU Sheng, XIAO Jian, ZHANG Keren, HUANG Wei. Thermal Fault Diagnosis of Power Equipments Based on Guided Filter[J]. Infrared Technology , 2021, 43(9): 910-915.

Citation:

HUANG Zhihong, WU Sheng, XIAO Jian, ZHANG Keren, HUANG Wei. Thermal Fault Diagnosis of Power Equipments Based on Guided Filter[J]. Infrared Technology , 2021, 43(9): 910-915.

Citation:

HUANG Zhihong, WU Sheng, XIAO Jian, ZHANG Keren, HUANG Wei. Thermal Fault Diagnosis of Power Equipments Based on Guided Filter[J]. Infrared Technology , 2021, 43(9): 910-915.

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Thermal Fault Diagnosis of Power Equipments Based on Guided Filter

State Grid Hunan Electric Power Corporation Limited Research Institute, Changsha 410007, China

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Received Date: December 29, 2020
Revised Date: March 10, 2021

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Abstract

Abstract

Thermal fault is a common fault type in the power equipment. This paper introduces a thermal fault diagnosis method for the power equipment by employing guided filter. The proposed method consists of two main steps. First, according to the temperature difference between the thermal fault area and the background in infrared images, the Mahalanobis distance between the fault area and the background is estimated, and the initial thermal fault diagnosis results can be generated. Then, guided filter is used to improve the diagnosis performance, by utilizing the spatial correlation between adjacent pixels fully utilized. Experimental results demonstrate that the proposed diagnosis method has a better diagnosis performance than the current state-of-the-art detectors.
- power equipment,
- infrared image,
- thermal fault diagnosis,
- anomaly detection,
- guided filter

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