基于引导滤波的电力设备热故障诊断方法研究

电力设备热故障为一种常见的设备故障类型.本文提出一种基于引导滤波的电力设备热故障诊断方法.该方法包括两个主要步骤.首先,基于热故障区域与图像背景在红外图像上的温度差异特性,逐像素计算热故障区域与图像背景的马氏距离,获得初始的热故障诊断结果.然后,采用引导滤波对初始诊断结果进行优化,充分利用相邻像素之间的空间相关性,优化...

Thermal Fault Diagnosis of Power Equipments Based on Guided Filter

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.