Infrared Recognition Method for High Thermal Faults in Substation Equipment Based on Spatial Optical Sensing Technology
There are very strict requirements for both technical and operational personnel in the process of identifying faults in substation equipment,but the accuracy of fault identification is still relatively low.To this end,a infrared recognition method for high thermal faults in substation equipment based on spatial optical sensing technology is proposed.After collecting infrared images of substation equipment,a series of processes such as threshold segmentation,image enhancement,and lighting component estimation are carried out to weaken the influence of background on target recognition and identify the area where the target is located;Calculate the probability density of temperature in the target area,compare it with the temperature range,determine the range of high temperature areas,and accurately identify high temperature faults in substation equipment.The proposed method was used to identify the fault locations of lightning arresters,main transformer bushings,current transformers,and isolation switches.The results showed that the target fault locations identified by the proposed method were very accurate,and there were no false detections or missed detections.
space optical sensing technologytemperature probability densityimage segmentationlow light areasoptimal threshold
NETL
NSTL
万方数据
维普
