无线电工程2024，Vol.54Issue(6)：1536-1542,7.DOI:10.3969/j.issn.1003-3106.2024.06.024
基于红外测温技术的电能表电流采样回路失流故障分析
Fault Analysis of Current Sampling Circuit of Watt-hour Meter Based on Infrared Temperature Measurement Technology
摘要
Abstract
A method for analyzing the loss of current fault in the current sampling circuit of a Watt-hour meter based on infrared temperature measurement technology is researched to ensure the safe operation of the Watt-hour meter.a model for voltage live line disconnection fault and current sampling circuit fault is built to analyze the reasons for the current sampling circuit loss fault of the Watt-hour meter,and based on this,the infrared thermal imaging principle is used to collect the radiation energy of the Watt-hour meter current sampling circuit,atmosphere,and surrounding object.A two-dimensional infrared image that displays the temperature of the Watt-hour meter current sampling circuit is generated to provide image information for the subsequent positioning of the current sampling circuit loss of the Watt-hour meter;The grayscale difference addition method is used to process multi-level infrared two-dimensional images,and an interpolation algorithm is used to construct a three-dimensional image.The location of the current loss fault is located based on the slight difference between the current sampling circuit of the Watt-hour meter and the surrounding state in the three-dimensional image.The experiment shows that this method can monitor the temperature of the current sampling circuit of the Watt-hour meter in real-time,visually identify problems,and reliably and accurately locate the location of the current sampling circuit loss fault of the Watt-hour meter.关键词
红外测温技术/电能表/电流采样回路/失流故障分析/火线断线故障/辐射能量Key words
infrared temperature measurement technology/Watt-hour meter/current sampling loop/current loss fault analysis/live wire disconnection fault/radiation energy分类
信息技术与安全科学引用本文复制引用
黄天富,吴志武,王春光,林彤尧,黄汉斌..基于红外测温技术的电能表电流采样回路失流故障分析[J].无线电工程,2024,54(6):1536-1542,7.基金项目
国家电网公司总部科技项目:广域级高压电能计量装置运行误差监测及失准预警技术研究与应用(5400-202116474A-0-5-ZN)State Grid Corporation of China Headquarters Technology Project:Research and Application of Operation Error Monitoring and Misalign-ment Warning Technology for Wide Area High Voltage Energy Metering Devices(5400-202116474A-0-5-ZN) （5400-202116474A-0-5-ZN）
