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
黄天富 1吴志武 1王春光 1林彤尧 1黄汉斌1
作者信息
- 1. 国网福建省电力有限公司营销服务中心,福建福州 350013
- 折叠
摘要
研究基于红外测温技术的电能表电流采样回路失流故障分析方法,保证电能表安全运行.构建电压火线断线故障与电流采样回路故障模型,分析电能表电流采样回路失流故障原因,以此为基础,利用红外热成像原理采集电能表电流采样回路、大气以及周围物体的辐射能量,生成展现电能表电流采样回路温度的二维红外图像,为后续电能表电流采样回路失流故障定位提供图像信息;采用灰度差异加成法处理多层级红外二维图像,结合插值算法组建三维图像,依据三维图像中电能表电流采样回路与周围状态的轻微差异定位失流故障位置.实验表明,该方法能够实时监测电能表电流采样回路的温度,直观发现问题,可靠且准确地定位电能表电流采样回路失流故障位置.
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引用本文复制引用
基金项目
国家电网总部科技项目(5400-202116474A-0-5-ZN)
出版年
2024
国家科技期刊平台
NSTL
万方数据