一种基于边缘计算的气体密度继电器自诊断方法  

A Self-Diagnosis Method for Gas Density Monitor Based on Edge Computing

作　　者：黄小泵 张亮 陈少帅 HUANG Xiao-beng;ZHANG Liang;CHEN Shao-shuai(Shanghai Roye Electric Co.,Ltd.,Shanghai 201802;State Grid Hebei Electric Power Co.,Ltd.Ultra-High Voltage Branch,Shijiazhuang 050000)

机构地区：[1]上海乐研电气有限公司,上海201802 [2]国网河北省电力有限公司超高压分公司,石家庄050000

出　　处：《环境技术》2023年第12期159-164,181,共7页Environmental Technology

摘　　要：针对SF6气体密度继电器需要定期安排运维人员到现场校验,工作量大、成本高的问题,提出采用多传感器融合与边缘计算技术结合的方法,将传统校验仪的功能融合于密度继电器中,使密度继电器不仅具备普通远传密度继电器的功能,还具备自动校验、自我体检的能力,实现密度继电器现场采集的数据在边缘侧就地分析、诊断,实现了密度继电器在运行期间无问题免维护,有问题密度继电器主动上报故障信息,提升电网的运维的智能化水平的目标。试验表明:自校验气体密度继电器在(-30~60)℃试验温度范围内的接点动作性能不受温度的影响,自校验精度与校验仪校验密度继电器的精度误差在0.001 MPa以内,满足工程应用的要求。In view of the problem that SF6 gas density monitor needs to be regularly checked by operation and maintenance personnel on site,which is heavy workload and high cost,a method combining multi-sensor fusion and edge computing technology is proposed to integrate the functions of traditional calibrator into the density monitor,so that the density monitor not only has the functions of ordinary remote density monitor,but also has the capabilities of automatic verification and self examination,The data collected by the density monitor on site is analyzed and diagnosed on the edge side,achieving the goal of problem-free and maintenance-free operation of the density monitor,and the active reporting of fault information by the problematic density monitor,thereby improving the intelligent level of power grid operation and maintenance.The experiment shows that the contact action performance of the self calibration density monitor is not affected by temperature within the test temperature range of(-30~60)℃.The error between the self calibration accuracy and the accuracy of the density monitor verified by the calibrator is within 0.001 MPa,meeting the requirements of engineering applications.

关 键 词：气体密度继电器 校验仪 自动校验 自诊断 监测 压力 设计 

分 类 号：TB302.3[一般工业技术—材料科学与工程]