电气技术2025，Vol.26Issue(11)：58-63,6.
无线金属氧化物避雷器在线监测系统关键技术研究
Research on key technologies of metal oxide arrester online monitoring system based on long range radio
摘要
Abstract
Online resistive current monitoring can detect early insulation faults in metal oxide arresters(MOA).Measurement accuracy depends on leakage current and bus voltage sampling synchronization.The wireless MOA monitoring systems are easy to install but have synchronization limitations.This paper proposes a kind of long range radio(LoRa)-based time synchronization solution.The physical layer broadcast of the server broadcasts achieves μs-level sync between aggregation nodes and terminals.Terminals are self-powered,requiring specialized power management scheme.A floating coefficient dynamically calculates next wake-up thresholds.This significantly improves monitoring data real-time performance.关键词
金属氧化物避雷器(MOA)/阻性电流/采样同步/远距离无线电(LoRa)Key words
metal oxide arresters(MOA)/resistive current/sampling synchronization/long range radio(LoRa)引用本文复制引用
陈志刚,李向君,崔龙飞,祁峰,刘迎辉..无线金属氧化物避雷器在线监测系统关键技术研究[J].电气技术,2025,26(11):58-63,6.基金项目
国家重点研发计划(2023YFB2405903) （2023YFB2405903）
