中国电力2026，Vol.59Issue(5)：97-108,12.DOI:10.11930/j.issn.1004-9649.202512042
基于录波数据的全域继电保护时钟失步智能校核系统设计
Design of global relay protection clock desynchronization intelligent verification system based on waveform recording data
摘要
Abstract
Time synchronization of protective relay devices is essential for post-fault incident analysis and action tracing in new power systems.To address the limitations of incomplete clock monitoring coverage,reliance on manual synchronization correction,and lack of a unified management platform,this paper establishes a global clock desynchronization intelligent verification system for protective relay devices based on waveform recording data.Leveraging the existing master-slave waveform recording architecture,the system deploys an online monitoring unit for relay protection clock desynchronization at the master station,which centrally accesses wave recording data from multiple substations.Two schemes are designed,namely time-phased remote startup monitoring and homologous data comparison monitoring,to realize online monitoring of clock-offset of global protection devices under both fault and non-fault conditions.On this basis,the system incorporates a Kalman filtering intelligent verification algorithm with clock-offset-drift rate as state variables,which filters and predicts multi-time observation results while considering the influence of measurement noise to generate more accurate deviation verification values.Field applications demonstrate that the system can effectively identify desynchronized relays and maintain the post-synchronization clock deviation of devices within 20 ms,which is conducive to post-incident analysis and operation maintenance of clock synchronization status under relay protection device clock desynchronization.关键词
录波数据/继电保护装置/时钟失步监测/时钟偏差计算/状态运行维护Key words
waveform recording data/protective relay device/clock desynchronization monitoring/clock-offset estimation/condition-based maintenance引用本文复制引用
石恒初,陈晓帆,游昊,虎啸,许守东,关远鹏..基于录波数据的全域继电保护时钟失步智能校核系统设计[J].中国电力,2026,59(5):97-108,12.基金项目
国家自然科学基金资助项目(62301168) （62301168）
云南电网有限责任公司科技项目(YNKJXM20240221). This work is supported by National Natural Science Foundation of China(No.62301168) （YNKJXM20240221）
Science and Technology Project of Yunnan Power Grid Co.,Ltd.(No.YNKJXM20240221). （No.YNKJXM20240221）
