电力系统自动化2018，Vol.42Issue(12)：148-153,6.DOI:10.7500/AEPS20170512010
智能变电站IEEE 1588同步时延优化方法
Optimization Method of IEEE 1588 Synchronization Time Delay for Smart Substation
摘要
Abstract
In the time synchronization process of smart substation,there is one noteworthy problem that the delay jitter of paths in the time-synchronization communication network may cause the degradation of the synchronization precision.Therefore,this paper proposed an IEEE 1588 synchronization time-delay optimization method.Firstly,this paper analyzes the course of the synchronizations error caused by delay jitter of paths in the environment of smart substation,which aims to implement the quantitative analysis of the synchronization error mechanism.Secondly,based on the framework of IEEE 1588 protocol,the proposed method is depicted to operate the second time"s compensation using an optimal estimation of delay jitter of paths, which is calculated by a time-delay extending measurement mechanism to compress the synchronization"s influence from delay jitter of paths.Finally,the proposed method is verified by an experiment based on the typical end-to-end transparent clock synchronization mode of IEEE 1588 protocol in smart substation.The simulation results show that the proposed method may achieve better time synchronization performance in terms of precision and stability for slavery clocks in smart substation.关键词
IEEE1588协议/时间同步/时延抖动/智能变电站Key words
IEEE 1588 protocol/time synchronization/time-delay jitter/smart substation引用本文复制引用
朱炎平,陆俊,徐志强,王凯亮..智能变电站IEEE 1588同步时延优化方法[J].电力系统自动化,2018,42(12):148-153,6.基金项目
国家电网公司科技项目(SGHNJY00JHQT1500092).This work is supported by State Grid Corporation of China(No.SGHNJY00JHQT1500092). （SGHNJY00JHQT1500092）
