Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于PTP的时间同步系统可用性分析及优化策略

来源:电工电气发布时间:2017-04-21 09:21 浏览次数:7
基于PTP的时间同步系统可用性分析及优化策略
 
孙晓明,孙中尉,牛得存
(山东电力工程咨询院有限公司,山东 济南 250013)
 
    摘 要:基于网络的IEEE 1588 时间同步协议(PTP),是适应未来智能变电站关键应用要求的精确时间同步方式。提出了一种利用故障树分析对PTP 可靠性进行量化评估的方法,对IEEE PC37.238 推荐的PTP 网络结构可用性进行理论计算,分析影响PTP 对时可靠性的关键因素,对已建系统可靠性进行量化评估,并提出了PTP 网络时延和PTP 对时网络的架构优化策略,提高了IEEE 1588 时间同步系统的可用性。
    关键词:时间同步;IEEE 1588;可靠性;故障树分析;网络拓扑
    中图分类号:TM63;TM76     文献标识码:A     文章编号:1007-3175(2017)04-0061-07
 
Availability Analysis and Optimization Strategy for Time Synchronization
System Based on Precision Timing Protocol
 
SUN Xiao-ming, SUN Zhong-wei, NIU De-cun
(Shandong Electric Power Engineering Consulting Institute Corp., Ltd, Jinan 250013, China)
 
    Abstract: The IEEE 1588 precision timing protocol (PTP) is the recommended means of providing precise timing synchronization mode for the key application of future substations. This paper presented a kind of quantitative assessment method of PTP reliability using fault tree analysis, carried out theoretical calculation for the usability of PTP network structure recommended by IEEE PC37.238, analyzed the key factors impacting on PTP precision timing reliability and carried out quantitative assessment for the built system reliability. The PTP network delay and the framework optimizing strategy of PTP precise timing network were raised to improve the availability of IEEE 1588 time synchronization system.
    Key words: time synchronization; IEEE 1588; reliability; fault tree analysis; network topology
 
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