赵嘉雯, 章晨宇, 路兆铭, 王智慧, 杨德龙, 陈亚文, 胡悦, 李聪. 面向无线时敏电力业务的时间同步技术研究[J]. 电力信息与通信技术, 2022, 20(2): 49-55. DOI: 10.16543/j.2095-641x.electric.power.ict.2022.02.007
引用本文: 赵嘉雯, 章晨宇, 路兆铭, 王智慧, 杨德龙, 陈亚文, 胡悦, 李聪. 面向无线时敏电力业务的时间同步技术研究[J]. 电力信息与通信技术, 2022, 20(2): 49-55. DOI: 10.16543/j.2095-641x.electric.power.ict.2022.02.007
ZHAO Jiawen, ZHANG Chenyu, LU Zhaoming, WANG Zhihui, YANG Delong, CHEN Yawen, HU Yue, LI Cong. Research on Time Synchronization Technology for Wireless Time-Sensitive Power Service[J]. Electric Power Information and Communication Technology, 2022, 20(2): 49-55. DOI: 10.16543/j.2095-641x.electric.power.ict.2022.02.007
Citation: ZHAO Jiawen, ZHANG Chenyu, LU Zhaoming, WANG Zhihui, YANG Delong, CHEN Yawen, HU Yue, LI Cong. Research on Time Synchronization Technology for Wireless Time-Sensitive Power Service[J]. Electric Power Information and Communication Technology, 2022, 20(2): 49-55. DOI: 10.16543/j.2095-641x.electric.power.ict.2022.02.007

面向无线时敏电力业务的时间同步技术研究

Research on Time Synchronization Technology for Wireless Time-Sensitive Power Service

  • 摘要: 能源互联网运作的各个环节都越来越需要精准的时间同步,而现有的绝对时间同步技术在无线业务场景下,因为终端的数量、移动性、无线信道质量等原因,无法达到业务需求的同步精度。因此,文章提出了面向无线时敏电力业务的时间同步技术,以满足业务对高精度时间同步的需求。通过分析电网服务对无线时间同步的需求,结合移动边缘计算技术及基于无线物理层的绝对时间同步技术,实现更灵活的时间分配机制和更准确的时间同步精度。同时,分析了终端设备采用上述技术时同步误差对业务流的影响,并提出了一种在网络边缘使用时间敏感型整形器的优化方案,有效减少了同步误差对平均服务延迟的影响。为能源互联网提供了一种时敏业务的高精度无线时间同步方案。

     

    Abstract: Accurate time synchronization is increasingly required in all links of energy Internet operation, and the existing absolute time synchronization technology can not meet the synchronization accuracy required by the business in the wireless business scenario due to the number of terminals, mobility, wireless channel quality and other reasons. Thus, this paper proposes a time synchronization technology for wireless time-sensitive power services to meet the demand. This paper analyzes the demand for wireless time synchronization in power grid services and combines mobile edge computing technology and the absolute time synchronization technology based on the wireless physical layer to achieve a more flexible time distribution mechanism and more accurate time synchronization accuracy. At the same time, this paper analyzes the effect of synchronization error on the service flow when the terminal device uses the above technology, and proposes an optimization scheme for using time-shaper at the network edge, effectively reducing the impact of synchronization error on the average service delay. This paper provides a high-precision wireless time synchronization solution for time-sensitive services for the energy Internet.

     

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