Calculation Method for Maximum Time Delay of Substation Communication Network Based on Time-sensitive Networking

JIA Huibin; HU Zihan; WU Kun; WU Wenrui

doi:10.7500/AEPS20220509007

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Calculation Method for Maximum Time Delay of Substation Communication Network Based on Time-sensitive Networking

Application Research | 更新时间：2025-06-16

- Calculation Method for Maximum Time Delay of Substation Communication Network Based on Time-sensitive Networking
- Automation of Electric Power Systems Vol. 47, Issue 1, Pages: 192-199(2023)
- 作者机构：
  
  华北电力大学电子与通信工程系，河北省保定市 071003
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China(2021YFB2401003)
- DOI：10.7500/AEPS20220509007
  CLC：
- Received：09 May 2022，
  
  Revised：2022-07-23，
  
  Published Online：04 November 2022，
  
  Published：10 January 2023
- 稿件说明：
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贾惠彬,胡子函,吴堃等.基于时间敏感网络的变电站通信网络最大时延计算方法[J].电力系统自动化,2023,47(1):192-199.

JIA Huibin,HU Zihan,WU Kun,et al.Calculation Method for Maximum Time Delay of Substation Communication Network Based on Time-sensitive Networking[J].Automation of Electric Power Systems,2023,47(1):192-199.
贾惠彬,胡子函,吴堃等.基于时间敏感网络的变电站通信网络最大时延计算方法[J].电力系统自动化,2023,47(1):192-199. DOI： 10.7500/AEPS20220509007.

JIA Huibin,HU Zihan,WU Kun,et al.Calculation Method for Maximum Time Delay of Substation Communication Network Based on Time-sensitive Networking[J].Automation of Electric Power Systems,2023,47(1):192-199. DOI： 10.7500/AEPS20220509007.

摘要

基于IEC 61850智能变电站业务的通信需求和时间敏感网络(time-sensitive networking，TSN)的基本原理，应用TSN技术保障变电站通信业务的实时性。基于TSN流调度协议IEEE 802.1Qbv的交换机转发原理建立了信息流服务曲线，基于变电站通信网络报文传输特性建立了信息源到达曲线，利用网络演算理论，提出了变电站报文传输的端到端最大时延计算方法。通过不同层次的变电站通信网络仿真分析，结果表明TSN技术满足了变电站业务的通信需求，尤其在保证关键控制命令等时间敏感业务传输的实时性方面具有明显优势。所提出的最大时延计算方法为智能变电站应用TSN的时延分析提供了理论计算依据。

Abstract

Based on the communication requirements of IEC 61850 smart substation services and the basic principle of time-sensitive networking (TSN)

TSN technology is applied to ensure the real-time characteristic of substation communication services. The information flow service curve is established based on the switch forwarding principle of the TSN flow scheduling protocol IEEE 802.1Qbv. Based on the packet transmission characteristics of the substation communication network

the arrival curve of the information source is established

and a calculation method of the end-to-end maximum time delay of the substation packet transmission is proposed by using the network calculus theory. Through the simulation analysis of different levels of substation communication network

the results show that TSN technology meets the communication requirement of substation services

especially in ensuring the real-time transmission of time-sensitive services such as key control commands. The proposed maximum time delay calculation method provides a theoretical calculation basis for time delay analysis of applying TSN to smart substations.

关键词

Keywords

references

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