山东电力技术2025，Vol.52Issue(6)：75-85,94,12.DOI:10.20097/j.cnki.issn1007-9904.2025.06.008
面向智能变电站的时间敏感网络动态时间窗口划分方法
Dynamic Time Window Division of Time-sensitive Networking in Intelligent Substation
摘要
Abstract
With the rapid growth of the business data volume of smart grids,the requirements for low-latency and high-reliability in control information transmission keep continuously increasing.The time-aware shaper(TAS)mechanism is one of the key technologies in time-sensitive networking(TSN)standard.However,the traditional TAS mechanisms can not fully utilize the communication bandwidth resources,which makes it difficult to simultaneously meet the diverse latency requirements of various traffic flows within substations.To address this issue,this paper proposes the idea of dynamic and fine-grained protection time window division.We first propose a traffic mapping scheme based on the integration of International Electrotechnical Commission(IEC)61850 communication and TSN technology.Then,a utility analysis model for time window division is designed.Finally,a utility-based dynamic time window division algorithm is proposed to obtain the maximum benefits overall.The simulation results show that,by optimizing the time window division strategy of the TAS mechanism,the proposed algorithm significantly reduces overall network transmission latency under various scenarios.In particular,the transmission delay of critical generic object-oriented substation event(GOOSE)1A traffic is kept within 3 ms,while ensuring that the packet loss rate of sampled measured value(SMV)traffic does not exceed 3%.关键词
时间敏感网络/IEC 61850/时间感知整形器/流量映射Key words
time-sensitive networking/IEC 61850/time-aware shaper/traffic mapping分类
动力与电气工程引用本文复制引用
李伟,白杨,祁步仁,徐建..面向智能变电站的时间敏感网络动态时间窗口划分方法[J].山东电力技术,2025,52(6):75-85,94,12.基金项目
国网江苏省电力有限公司科技项目(J2023107). Science and Technology Project of State Grid Jiangsu Electric Power Company(J2023107). （J2023107）
