用于线路纵差保护的PTN时分复用业务时延分析

PTN承载的时分复用业务具有显著随机性,利用此类业务传输线路纵差保护数据需要全面分析业务时延和通道不对称性。在全面分析业务时延形成机理的基础上,建立了时延模型,该模型包含固定时延和随机时延两种分量。给出了数据分组随机时延的数值仿真方法,该方法可用来研究以太网帧长、带宽占用率和路径跳数等不同条件下的时延分布特征。定量分析了PTN承载时分复用业务对线路纵差保护通信需求的适应性。研究成果具有工程参考价值。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 43; no. 23; pp. 56 - 62
Main Author 许俊现 高会生 汪洋
Format Journal Article
LanguageChinese
Published 河北省电力公司,河北 石家庄,050021%华北电力大学,河北 保定,071003%中国电力科学研究院,北京,100192 2015
Subjects
分组传输网
抖动
时分复用
时延
纵联差动保护
longitudinal differential protection
时分复用
delay
jitter
time division multiplexing
分组传输网
packet transmission network
时延
纵联差动保护
抖动
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ISSN1674-3415

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Summary:PTN承载的时分复用业务具有显著随机性,利用此类业务传输线路纵差保护数据需要全面分析业务时延和通道不对称性。在全面分析业务时延形成机理的基础上,建立了时延模型,该模型包含固定时延和随机时延两种分量。给出了数据分组随机时延的数值仿真方法,该方法可用来研究以太网帧长、带宽占用率和路径跳数等不同条件下的时延分布特征。定量分析了PTN承载时分复用业务对线路纵差保护通信需求的适应性。研究成果具有工程参考价值。
Bibliography:XU Junxian, GAO Huisheng, WANG Yang （1. Hebei Electric Power Corporation, Shijiazhuang 050021, China; 2. North China Electric Power University, Baoding 071003, China; 3. China Electric Power Research Institute, Beijing 100192, China）
packet transmission network; longitudinal differential protection; time division multiplexing; delay; jitter
The time division multiplexing service carried by packet transmission network （PTN）, has significant stochastic characteristic. When this kind of service is used for data transmission of line longitudinal differential protection, it is necessary to make the comprehensive analysis on service delay and channel asymmetry. By analyzing the mechanism of delay time, a delay model including deterministic component and stochastic component is established. Considering Ethernet frame size, bandwidth usage and path hops, the numerical simulation method for stochastic delay of data packets is given. This method can be used to study on time delay distribution characteristics under differ
ISSN:1674-3415