| 引用本文: | 方子希,高会生.抗时延抖动的线路纵差保护分组传输通道配置参数影响分析[J].电力系统保护与控制,2017,45(12):82-87.[点击复制] |
| FANG Zixi,GAO Huisheng.An impact analysis of the configuration parameters against delay jitter of line comparison pilot protection in packet transport channel[J].Power System Protection and Control,2017,45(12):82-87[点击复制] |
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| 摘要: |
| 分组传送网承载电力通信时分复用业务存在随机时延抖动，严重的随机时延抖动会影响线路纵差保护数据的实时性，进而威胁电网安全。在全面分析分组传送网调度机制和时延抖动原理的基础上，建立了分组传送端到端随机时延抖动的数学模型。数值仿真研究了分组封装尺寸、背景流量、网络节点数和节点吞吐量对随机时延抖动的影响。结果表明，合理设置这几个参数可以有效降低随机时延抖动，提升网络性能。研究成果对线路纵差保护数据分组传输通道的配置具有工程参考价值。 |
| 关键词: 分组传送网 随机时延 抖动 时分复用 电力通信网 |
| DOI：10.7667/PSPC160972 |
| 投稿时间：2016-06-29修订日期：2016-12-19 |
| 基金项目:中国电力科学研究院信息通信研究所重点资金资助项目“PTN承载电网业务和测试数据分析研究”(1200215 031001) |
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| An impact analysis of the configuration parameters against delay jitter of line comparison pilot protection in packet transport channel |
| FANG Zixi,GAO Huisheng |
| (Department of Electronics and Communication Engineering, North China Electric Power University, Baoding 071003, China) |
| Abstract: |
| The random delay jitter of the time division multiplexing has an influence on the real-time of line comparison pilot protection data in packet transport network, such jitter even makes a threat to the security of power grid. By analyzing the scheduling mechanism and the jitter principle, a random delay jitter mathematical model for end to end service is established. The influence of network parameters, such as package size, background traffic, service path node number and the node throughput are researched by numerical simulation. Simulative results show that, the random delay jitter can be reduced and the network performance can be improved effectively by setting these parameters reasonably. The research results have value for the configuration of the line comparison pilot protection data in packet transport channel. |
| Key words: packet transport network random delay jitter time division multiplexing electric power communication network |
