Quantitative analysis of the influence of asymmetric channel delay on relay protection's reliability

Huisheng GAO; Qing SHEN

doi:10.11959/j.issn.1000−0801.2019016

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Quantitative analysis of the influence of asymmetric channel delay on relay protection's reliability

Research and development | 更新时间：2024-06-05

- Quantitative analysis of the influence of asymmetric channel delay on relay protection's reliability
- Telecommunications Science Vol. 35, Issue 1, Pages: 90-96(2019)
- 作者机构：
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- DOI：10.11959/j.issn.1000−0801.2019016
  CLC： TM773
- Published Online：2019-01，
  
  Published：20 January 2019
- 稿件说明：
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Huisheng GAO, Qing SHEN. Quantitative analysis of the influence of asymmetric channel delay on relay protection's reliability[J]. Telecommunications science, 2019, 35(1): 90-96.
DOI：

Huisheng GAO, Qing SHEN. Quantitative analysis of the influence of asymmetric channel delay on relay protection's reliability[J]. Telecommunications science, 2019, 35(1): 90-96. DOI： 10.11959/j.issn.1000−0801.2019016.

摘要

数字通道的不对称时延对线路电流差动保护具有不利的影响，其影响机理复杂、后果严重，有必要采用有效的方法对其进行分析，以提高继电保护的可靠性。首先，分析了线路电流差动的工作原理和动作判据；然后，针对不对称时延对继电保护可靠性的影响，确定了不同故障条件下的量化分析方法；最后，通过实例验证了该方法的可行性和正确性。研究结果表明，不对称时延对继电保护可靠性的影响与故障条件有显著相关性，这一结论对继电保护可靠性评估和通道优化具有工程参考价值。

Abstract

The asymmetric delay of digital channels has negative effects on line current differential protection in a complex mechanism. Hence

it's necessary to use effective methods to improve the reliability of relay protection. Firstly

the operation principle and criterion of line current differential protection were analyzed.Then

the influence of asymmetric delay on the reliability of relay protection was analyzed

and the quantitative analysis method of the influence under different fault conditions was determined. Finally

the feasibility and correctness of the method were verified. The results show that effects of asymmetric delay on reliability of relay protection have a significant correlation with fault conditions. This conclusion has practical value in reliability evaluation and channel optimization of relay protection.

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references

邓翔天，袁荣湘，肖振锋，等 . 基于瞬时功率理论的输电线路分相电流差动保护 [J ] . 电力自动化设备， 2014 , 34 ( 11 ): 82 - 88 .

DENG X T , YUAN R X , XIAO Z F , et al . Split-phase differential current protection based on instantaneous power theory for power transmission line [J ] . Electric Power Automation Equipment , 2014 , 34 ( 11 ): 82 - 88 .

滕玲，丁慧霞，刘革，等 . 光纤复用保护通道传输时延差指标研究 [J ] . 电信科学， 2010 , 26 ( 10 ): 102 - 106 .

TENG L , DING H X , LIU G , et al . Research on transmission delay difference of optical multiplexing protection channel [J ] . Telecomunications Science , 2010 , 26 ( 10 ): 102 - 106 .

刘国军，武晓宇，李建岐，等 . 分组传送网承载电力多业务的隔离性与关联性分析 [J ] . 电力系统自动化， 2016 , 40 ( 20 ): 140 - 146 .

LIU G J , WU X Y , LI J Q , et al . Isolation and association and analysis on bearing electric power multi-service through packet transport network [J ] . Automation of Electric Power Systems , 2016 , 40 ( 20 ): 140 - 146 .

高会生，汪洋 . PTN 业务随机时延对差动保护同步性能的影响分析 [J ] . 电力自动化设备， 2015 , 35 ( 7 ): 165 - 171 .

GAO H S , WANG Y . Effect of PTN service random delay on synchronization performance on current differential protection [J ] . Electric Power Automation Equipment , 2015 , 35 ( 7 ): 165 - 171 .

冯顺，张孝顺，曲欣，等 . 通道延时不一致对区外故障差动保护的影响 [J ] . 电工技术， 2017 , 38 ( 4 ): 17 - 18 .

FENG S , ZHANG X S , QU X , et al . Influence of channel delay inconsistency on differential protection external fault [J ] . Electric Engineering , 2017 , 38 ( 4 ): 17 - 18 .

WU Y , LI M , TANG Y , et al . Reliability analysis models for differential protection considering communication delays and errors [J ] . Energies , 2015 , 8 ( 4 ): 2454 - 2472 .

BLAIR S M , BOOTH C D , VALCK B D , et al . Modelling and analysis of asymmetrical latency in packet-based networks for current differential protection application [J ] . IEEE Transactions on Power Delivery , 2018 , 33 ( 3 ): 1185 - 1193 .

IEEE . IEEE guide for power system protective relay applications over digital communication channels: StdC37.2362013 [S ] . 2013 .

GUO T , MILANOVIC J V . Probabilistic framework for assessing the accuracy of data mining tool for online prediction of transient stability [J ] . IEEE Transactions on Power Systems , 2013 , 29 ( 1 ): 377 - 385 .

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