首页|基于故障时刻自同步的波形比较式多端配电网快速保护方案

基于故障时刻自同步的波形比较式多端配电网快速保护方案

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为打破电气量的同步采集技术壁垒,并合理应对不平衡差流问题,分析了基于故障检测时刻保护数据自同步的实现方法,利用多端电流合成和Tanimoto系数构建了波形相似度比较式保护新判据.基于5G网络数据实时传输功能,形成了一套适用于多端配电网的综合快速保护方案.经PSCAD/EMTDC软件仿真,验证了所提方案能够快速可靠地确定故障区段,能很好地适应配电网复杂故障场景.
Waveform Comparison-based Fast Protection Scheme for Multi-terminal Distribution Network Based on Self-synchronization with Fault Moments
To eliminate the barriers to synchronized collection of electrical quantity data and address the issue of unbalanced differential current,this paper analyzes a method for protection data self-synchronization based on fault detection moments.A waveform similarity comparison based new protection criterion is established by employing multi-terminal current synthesis and Tanimoto coefficient.Based on the real-time data transmission capability of 5G network,a comprehensive and rapid protection scheme for multi-terminal distribution network is developed.Simulations with PSCAD/EMTD software show that the proposed scheme can rapidly and reliably identify fault section,matching the complex fault scenarios in the distribution network.

fault self-synchronizationinformation synthesisTanimoto waveform similarity5G transmissionmulti-terminal distribution networkfast protection scheme

黄见虹、翟博龙、宋福海、肖澍昱、顾本硕、刘伟、徐光福

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国网福建省电力有限公司,福建福州 350003

强电磁工程与新技术国家重点实验室(华中科技大学)湖北武汉 430074

南京南瑞继保工程技术有限公司,江苏南京 211102

故障自同步 信息合成 Tanimoto波形相似度 5G传输 多端配电网 快速保护方案

国家重点研发计划国家电网福建省电力公司科技项目

2021YFB240100452130021N00C

2024

智慧电力
陕西省电力公司

智慧电力

CSTPCD北大核心
影响因子:0.831
ISSN:1673-7598
年,卷(期):2024.52(2)
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