地铁直流进线振荡电流识别算法研究

王楠清; 漆宇; 忻兰苑; 宋金川; 田行军

doi:10.13890/j.issn.1000-128X.2024.02.017

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地铁直流进线振荡电流识别算法研究

健康与诊断 | 更新时间：2024-08-02

- 地铁直流进线振荡电流识别算法研究
- Research on identification algorithm of oscillating current in DC incoming lines of metro
- 机车电传动 2024年第2期页码：140-150
- 作者机构：
  
  1.中车株洲电力机车研究所有限公司，湖南株洲 412001
  2.天津凯发电气股份有限公司，天津 300392
  3.石家庄铁道大学电气与电子工程学院，河北石家庄 050043
- 作者简介：
  
  王楠清，男，研究方向为牵引供电故障诊断；E-mail: wangnq@csrzic.com
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.02.017
  中图分类号： U231
- 纸质出版日期：2024-03-10，
  
  收稿日期：2023-11-16，
  
  修回日期：2024-01-31，
- 稿件说明：
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王楠清, 漆宇, 忻兰苑, 等. 地铁直流进线振荡电流识别算法研究[J]. 机车电传动, 2024(2): 140-150.

WANG Nanqing, QI Yu, XIN Lanyuan, et al. Research on identification algorithm of oscillating current in DC incoming lines of metro[J]. Electric drive for locomotives,2024(2): 140-150.
王楠清, 漆宇, 忻兰苑, 等. 地铁直流进线振荡电流识别算法研究[J]. 机车电传动, 2024(2): 140-150. DOI：10.13890/j.issn.1000-128X.2024.02.017.

WANG Nanqing, QI Yu, XIN Lanyuan, et al. Research on identification algorithm of oscillating current in DC incoming lines of metro[J]. Electric drive for locomotives,2024(2): 140-150. DOI：10.13890/j.issn.1000-128X.2024.02.017.

摘要

针对地铁直流进线的振荡电流容易引起继电保护系统频繁误动作的问题，文章提出以变分模态分解、样本熵、TOPSIS为核心的故障诊断分析算法，并搭建实时数字仿真试验平台，以地铁继电保护装置为应用场景，通过将改进的进线保护算法与传统逆流保护算法进行试验对比分析，验证了方法在工程实践中的可行性和有效性。结果表明，该方法可有效识别直流进线特殊振荡电流，提高继电保护的可靠性。

Abstract

The paper presents a fault diagnosis and analysis algorithm centered on variational mode decomposition (VMD)

sample entropy

and TOPSIS

to address the challenge of frequent misoperations of relay protection systems triggered by oscillating current in the incoming lines of metro traction power supply systems. Using a real-time digital simulation experimental platform

the improved incoming line protection algorithm was compared with traditional reverse current protection algorithms in the application scenario of metro relay protection devices. The experimental analysis verified the practicality and effectiveness of the proposed approach in engineering applications. The study findings highlight the algorithm’s capacity in identifying special oscillating current in DC incoming lines

offering a valuable means to enhance relay protection reliability.

关键词

地铁牵引供电系统直流进线谐振电流短路电流进线保护变分模态分解

Keywords

metro traction power supply systemresonant current of DC incoming lineshort-circuit currentincoming line protectionvariational mode decomposition (VMD)

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