[1]史天玉. 轨道交通直流牵引供电系统短路电流检测方法[J].机械与电子,2021,(03):29-33.
　SHI Tianyu. Short Circuit Current Detection Method for DC Traction Power Supply System of Rail Transit[J].Machinery & Electronics,2021,(03):29-33.
点击复制

 

轨道交通直流牵引供电系统短路电流检测方法

()
分享到：

机械与电子[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2021年03期
页码:
29-33
栏目:
机电一体化技术
出版日期:
2021-03-24

文章信息/Info

Title:
 

Short Circuit Current Detection Method for DC Traction Power Supply System of Rail Transit

文章编号:
1001-2257（2021）03-0029-05
作者:
 史天玉
 中铁第一勘察设计院集团有限公司, 陕西 西安 710043
Author(s):
 

SHI Tianyu

 China Railway First Survey and Design Institute Group Co., Ltd., Xi’an 710043,China
关键词:
 ; 直流牵引供电; 短路检测; 小波包; SOFM神经网络
Keywords:
 ; 

DC traction power supply;  short circuit detection;  wavelet packet;  SOFM neural network

分类号:
TM922.3
文献标志码:
A
摘要:
 针对轨道交通直流牵引供电系统列车启动负荷冲击电流引发的DDL保护误启动问题，提出了基于小波包变换和自组织映射（SOFM）神经网络的短路电流检测方法。该方法采用改进小波包变换将馈线电流信号映射至频域，消除频谱混叠干扰后，提取能够区分负荷冲击电流与远端短路电流的特征向量，将特征向量输入到SOFM神经网络实现短路电流检测。实验结果表明，该方法能够有效区分负荷冲击电流和远端短路电流，且识别准确率优于现有方法。
Abstract:
 Aiming at problem of false start of DDL protection caused by train starting load impulse current in rail transit DC traction power supply system, a short-circuit current detection method based on wavelet packet transform and self-organizing map (SOFM) neural network is proposed. The improved wavelet packet transform is used to map the feeder current signal to the frequency domain. After eliminating the spectrum aliasing interference, the feature vector which can distinguish the load impulse current from the remote short-circuit current is extracted. Then the feature vector is input into SOFM neural network to detect the short-circuit current. The experimental results show that the method can effectively distinguish the load impulse current and the remote short-circuit current, and the recognition accuracy is better than the existing methods.

参考文献/References:

 

[1]董杰,杨志贤,崔秀峰,等.轨道交通直流牵引供电系统近端短路保护模型分析[J].电气传动,2018,48(3):62-65.

[2]杨晓峰,王慧康,郑琼林.直流牵引供电系统中有限边界边缘效应对轨道电位的影响[J].北京交通大学学报,2020,44(3):1-11.

[3]田行军,李夏青,李运华.直流牵引网振荡电流与故障电流波形识别[J].电工技术学报,2013,28(11):247-253.

[4]祝冰心,李夏青,田行军,等.基于关联维数的直流牵引网故障识别[J].北京石油化工学院学报,2014,22(1):37-43.

[5]刘炜,李思文,王竞,等.基于EWT能量熵的直流短路故障辨识[J].电力自动化设备,2020,40(2):149-154.

[6]师睿,王蓉蓉,章鼎然 基于列车负荷特性的电流增量保护优化设计[J].城市轨道交通研究,2019,22(9):79-81,84.

[7]冷月,杨洪耕,王智琦.基于EEMD样本熵的直流牵引网故障电流识别[J].中国测试,2016,42(12):95-99.

[8]费扬,杜庆治.基于小波包能量熵和PSO的轴承故障诊断方法[J].信息技术,2018(4):45-49.

[9]杨名,陈红卫.一种基于小波包和apFFT的间谐波检测方法[J].电力系统保护与控制,2017,45(15):112-117.

[10]林靖怡,王尧,李奎,等.基于自组织特征映射网络的电弧故障检测方法[J].电力自动化设备,2020,40(8):210-219.

相似文献/References:

[1]雷永涛,周 权,张静静. 基于印制电路连接器变形问题的分析和设计改进[J].机械与电子,2019,(01):7.
　,analysis and design improvement of deformation problem based on printed circuit connector[J].Machinery & Electronics,2019,(03):7.
[2]孟繁萃１,张 达２,张 明１. 自然风力对绝缘子结构的影响[J].机械与电子,2019,(01):3.
　,the influence of natural wind on insulator structure[J].Machinery & Electronics,2019,(03):3.
[3]任智勇１,邓晓政１,马丁峰２. 一种发动机试飞数据快速处理方法[J].机械与电子,2019,(01):11.
　,A Fast Processing Method of Multi-subject Engine Flight Test Data[J].Machinery & Electronics,2019,(03):11.
[4]冷雪锋,吴正明. 基于ＳＴＣ１２Ｃ５Ａ６０Ｓ２的１００Ｗ 小型风力发电系统设计[J].机械与电子,2019,(01):15.
　.The Design of 100W Small Wind Power Generation System Based on STC12C5A60S2[J].Machinery & Electronics,2019,(03):15.
[5]查金水,朱志远,邓友银,等. 某大型相控阵雷达测试系统结构设计[J].机械与电子,2019,(01):19.
　,,et al.Structural Design of a Large Phased Array Radar Test System[J].Machinery & Electronics,2019,(03):19.
[6]万 欢,李伟达,李 娟. 一种面向上肢康复的便携式电刺激器设计[J].机械与电子,2019,(01):33.
　,Design of Portable Electric Stimulator for Upper Limb Rehabilitation[J].Machinery & Electronics,2019,(03):33.
[7]郑锦汤１,李玉忠１,２. 紧凑型纯电动汽车动力系统匹配与性能仿真[J].机械与电子,2019,(01):38.
　,Matching and Performance Simulation of Dynamic Systems of Compact Electric Vehicle[J].Machinery & Electronics,2019,(03):38.
[8]吕明珠１,２,苏晓明 １,等. 改进粒子群算法优化的支持向量机在滚动轴承故障诊断中的应用[J].机械与电子,2019,(01):42.
　,,et al.Application of SVM Optimized by IPSO in Rolling Bearing Fault Diagnosis[J].Machinery & Electronics,2019,(03):42.
[9]韩雪莹１,张佳炜２,刘 梦１,等. 集中控制协调多个并网逆变器的谐波补偿[J].机械与电子,2019,(01):49.
　,,et al.Centralized Control Coordination of Harmonic Compensation for Multiple Grid-connected Inverters[J].Machinery & Electronics,2019,(03):49.
[10]蒋 波１,３,周自强２,等. 基于ＰＬＣ的报废汽车拆解线作业控制系统[J].机械与电子,2019,(01):54.
　,,et al.PLC-based ELV Disassembly Line Operation Control System[J].Machinery & Electronics,2019,(03):54.

备注/Memo

备注/Memo:
收稿日期：2020-10-25

作者简介：史天玉（1985-），男，甘肃张掖人，硕士，工程师，研究方向为电力牵引供电系统。

更新日期/Last Update: 2021-03-22