基于AOK-TFR的轨道电路故障诊断方法
|
摘要
为弥补现有补偿电容检测方法在检测及时性和检测成本等方面的不足,基于传输线理论,提出了机车信号感应电压幅值包络(IVECS)仿真模型;在此基础上,分析了补偿电容故障对IVECS的影响规律,建立并验证了基于频率的IVECS等效回归模型;利用补偿电容故障位置前后IVECS的频率变化,提出了基于自适应最优核时-频分布的补偿电容故障诊断方法.该方法基于机车信号的实际数据,采用B样条离散二进小波对数据进行滤波降噪处理,并利用自适应最优核时-频分布提取处理结果的时-频信息,再通过检测时-频信息中频率的变化实现对故障电容的定位.经过对随机抽取的100段实际数据的测试,准确率约为92.58%,表明该方法能准确检测轨道电路发生故障的补偿电容位置.
In order to make up for the shortcoming of the existing methods for compensation capacitor fault detection in both timeliness and cost aspects,a simulation model for induced voltage envelope of cab signal was proposed based on the transmission-line theory.On this basis,the influence law of compensation capacitor failure on the induced voltage envelope was analyzed,and a frequency-based equivalent regression model for the induced voltage envelope was built and verified.Based on this regression model,a compensation capacitor fault detection method was proposed based on the AOK-TFR(adaptive optimal kernel time-frequency representation) and the fact that the frequency of the induced voltage envelope changes ahead and behind the location of the defected capacitor.In this method,the signal to be processed,directly from a cab signal recorder,is denoised by using the B-spline discrete binary wavelet transform(DBWT).Then its time-frequency distribution information is extracted by the AOK-TFR,and the fault compensation capacitor is lastly located in light of the change of the frequency extracted.The experimental result of actual data from 100 segments selected randomly shows that the accuracy rate is about 92.58% to indicate that the proposed method can accurately detect the location of a defected compensation capacitor under the condition that other capacitors are in good condition.
In order to make up for the shortcoming of the existing methods for compensation capacitor fault detection in both timeliness and cost aspects,a simulation model for induced voltage envelope of cab signal was proposed based on the transmission-line theory.On this basis,the influence law of compensation capacitor failure on the induced voltage envelope was analyzed,and a frequency-based equivalent regression model for the induced voltage envelope was built and verified.Based on this regression model,a compensation capacitor fault detection method was proposed based on the AOK-TFR(adaptive optimal kernel time-frequency representation) and the fact that the frequency of the induced voltage envelope changes ahead and behind the location of the defected capacitor.In this method,the signal to be processed,directly from a cab signal recorder,is denoised by using the B-spline discrete binary wavelet transform(DBWT).Then its time-frequency distribution information is extracted by the AOK-TFR,and the fault compensation capacitor is lastly located in light of the change of the frequency extracted.The experimental result of actual data from 100 segments selected randomly shows that the accuracy rate is about 92.58% to indicate that the proposed method can accurately detect the location of a defected compensation capacitor under the condition that other capacitors are in good condition.
引文
[1]郑福林.关于补偿电容损坏的原因分析及防护探讨[J].铁路计算机应用,2009,18(11):52-53.ZHENG Fulin.Analysis and discussion on reason andprotection to failure of compensation capacitor[J].Railway Computer Application,2009,18(11):52-53.
[2]张玮.铁路电务检测车的开发及应用[J].铁路计算机应用,2009,18(3):46-48.ZHANG Wei.Development and application of testingcar for railway signal and communication[J].RailwayComputer Application,2009,18(3):46-48.
[3]金国彬,李玲,黄绍平,等.基于AOK TFR理论的电力系统暂态信号分析新方法[J].电力自动化设备,2008,28(5):63-67.JIN Guobin,LI Ling,HUANG Shaoping,et al.Powersystem transient signal analysis based on AOK TFR[J].Electric Power Automation Equipment,2008,28(5):63-67.
[4]刘喜武,张宁,勾永峰,等.地震勘探信号时频分析方法对比与应用分析[J].地球物理学进展,2008,23(3):743-753.LIU Xiwu,ZHANG Ning,GOU Yongfeng,et al.Thecomparison and application of time-frequency analysismethods to seismic signal[J].Progress in Geophysics,2008,23(3):743-753.
[5]钱淑华,王新晴,李焕良.二次型时频分布在机械故障诊断中的应用[J].西南交通大学学报,2003,38(5):578-580.QIAZN Shuhua,WANG Xinqing,LI Huanliang.Application of quadric time-frequency distribution tomechanical fault diagnosis[J].Journal of SouthwestJiaotong University,2003,38(5):578-580.
[6]朱玉鹏,王宏强,肖顺平.基于自适应核时频分布的机动目标ISAR成像[J].现代雷达,2009,31(3):38-42,47.ZHU Yupeng,WANG Hongqiang,XIAO Shunping.ISAR imaging with maneuvering taget based on adaptivekernel time-frequency distribution[J].Modern Radar,2009,31(3):38-42,47.
[7]赵会兵,章宇舟,汪希时.电容补偿式轨道电路若干问题的研究[J].铁道学报,1998,20(4):77-81.ZHAO Huibing,ZHANG Yuzhou,WANG Xishi.Studyon some problems of track circuit with compensatingcapacitors[J].Journal of the China Railway Society,1998,20(4):77-81.
[8]邱宽民.JT1-CZ2000型机车信号车载系统[M].北京:中国铁道出版社,2007:53-54.
[9]赵怀东.ZPW-2000A型自动闭塞设备安装与维护[M].北京:中国铁道出版社,2005:234-235.
[10]郭文艳,韩崇昭,雷明.基于EMD和灰关联技术的航迹关联方法[J].控制与决策,2008,40(5):803-807.GUO Wenyan,HAN Chongzhao,LEI Ming.Trackassociation approach based on EMD method and graycorrelation technique[J].Control and Decision,2008,40(5):803-807.
[11]DOUGLAS L J,RICHARD G B.An adaptive optimal-kernel time-frequency representation[J].IEEE Trans.on Signal Processing,1995,43(10):2361-2371.
[12]ZHAO Linhai,XU Xun.Application of waveletsanalysis technique in the analyzing and processing offrequency shift signal[C]∥Proceedings of the SeventhInternational Conference on Electronic Measurement&Instruments.Beijing:International AcademicPublishers Ltd,2005:281-284.
[13]郭世伟,林建辉.梁结构的区间B样条小波混合有限元法[J].西南交通大学学报,2010,45(1):17-22.GUO Shiwei,LIN Jianhui.Mixed FEM of B-splinewavelet on interval for beam structures[J].Journal ofSouthwest Jiaotong UNiversity,2010,45(1):17-22.
[14]胡昌华,李国华,刘涛,周志杰.基于MATLAB 6.x的系统分析与设计:小波分析[M].西安:西安电子科技大学出版社,2004:210-216.
[15]SHENSA M J.Wedding the a trous and the Mallatalgorithm[J].IEEE Trans.on Signal Processing,1992,SP-40(10):2464-2484.
[16]中华人民共和国铁道部.铁路信号维护规则技术标准[S].北京:中国铁道出版社,2008.
[17]张鸿燕,耿征.Levenberg-Marquardt算法的一种新解释[J].计算机工程与应用,2009,45(19):5-8.ZHANG Hongyan,GENG Zheng.Novel interpretationfor levenberg-marquardt algorithm[J].ComputerEngineering and Applications,2009,45(19):5-8.
[2]张玮.铁路电务检测车的开发及应用[J].铁路计算机应用,2009,18(3):46-48.ZHANG Wei.Development and application of testingcar for railway signal and communication[J].RailwayComputer Application,2009,18(3):46-48.
[3]金国彬,李玲,黄绍平,等.基于AOK TFR理论的电力系统暂态信号分析新方法[J].电力自动化设备,2008,28(5):63-67.JIN Guobin,LI Ling,HUANG Shaoping,et al.Powersystem transient signal analysis based on AOK TFR[J].Electric Power Automation Equipment,2008,28(5):63-67.
[4]刘喜武,张宁,勾永峰,等.地震勘探信号时频分析方法对比与应用分析[J].地球物理学进展,2008,23(3):743-753.LIU Xiwu,ZHANG Ning,GOU Yongfeng,et al.Thecomparison and application of time-frequency analysismethods to seismic signal[J].Progress in Geophysics,2008,23(3):743-753.
[5]钱淑华,王新晴,李焕良.二次型时频分布在机械故障诊断中的应用[J].西南交通大学学报,2003,38(5):578-580.QIAZN Shuhua,WANG Xinqing,LI Huanliang.Application of quadric time-frequency distribution tomechanical fault diagnosis[J].Journal of SouthwestJiaotong University,2003,38(5):578-580.
[6]朱玉鹏,王宏强,肖顺平.基于自适应核时频分布的机动目标ISAR成像[J].现代雷达,2009,31(3):38-42,47.ZHU Yupeng,WANG Hongqiang,XIAO Shunping.ISAR imaging with maneuvering taget based on adaptivekernel time-frequency distribution[J].Modern Radar,2009,31(3):38-42,47.
[7]赵会兵,章宇舟,汪希时.电容补偿式轨道电路若干问题的研究[J].铁道学报,1998,20(4):77-81.ZHAO Huibing,ZHANG Yuzhou,WANG Xishi.Studyon some problems of track circuit with compensatingcapacitors[J].Journal of the China Railway Society,1998,20(4):77-81.
[8]邱宽民.JT1-CZ2000型机车信号车载系统[M].北京:中国铁道出版社,2007:53-54.
[9]赵怀东.ZPW-2000A型自动闭塞设备安装与维护[M].北京:中国铁道出版社,2005:234-235.
[10]郭文艳,韩崇昭,雷明.基于EMD和灰关联技术的航迹关联方法[J].控制与决策,2008,40(5):803-807.GUO Wenyan,HAN Chongzhao,LEI Ming.Trackassociation approach based on EMD method and graycorrelation technique[J].Control and Decision,2008,40(5):803-807.
[11]DOUGLAS L J,RICHARD G B.An adaptive optimal-kernel time-frequency representation[J].IEEE Trans.on Signal Processing,1995,43(10):2361-2371.
[12]ZHAO Linhai,XU Xun.Application of waveletsanalysis technique in the analyzing and processing offrequency shift signal[C]∥Proceedings of the SeventhInternational Conference on Electronic Measurement&Instruments.Beijing:International AcademicPublishers Ltd,2005:281-284.
[13]郭世伟,林建辉.梁结构的区间B样条小波混合有限元法[J].西南交通大学学报,2010,45(1):17-22.GUO Shiwei,LIN Jianhui.Mixed FEM of B-splinewavelet on interval for beam structures[J].Journal ofSouthwest Jiaotong UNiversity,2010,45(1):17-22.
[14]胡昌华,李国华,刘涛,周志杰.基于MATLAB 6.x的系统分析与设计:小波分析[M].西安:西安电子科技大学出版社,2004:210-216.
[15]SHENSA M J.Wedding the a trous and the Mallatalgorithm[J].IEEE Trans.on Signal Processing,1992,SP-40(10):2464-2484.
[16]中华人民共和国铁道部.铁路信号维护规则技术标准[S].北京:中国铁道出版社,2008.
[17]张鸿燕,耿征.Levenberg-Marquardt算法的一种新解释[J].计算机工程与应用,2009,45(19):5-8.ZHANG Hongyan,GENG Zheng.Novel interpretationfor levenberg-marquardt algorithm[J].ComputerEngineering and Applications,2009,45(19):5-8.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心