偏振光时域反射技术在电缆状态监测中的应用
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摘要
针对目前电缆故障引起的频繁停电维修影响了人们正常生活的问题,提出了一种基于偏振光时域反射仪分布式光纤传感技术的电缆安全状态监测系统,该系统通过计算差值图的峰度系数来衡量曲线变化的陡峭程度,从而进行入侵点的判断。实验表明,系统工作于1μs的脉冲宽度时对扰动位置的判断误差低于100m。通过设置合适的振铃宽度,可以将误报率降至0.5%以下。在不同的电缆长度和电缆布置环境情况下,能够通过对系统参数的配置来满足使用需求。
In order to ensure the good condition of the cable,a lot of manpower have been used to conduct inspections,which are inefficiency for the power companies.Current power outage caused by cable failure seriously affects people's normal life.Therefore,an effective monitoring system is required to monitor the status of the cable online.In this paper,we propose a cable safety monitoring system based on polarization optical time-domain reflectometer.The system judges the intrusion point by calculating the kurtosis coefficient for the different maps.When the system is operating at a pulse width of 1μs,the error on the intrusion localization is less than 100 m.By setting the ring width appropriately,the false alarm rate can be reduced to be less than 0.5%.In the case of different cable lengths and cable layout environments,the requirements for different users can be satisfied by setting the parameters under different system configurations.
In order to ensure the good condition of the cable,a lot of manpower have been used to conduct inspections,which are inefficiency for the power companies.Current power outage caused by cable failure seriously affects people's normal life.Therefore,an effective monitoring system is required to monitor the status of the cable online.In this paper,we propose a cable safety monitoring system based on polarization optical time-domain reflectometer.The system judges the intrusion point by calculating the kurtosis coefficient for the different maps.When the system is operating at a pulse width of 1μs,the error on the intrusion localization is less than 100 m.By setting the ring width appropriately,the false alarm rate can be reduced to be less than 0.5%.In the case of different cable lengths and cable layout environments,the requirements for different users can be satisfied by setting the parameters under different system configurations.
引文
[1]杨斌,田杰,江健武,等.基于全光纤传感技术的电缆健康状态监测系统的研究[J].光学仪器,2012,34(6):71-75.
[2]付柏侨.贵阳供电局配网生产管理系统解决方案研究[D].成都:西南交通大学,2016.
[3] So V C Y,Jiang J W,Cargill J A,et al.Automation of an Optical Time Domain Reflectometer to Measure Loss and Return Loss[J].Journal of Lightwave Technology,1990,8(7):1078-1083.
[4]赵宏振,戴承奇,祖正宁,等.基于OTDR的油气管道监测及定位方案应用[J].光通信技术,2015,39(5):60-62.
[5]顾胜坚,江友华.基于分布式光纤的电力电缆健康状态监测与可视化技术研究[J].仪表技术,2017,(1):1-4.
[6] Tong Y,Dong H,Wang Y,et al.Distributed Incomplete Polarization-OTDR based on Polarization Maintaining Fiber for Multi-Event Detection[J].Optics Communications,2015,357:41-44.
[7] Linze N,Tihon P,Verlinden O,et al.Development of a Multi-Point Polarization-based Vibration Sensor[J].Optics Express,2013,21(5):5606-5624.
[8] Linze N,Megret P,Wuilpart M.Development of an Intrusion Sensor based on a Polarization-OTDR System[J].IEEE Sensors Journal,2012,12(10):3005-3009.
[9] Rogers A J.Polarisation Optical Time Domain Reflectometry[J].Electronics Letters,980,16(13):489-490.
[10]Rogers A J.Polarization-Optical Time Domain Reflectometry:A Technique for the Measurement of Field Distributions[J].Applied Optics,1981,20(6):1060-1074.
[11]Rogers A J,Handerek V A.Frequency-Derived Distributed Optical-Fibre Sensing:Rayleigh Backscatter Analysis[J].Applied Optics,1992,31(21):4091-4095.
[12]Chen M,Zhang X,Wang F,et al.Development of Distributed Vibration Sensing System based on Polarization Optical Time Domain Reflectometry[J].Sensor Letters,2012,10(7):1534-1538.
[13]Wang X,Yan Z,Wang F,et al.SNR Enhanced Distributed Vibration Fiber Sensing System Employing Polarization OTDR and Ultraweak FBGs[J].IEEE Photonics Journal,2015,7(1):1-11.
[14]董贤子,吴重庆,付松年,等.基于P-OTDR分布式光纤传感中信息提取的研究[J].北京交通大学学报,2003,27(6):106-110.
[15]Zhang Z,Bao X.Distributed Optical Fiber Vibration Sensor based on Spectrum Analysis of PolarizationOTDR System[J].Optics Express,2008,16(14):10240-7.
[16]潘运.偏振光时域反射技术的同频振动测量研究[D].南京:南京大学,2017.
[17]李建中,饶云江,冉曾令.POTDR分布式光纤传感及其在安防监测中的应用[J].光子学报,2009,38(11):2789-2794.
[18]Linze N,Megret P,Wuilpart M.Development of an Intrusion Sensor based on a Polarization-OTDR System[J].IEEE Sensors Journal,2012,12(10):3005-3009.
[19]李建中.基于POTDR的分布式光纤传感技术及其应用[D].成都:电子科技大学,2008.
[20]Mardia K V.Measures of Multivariate Skewness and Kurtosis with Applications[J].Biometrika,1970,57(3):519-530.
[21]吴昊.浅议电力电缆故障定位技术的应用[J].华东科技(学术版),2016,(3):219.
[22]刘晓华,郭朋.电力电缆故障定位分析及预防[J].山东工业技术,2017,(8):171.
[23]Sneath J,Rajapakse A.Fault Detection and Interruption in an Earthed HVDC Grid Using ROCOV and Hybrid DC Breakers[C]//2015IEEE Power&Energy Society General Meeting.Denver,CO, USA:IEEE,2015:973-981.
[2]付柏侨.贵阳供电局配网生产管理系统解决方案研究[D].成都:西南交通大学,2016.
[3] So V C Y,Jiang J W,Cargill J A,et al.Automation of an Optical Time Domain Reflectometer to Measure Loss and Return Loss[J].Journal of Lightwave Technology,1990,8(7):1078-1083.
[4]赵宏振,戴承奇,祖正宁,等.基于OTDR的油气管道监测及定位方案应用[J].光通信技术,2015,39(5):60-62.
[5]顾胜坚,江友华.基于分布式光纤的电力电缆健康状态监测与可视化技术研究[J].仪表技术,2017,(1):1-4.
[6] Tong Y,Dong H,Wang Y,et al.Distributed Incomplete Polarization-OTDR based on Polarization Maintaining Fiber for Multi-Event Detection[J].Optics Communications,2015,357:41-44.
[7] Linze N,Tihon P,Verlinden O,et al.Development of a Multi-Point Polarization-based Vibration Sensor[J].Optics Express,2013,21(5):5606-5624.
[8] Linze N,Megret P,Wuilpart M.Development of an Intrusion Sensor based on a Polarization-OTDR System[J].IEEE Sensors Journal,2012,12(10):3005-3009.
[9] Rogers A J.Polarisation Optical Time Domain Reflectometry[J].Electronics Letters,980,16(13):489-490.
[10]Rogers A J.Polarization-Optical Time Domain Reflectometry:A Technique for the Measurement of Field Distributions[J].Applied Optics,1981,20(6):1060-1074.
[11]Rogers A J,Handerek V A.Frequency-Derived Distributed Optical-Fibre Sensing:Rayleigh Backscatter Analysis[J].Applied Optics,1992,31(21):4091-4095.
[12]Chen M,Zhang X,Wang F,et al.Development of Distributed Vibration Sensing System based on Polarization Optical Time Domain Reflectometry[J].Sensor Letters,2012,10(7):1534-1538.
[13]Wang X,Yan Z,Wang F,et al.SNR Enhanced Distributed Vibration Fiber Sensing System Employing Polarization OTDR and Ultraweak FBGs[J].IEEE Photonics Journal,2015,7(1):1-11.
[14]董贤子,吴重庆,付松年,等.基于P-OTDR分布式光纤传感中信息提取的研究[J].北京交通大学学报,2003,27(6):106-110.
[15]Zhang Z,Bao X.Distributed Optical Fiber Vibration Sensor based on Spectrum Analysis of PolarizationOTDR System[J].Optics Express,2008,16(14):10240-7.
[16]潘运.偏振光时域反射技术的同频振动测量研究[D].南京:南京大学,2017.
[17]李建中,饶云江,冉曾令.POTDR分布式光纤传感及其在安防监测中的应用[J].光子学报,2009,38(11):2789-2794.
[18]Linze N,Megret P,Wuilpart M.Development of an Intrusion Sensor based on a Polarization-OTDR System[J].IEEE Sensors Journal,2012,12(10):3005-3009.
[19]李建中.基于POTDR的分布式光纤传感技术及其应用[D].成都:电子科技大学,2008.
[20]Mardia K V.Measures of Multivariate Skewness and Kurtosis with Applications[J].Biometrika,1970,57(3):519-530.
[21]吴昊.浅议电力电缆故障定位技术的应用[J].华东科技(学术版),2016,(3):219.
[22]刘晓华,郭朋.电力电缆故障定位分析及预防[J].山东工业技术,2017,(8):171.
[23]Sneath J,Rajapakse A.Fault Detection and Interruption in an Earthed HVDC Grid Using ROCOV and Hybrid DC Breakers[C]//2015IEEE Power&Energy Society General Meeting.Denver,CO, USA:IEEE,2015:973-981.