自适应光学电流互感器微弱信号检测方法的研究与实现
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摘要
为了提高自适应光学电流互感器(AOCT)的长期运行稳定性,本文在AOCT的光学传感部分采用抗磁性材料的螺线管聚磁光学传感头,并缩短了磁光传感材料,在AOCT的信号处理部分设计了以DSP2812为基础的DPS2812Mv2信号处理系统,并利用所设计的信号处理系统实现了整周期累加平均的直流量分离法,同时在信号处理部分利用数字式锁定放大器实现了微弱信号检测的功能,从而使AOCT能够检测出淹没在强噪声中的微弱电流信号。最后通过虚拟仪器LabVIEW仿真软件对检测系统进行检验。根据检测结果可知,本论文所提出的方法能够准确地分离出AOCT光学传感部分输出信号中的基本直流量并能够精确地检测出交流电流信号的幅值。
In order to improve the Long-term operation stability of Adapative Optical Current Transducer(AOCT), this paper use the diamagnetic optical material on solenoid collecting magnetic optical sensor head and shorten the length of magneto-optical materials. The paper designed the DPS2812Mv2 signal processing system based on DPS2812 in the signal processing part of AOCT and acquired the DC characteristics by using an average of the whole cycle accumulation of the signal.The paper also realized the weak signal detection in severe noise current signal by using the digital locking amplifier so that AOCT detected the useful weak current signal from severe noise signal.The paper tested the detection system by using the simulation software Labview.According to the detection results,the method which this paper proposed can extract the dc characteristics accurately and detect the amplitude of AC signal.
In order to improve the Long-term operation stability of Adapative Optical Current Transducer(AOCT), this paper use the diamagnetic optical material on solenoid collecting magnetic optical sensor head and shorten the length of magneto-optical materials. The paper designed the DPS2812Mv2 signal processing system based on DPS2812 in the signal processing part of AOCT and acquired the DC characteristics by using an average of the whole cycle accumulation of the signal.The paper also realized the weak signal detection in severe noise current signal by using the digital locking amplifier so that AOCT detected the useful weak current signal from severe noise signal.The paper tested the detection system by using the simulation software Labview.According to the detection results,the method which this paper proposed can extract the dc characteristics accurately and detect the amplitude of AC signal.
引文
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[2]Ramboz, J. D., et al., The verification of Rogowski coil linearity from 200 A to greater than 100 kA using ratio methods, Instrumentation and Measurement Technology Conference, Proceedings of the 19th IEEE, Vol.1, 21-23 May 2002
[3]Takahashi, M., et al., Optical current sensor for DC measurement, Transmission and Distribution Conference and Exhibition 2002, Asia Pacific. IEEE/PES, Vol.1,6-10 Oct.2002
[4]高翔.数字化变电站应用技术.中国电力出版社,2008
[5]国家电网公司.Q/GDW XXX-2009.国家电网公司企业标准-智能变电站技术导则.2009
[6]王廷云,罗承沐,田玉鑫.电力系统中光电电流互感器研究.电力系统自动化,2000,24(11)：100-105
[7]吕砚山等.利用激光及法拉第效应测量电磁量的研究.仪器仪表学报,1993,14(1)： 39-44
[8]Emerging Technologies Working Group, Fiber Optics Sensors Working Group. Optical Current Transducers for Power Systems:a Review. IEEE Transactions on power delivery, October 1994,9(4): 1778-1788
[9]邸荣光,刘仕兵.光电式电流互感器技术的研究现状与发展.电力自动化设备,2006,26(8)：98-100
[10]李岩松.高精度自适应光学电流互感器及其稳定性研究.北京：华北电力大学博士论文,2004
[11]曲艳华.光学电流互感器在继电保护中的应用.华北电力大学硕士论文,2005
[12]S. Saito, Y. Fujii, K. Yokoyama, J. Hamsaki, Y. ohno, The Laser Current Transformer for EVH Power Transmission Lines, IEEE J. QE,1966, QE-2: 255-259
[13]S. Saito, Jhamasaki, Y.Fujii, K. Yokoyama, Y. ohno, Development of the Laser Current Transformer for Extrahigh-Voltage Power Transmission Lines, IEEE J. Quant, Electron.1967, QE-3:589-597
[14]A. J. Rogers, Optical Technique for Measurement of Current at High Voltage, Proc. IEE,120 (1973):261-167
[15]T. W. Cease, Driggans, Weikel, Optical Voltage And Current Sensors Used in a Revenue Metering System, IEEE Transaction on Power Delivery, 19916(4):1374-1379
[16]T. W. Cease, Judy G. Driggans, Scott J. Weikel. Optical voltage and current sensors used in a revenue metering system. IEEE Transactions on Power Delivery,1991,12(4):1422-1427
[17]T. D. Maffetone, T. M. McDlelland, 345kV Substation Optical Current Measurement System for Revenue Metering and Protective Relaying, IEEE Transactions on Power Delivery, Vol.6, No.4, October 1991:1430-1437
[18]Allen H. Rose, S. M. Etzel, Kent B. Rochford. Optical fiber current sensors in high electric field environments. Lightwave Technology,1999,17(6): 1042-1048
[19]Masao Takahashi, Hideki Noda, Kiyohisa Terai. Optical current transformer for gas insulated switchgear using silica optical fiber. IEEE Transactions on Power Delivery,1997,12(4):1422-1427.
[20]S.Kobayashi, A.Horide, I.Takagi, et al. Development and field test evaluation of optical current and voltage transformers for gas insulated switchgear. IEEE Transactions on Power Delivery,1992,7(1):815-821
[21]李红斌,刘延冰,张卫军等.用于110kV变电站的光学电流互感器.华中科技大学学报,1995,23(7)：6-10
[22]尹朝 赵一虓.国产全光纤电子式电流互感器迈向超高压.电气时代,2009,9(1)：9-14
[23]W. lain Madden, W. Craig Michie, Andrew Cruden, Temperature Compensation for Optical Current Sensors, Optical Engineering, Vol.38, No.10, October 1999:1699-1707
[24]H. Katsukawa, H. Ishikawa, H. Okajima, T. W. Cease, Development of An Optical Current Transducer with A Bulk Type Faraday Sensor for Metering, IEEE Transactions on Power Delivery, Vol.11, No.2, April 1996:702-707
[25]Sohail Hamid Zaidi, Ralph P Tatam, Faraday-effect Magnetometry: Compensation for the Temperature-Dependent Verdet Constant, Science Technology 5 (1994):1471-1479
[26]Xianyun Ma, Chengmu Luo, A method to Eliminate Birefringence of A Magneto-optic AC Current Transducer With Glass Ring Sensor Head, IEEE Transactions on Power Delivery, Vol.13, No.4, October 1998:1015-1019
[27]Nobuki Itoh, Hisashi Minemoto, Daisuke Ishiko, Satoshi Ishizuka, Small Optical Magnetic-Field Sensor That Uses Rare-Earth Iron Garnet Films Based on the Faraday Effect, Applied Optics, Vol.38, No.10, April 1999:2047-2052
[28]Pawel Niewczas, Andrew Cruden, W.Craig Michie, W.lain Madden, James R. McDonald, Ivan Andonovic, Vibration Compensation Technique for an Optical Current Transducer, Optical Engineering, Vol.38, No.10,1999,10
[29]张艳.光学电流互感器数字信号处理系统的研究.华中科技大学硕士论文,2004
[30]张德赛,罗道军,彭剑.国内外光电式电流互感器研究现状.四川电力技术,1999(2)：53-55,60
[31]郑小平,廖延彪.偏振调制光纤传感器长期稳定性研究现状.激光与红外,1999,29(6)：363-367
[32]苏立国,刘振宇,董小鹏等.应用保偏光纤的电流传感器远程检测系统.电力电子技术,2001,35(4)：48-50
[33]张新亮,刘德明,黄德修.具有温度和偏振态补偿功能的光纤电流传感器的研究.传感器技术,1998(10)：1-3,9
[34]李红斌,刘延冰,张卫军.光学电流传感器的研究进展.电工技术杂志,1997(1)：7-9
[35]王锋.光学电流互感器的温度特性分析.哈尔滨工程大学硕士论文,2005.
[36]娄凤伟.光学电流互感器的现状与发展.电工技术杂志,2002(6)：11-14.
[37]尚秋峰.光学电流互感器实用化方法的研究.华北电力大学博士论文,2004.
[38]R. Ulrich, A.Simon. Polarization Optics of Twisted Single-Mode Fibers. Applied Optics,1997(18):2241-2251
[39]A. H. Rose et al. Twisting and Annealing Optical Fiber for Current Sensors. Journal of Light Wave Technology,1996,14(11):2492-2498.
[40]李红斌,刘延冰.光学电流互感器温度补偿方法.仪表技术与传感器,2004(4)：32-33,39
[41]张国庆.光学电流互感器的理论与实用化研究.哈尔滨工业大学博士论文,2005
[42]易本顺.光学电流传感器特性及补偿方法研究.华中理工大学博士论文,1996
[43]盛珑,高桦,张国庆,郭志忠.光学电流互感器非线性问题的数值处理方法.电力自动化设备,1998,67(3)：13-14,42
[44]李岩松,郭志忠,杨以涵等.提高光学电流互感器运行稳定性的方法.电力系统自动化,2006,30(18)：61-65
[45]李岩松,张国庆,于文斌等.自适应光学电流互感器.中国电机工程学报,2003,23(11)：100-105
[46]叶嘉雄,常大定,陈汝均.光电系统与信号处理,科学出版社,1997
[47]高晋占.微弱信号检测.清华大学出版社,2004
[48]陈佳圭.微弱信号检测.中央广播电视大学出版社,1987
[49]刘丰,卢启柱,郑绳楦等.基于DSP的光纤电流互感器二次侧信号处理.现代电子技术,2003(3)：10-12
[50]Giallorenzi T. G, Buchro J. A, Dandridge A, et al. Optical fiber sensor technology. IEEE Quantum Electronics,1982,18 (4):626-665
[51]Fang X. A variable-loop Sagnac interferometer for distributed impact sensing. Lightwave Technology,1996,14(10):2250-2254
[52]吴爱华,胡志忠.基于Labview的微弱光电信号锁相检测技术.医疗设备信息,2005.12,20(12)：5-6,4
[53]刘智,张精慧.锁定放大器在激光烟雾衰减测试系统中的应用研究.长春光学机密学院学报,2000.9,23(3)：37-41
[54]赵士威.基于锁相放大技术的光纤氧传感器研究.武汉理工大学硕士论文,2003
[55]董磊,马维光,尹王保等.利用数字锁相放大器对甲烷气体进行谐波探测的实验研究.光谱学与光谱分析,2005.3,25(3)：473-476
[56]王艳菊,李东明,王玉田.CH4传感系统微弱光电信号处理电路的研究.自动化仪表,2006.10,27(10)：33-35,38
[57]张洁.用LED作光源的光纤甲烷气体传感检测系统设计.燕山大学硕士论文,2005
[58]Anders E. Petersen. Portable optical AC and proposed DC current sensor for high voltage applications. IEEE Trans. On Power Delivery,1995,10(2):595-599
[59]王廷云,罗承沐,段联,郑绳楦,杨志国.光纤电流传感器小波信号处理系统.清华大学学报(自然科学版),1999,39(9)：51-53
[60]张戈,周明光.浅谈虚拟仪器的构成方法及其特点.大众科技,2006,89(3)：74-75
[61]邓炎,王磊.LabVIEW7.1测试技术与仪器应用.机械工业出版社,2004
[2]Ramboz, J. D., et al., The verification of Rogowski coil linearity from 200 A to greater than 100 kA using ratio methods, Instrumentation and Measurement Technology Conference, Proceedings of the 19th IEEE, Vol.1, 21-23 May 2002
[3]Takahashi, M., et al., Optical current sensor for DC measurement, Transmission and Distribution Conference and Exhibition 2002, Asia Pacific. IEEE/PES, Vol.1,6-10 Oct.2002
[4]高翔.数字化变电站应用技术.中国电力出版社,2008
[5]国家电网公司.Q/GDW XXX-2009.国家电网公司企业标准-智能变电站技术导则.2009
[6]王廷云,罗承沐,田玉鑫.电力系统中光电电流互感器研究.电力系统自动化,2000,24(11)：100-105
[7]吕砚山等.利用激光及法拉第效应测量电磁量的研究.仪器仪表学报,1993,14(1)： 39-44
[8]Emerging Technologies Working Group, Fiber Optics Sensors Working Group. Optical Current Transducers for Power Systems:a Review. IEEE Transactions on power delivery, October 1994,9(4): 1778-1788
[9]邸荣光,刘仕兵.光电式电流互感器技术的研究现状与发展.电力自动化设备,2006,26(8)：98-100
[10]李岩松.高精度自适应光学电流互感器及其稳定性研究.北京：华北电力大学博士论文,2004
[11]曲艳华.光学电流互感器在继电保护中的应用.华北电力大学硕士论文,2005
[12]S. Saito, Y. Fujii, K. Yokoyama, J. Hamsaki, Y. ohno, The Laser Current Transformer for EVH Power Transmission Lines, IEEE J. QE,1966, QE-2: 255-259
[13]S. Saito, Jhamasaki, Y.Fujii, K. Yokoyama, Y. ohno, Development of the Laser Current Transformer for Extrahigh-Voltage Power Transmission Lines, IEEE J. Quant, Electron.1967, QE-3:589-597
[14]A. J. Rogers, Optical Technique for Measurement of Current at High Voltage, Proc. IEE,120 (1973):261-167
[15]T. W. Cease, Driggans, Weikel, Optical Voltage And Current Sensors Used in a Revenue Metering System, IEEE Transaction on Power Delivery, 19916(4):1374-1379
[16]T. W. Cease, Judy G. Driggans, Scott J. Weikel. Optical voltage and current sensors used in a revenue metering system. IEEE Transactions on Power Delivery,1991,12(4):1422-1427
[17]T. D. Maffetone, T. M. McDlelland, 345kV Substation Optical Current Measurement System for Revenue Metering and Protective Relaying, IEEE Transactions on Power Delivery, Vol.6, No.4, October 1991:1430-1437
[18]Allen H. Rose, S. M. Etzel, Kent B. Rochford. Optical fiber current sensors in high electric field environments. Lightwave Technology,1999,17(6): 1042-1048
[19]Masao Takahashi, Hideki Noda, Kiyohisa Terai. Optical current transformer for gas insulated switchgear using silica optical fiber. IEEE Transactions on Power Delivery,1997,12(4):1422-1427.
[20]S.Kobayashi, A.Horide, I.Takagi, et al. Development and field test evaluation of optical current and voltage transformers for gas insulated switchgear. IEEE Transactions on Power Delivery,1992,7(1):815-821
[21]李红斌,刘延冰,张卫军等.用于110kV变电站的光学电流互感器.华中科技大学学报,1995,23(7)：6-10
[22]尹朝 赵一虓.国产全光纤电子式电流互感器迈向超高压.电气时代,2009,9(1)：9-14
[23]W. lain Madden, W. Craig Michie, Andrew Cruden, Temperature Compensation for Optical Current Sensors, Optical Engineering, Vol.38, No.10, October 1999:1699-1707
[24]H. Katsukawa, H. Ishikawa, H. Okajima, T. W. Cease, Development of An Optical Current Transducer with A Bulk Type Faraday Sensor for Metering, IEEE Transactions on Power Delivery, Vol.11, No.2, April 1996:702-707
[25]Sohail Hamid Zaidi, Ralph P Tatam, Faraday-effect Magnetometry: Compensation for the Temperature-Dependent Verdet Constant, Science Technology 5 (1994):1471-1479
[26]Xianyun Ma, Chengmu Luo, A method to Eliminate Birefringence of A Magneto-optic AC Current Transducer With Glass Ring Sensor Head, IEEE Transactions on Power Delivery, Vol.13, No.4, October 1998:1015-1019
[27]Nobuki Itoh, Hisashi Minemoto, Daisuke Ishiko, Satoshi Ishizuka, Small Optical Magnetic-Field Sensor That Uses Rare-Earth Iron Garnet Films Based on the Faraday Effect, Applied Optics, Vol.38, No.10, April 1999:2047-2052
[28]Pawel Niewczas, Andrew Cruden, W.Craig Michie, W.lain Madden, James R. McDonald, Ivan Andonovic, Vibration Compensation Technique for an Optical Current Transducer, Optical Engineering, Vol.38, No.10,1999,10
[29]张艳.光学电流互感器数字信号处理系统的研究.华中科技大学硕士论文,2004
[30]张德赛,罗道军,彭剑.国内外光电式电流互感器研究现状.四川电力技术,1999(2)：53-55,60
[31]郑小平,廖延彪.偏振调制光纤传感器长期稳定性研究现状.激光与红外,1999,29(6)：363-367
[32]苏立国,刘振宇,董小鹏等.应用保偏光纤的电流传感器远程检测系统.电力电子技术,2001,35(4)：48-50
[33]张新亮,刘德明,黄德修.具有温度和偏振态补偿功能的光纤电流传感器的研究.传感器技术,1998(10)：1-3,9
[34]李红斌,刘延冰,张卫军.光学电流传感器的研究进展.电工技术杂志,1997(1)：7-9
[35]王锋.光学电流互感器的温度特性分析.哈尔滨工程大学硕士论文,2005.
[36]娄凤伟.光学电流互感器的现状与发展.电工技术杂志,2002(6)：11-14.
[37]尚秋峰.光学电流互感器实用化方法的研究.华北电力大学博士论文,2004.
[38]R. Ulrich, A.Simon. Polarization Optics of Twisted Single-Mode Fibers. Applied Optics,1997(18):2241-2251
[39]A. H. Rose et al. Twisting and Annealing Optical Fiber for Current Sensors. Journal of Light Wave Technology,1996,14(11):2492-2498.
[40]李红斌,刘延冰.光学电流互感器温度补偿方法.仪表技术与传感器,2004(4)：32-33,39
[41]张国庆.光学电流互感器的理论与实用化研究.哈尔滨工业大学博士论文,2005
[42]易本顺.光学电流传感器特性及补偿方法研究.华中理工大学博士论文,1996
[43]盛珑,高桦,张国庆,郭志忠.光学电流互感器非线性问题的数值处理方法.电力自动化设备,1998,67(3)：13-14,42
[44]李岩松,郭志忠,杨以涵等.提高光学电流互感器运行稳定性的方法.电力系统自动化,2006,30(18)：61-65
[45]李岩松,张国庆,于文斌等.自适应光学电流互感器.中国电机工程学报,2003,23(11)：100-105
[46]叶嘉雄,常大定,陈汝均.光电系统与信号处理,科学出版社,1997
[47]高晋占.微弱信号检测.清华大学出版社,2004
[48]陈佳圭.微弱信号检测.中央广播电视大学出版社,1987
[49]刘丰,卢启柱,郑绳楦等.基于DSP的光纤电流互感器二次侧信号处理.现代电子技术,2003(3)：10-12
[50]Giallorenzi T. G, Buchro J. A, Dandridge A, et al. Optical fiber sensor technology. IEEE Quantum Electronics,1982,18 (4):626-665
[51]Fang X. A variable-loop Sagnac interferometer for distributed impact sensing. Lightwave Technology,1996,14(10):2250-2254
[52]吴爱华,胡志忠.基于Labview的微弱光电信号锁相检测技术.医疗设备信息,2005.12,20(12)：5-6,4
[53]刘智,张精慧.锁定放大器在激光烟雾衰减测试系统中的应用研究.长春光学机密学院学报,2000.9,23(3)：37-41
[54]赵士威.基于锁相放大技术的光纤氧传感器研究.武汉理工大学硕士论文,2003
[55]董磊,马维光,尹王保等.利用数字锁相放大器对甲烷气体进行谐波探测的实验研究.光谱学与光谱分析,2005.3,25(3)：473-476
[56]王艳菊,李东明,王玉田.CH4传感系统微弱光电信号处理电路的研究.自动化仪表,2006.10,27(10)：33-35,38
[57]张洁.用LED作光源的光纤甲烷气体传感检测系统设计.燕山大学硕士论文,2005
[58]Anders E. Petersen. Portable optical AC and proposed DC current sensor for high voltage applications. IEEE Trans. On Power Delivery,1995,10(2):595-599
[59]王廷云,罗承沐,段联,郑绳楦,杨志国.光纤电流传感器小波信号处理系统.清华大学学报(自然科学版),1999,39(9)：51-53
[60]张戈,周明光.浅谈虚拟仪器的构成方法及其特点.大众科技,2006,89(3)：74-75
[61]邓炎,王磊.LabVIEW7.1测试技术与仪器应用.机械工业出版社,2004