光学电流传感单元的性能研究与仿真分析平台的设计
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摘要
近年来,随着电网技术的不断发展,对电力系统的安全性要求也越来越高。光学电流互感器能够测量、监控电力系统的状态,保证电力系统的安全可靠运行。但是由于光学电流互感器的传感单元受到温度漂移、长期运行稳定性等问题的制约,目前还无法大规模的应用。现有的理论与实验研究大部分都是针对传感单元整体的,因此需要针对其具体模块进行深入讨论与分析,研究传感单元的各个组成部分在实际运行中受到的具体影响因素对其的影响,便于寻找提高其整体性能的方法,这也正是本文利用软件联合仿真搭建光学电流传感单元仿真分析平台的目的所在。
本文以琼斯矩阵为光学电流传感单元的数学模型基础,研究光学器件本身质量好坏、环境温度变化、相间干扰等实际影响因素对传感单元性能的影响,并利用MATLAB软件编辑传感单元的分析程序。基于传感单元的分布参数数学模型,借助Ansoft、Ansys有限元分析软件进行仿真,建立光学电流互感器传感单元处于不同情况下的磁场及温度场信息库。利用程序调用信息库中对应的不均匀磁场及温度场,做到仿真环境与传感单元实际受到的不均匀磁场及温度场分布情况相符。利用LabVIEW与MATLAB软件混合编程编辑了平台界面,实现了完整的光学电流传感单元仿真分析平台。
通过将仿真输出结果与已有理论分析结果进行对比,验证了仿真平台的有效性与正确性。将仿真平台作为分析工具针对磁场均匀度、温度场及不同干扰场对传感单元的性能影响进行初步分析,展示了仿真分析平台的功能,证明了其具有工程实际应用价值。
In recent years, with the continuous development of our power grid, the demands of the power system’s security is also higher and higher. The optical current transformer can measure and monitor the state of power system, to ensure the safety and reliable operation of the system. But due to the restriction of the temperature drift and long-term stable operation of the sensor unit, optical current transformer still can’t be used widely. The existing theoretical and experimental are almost to study the whole transformer, So we still need to do further discuss and analysis the specific module of optical current transformer’s sensor unit and study the influence of the specific factors, it is facilitate to looking for ways to improve its performance, it is also the aim of we realize the sensor unit simulation platform which used of hybrid simulation.
In this paper, we use the Jones matrix as the mathematical model, to realize the analysis program which has think about the device quality, the environmental temperature and the interference by the software of MATLAB. Using the distribution parameters mathematical model, with the element analysis software Ansoft and Ansys we have established the powerful database of magnetic field and temperature field in different conditions, then, we call the corresponding magnetic field and temperature field in the program, realize the simulation environment and the actual magnetic and temperature field of sensor unit are agreement. Finally, we editor platform interface by the LabVIEW software to make the platform’s operation more convenient.
Through the compare of simulation output and theoretical analysis results, we has proved the effectiveness and correctness of our simulation. Using this simulation platform as a analysis, preliminary analysis the influence of magnetic field uniformity, temperature field and different disturbance field. Demonstrating the function and application value of this paper’s simulation platform.
本文以琼斯矩阵为光学电流传感单元的数学模型基础,研究光学器件本身质量好坏、环境温度变化、相间干扰等实际影响因素对传感单元性能的影响,并利用MATLAB软件编辑传感单元的分析程序。基于传感单元的分布参数数学模型,借助Ansoft、Ansys有限元分析软件进行仿真,建立光学电流互感器传感单元处于不同情况下的磁场及温度场信息库。利用程序调用信息库中对应的不均匀磁场及温度场,做到仿真环境与传感单元实际受到的不均匀磁场及温度场分布情况相符。利用LabVIEW与MATLAB软件混合编程编辑了平台界面,实现了完整的光学电流传感单元仿真分析平台。
通过将仿真输出结果与已有理论分析结果进行对比,验证了仿真平台的有效性与正确性。将仿真平台作为分析工具针对磁场均匀度、温度场及不同干扰场对传感单元的性能影响进行初步分析,展示了仿真分析平台的功能,证明了其具有工程实际应用价值。
In recent years, with the continuous development of our power grid, the demands of the power system’s security is also higher and higher. The optical current transformer can measure and monitor the state of power system, to ensure the safety and reliable operation of the system. But due to the restriction of the temperature drift and long-term stable operation of the sensor unit, optical current transformer still can’t be used widely. The existing theoretical and experimental are almost to study the whole transformer, So we still need to do further discuss and analysis the specific module of optical current transformer’s sensor unit and study the influence of the specific factors, it is facilitate to looking for ways to improve its performance, it is also the aim of we realize the sensor unit simulation platform which used of hybrid simulation.
In this paper, we use the Jones matrix as the mathematical model, to realize the analysis program which has think about the device quality, the environmental temperature and the interference by the software of MATLAB. Using the distribution parameters mathematical model, with the element analysis software Ansoft and Ansys we have established the powerful database of magnetic field and temperature field in different conditions, then, we call the corresponding magnetic field and temperature field in the program, realize the simulation environment and the actual magnetic and temperature field of sensor unit are agreement. Finally, we editor platform interface by the LabVIEW software to make the platform’s operation more convenient.
Through the compare of simulation output and theoretical analysis results, we has proved the effectiveness and correctness of our simulation. Using this simulation platform as a analysis, preliminary analysis the influence of magnetic field uniformity, temperature field and different disturbance field. Demonstrating the function and application value of this paper’s simulation platform.
引文
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[2]罗毅.电力系统安全监控的理论及方法研究[D].武汉:华中科技大学博士学位论文,2004:1-5.
[3]张继辉,穆晓曦,崔亦斌.浅谈互感器及其在使用中应注意的若干问题[C] //2007第十二届全国可靠性物理学术讨论会论文集.四川:广东省电子学会,2007:233-237.
[4]刘必升.互感器的选择及使用[J].山西电子技术,2008(5):43-44.
[5] Liu Yunpeng. Optical Electric Current Transformer Error Measuring System Based on Virtual Instrument[D]. The Enghth International Conference on Electronic Measurement and Instruments. 2007, 3:278-282.
[6]张贵新,赵清姣,罗承沐.电子式互感器的现状与发展前景[J].电力设备·市场,2006,4(7):108-109.
[7] Wei Li, Yin Xianggen, Chen Deshu. The Study of Transient Performance for Electronic Current Transformer Sensor Based on Rogowski coil[C]// Universities Power Engineer Conference. 2006, 9:162-165.
[8] Didisyan Y, Hauser H, Nicolics J, and Fulmek P. Electrical Current Sensors Based on Transparent Magnets[J]. IEEE Transactions on Power Apparatus and Systems. 1998:977-980.
[9]张建超,刘晓波,张飞.电子式高压电力互感器的发展现状及在电力系统中的应用[J].高压电器,2009,45(4):106-110.
[10]李红斌,刘延冰,吴伯华.电子式互感器的使用现状及应用前景[J].电力设备·市场,2007,8(1):103-104.
[11]彭晟,付保军,赵雅囡.传统电流互感器存在的问题及解决办法[J].天津电力技术,2009(2):8-10.
[12]李静.电力系统中电子式互感器的研究[D].山东:山东科技大学硕士学位论文,2006:1-6.
[13] Guo Weina, Huang Wenjie. Optical Current Transformer Accuracy Problems and Solutions[C]//2010 Asia-Pacific Conference on Power Electronics and Design. 2010(19):47-50.
[14] Takahashi M, Sasaki K, Hirata Y and Nosaka N. Field Test of DC Optical CurrentTransformer for HVDC Link[J]. IEEE Transactions on Power Apparatus and Systems. 2010:1-5.
[15] Cao Lijuan. Application Comparison of Rogowski-type and optical-type Electronic Current Transformer[J]. IEEE Transactions on Power Apparatus and Systems. 2007:287-292.
[16]张建,及洪泉,郭志忠.光学电流互感器及其应用评述[J].高电压技术,2007,33(5):32-36.
[17]刘建丽.光学互感器在电力系统故障保护中的应用[J].工业科技,2008,37(6):38-39.
[18]邱毓昌.光学传感器在变电站的应用[J].供用电,1999,16(3):52-53.
[19]刘金玲,张婧.介绍数字化变电站中的电子式互感器[J].技术改进与创新,2010:25-27.
[20]娄凤伟.光学电流传感器的现状与发展[J].四川水力发电,2004(23):90-93.
[21] Didosyan S, Hauser H. Magneto-Optical Current Sensor by Domain Wall Motion in Orthoferrites[J]. IEEE Transactions on Instrument and Measurement. 2000:14-18.
[22]王政平,王锋,王晓忠.光学玻璃电流传感头温度特性分析[J].哈尔滨工程大学学报,2006,27(3):457-460.
[23] Fujimoto T, Shimizu M, Nakagawa H. Development of an Optical Current Transformer for Adjustable Speed Pumped Storage Systems[J]. IEEE Transactions on Instrument and Measurement.1997(12):45-50.
[24]平绍勋,于波,黄仁山.光电互感器的现状和发展[J].高电压技术,2003,31(29):21-23.
[25] Nuqui F, Zarghami M, Mendik M. The Impact of Optical Current and Voltage Sensors on Phasor Measurements and Applications[J]. IEEE Transactions on Instrument and Measurement. 2010:1-7.
[26] Kucuksari S, Karady G.. Experimental Comparison of Conventional and Optical Current Transformers[J]. IEEE Transactions on Power Delivery. 2010 :2455-2463.
[27] Kobayashi S, Horide A, Takagi I. Development and Field Test Evaluation of Optical Current and Voltage Transformers for Gas Insulated Switchgear[J]. IEEE Transactions on Power Apparatus and Systems. 1991:329-335.
[28] Wan Qifa, Guoxiong Ye, Lizi Xu. Development and Analyse of Electronic Transformers[C]//2010 China International Conference on Electricity Distribution. 2010:1-11.
[29] Liu Jun, Meng Lu, Ji Yaoyao. Research of Faraday Magneto-Optical Effect DC Optical Sensing Method Based on Modulation and Demodulation[J]. IEEE Transactions on Instrument and Measurement. 2010:1-5.
[30] Yamagata Y, Oshi T and Katsukawa H. Development of Optical Current Transformers and Application to Fault Location Systems for Substations[J]. IEEE Transactions on Power Delivery. 1993:866-873.
[31]尚勇,李洪杰,严璋.光学电流传感器研究的历史与现状[J].电力电容器,2000(1):16-22.
[32]张德赛,罗道军,彭剑.国内外光电式电流互感器研究现状[J].四川电力技术,2006:53-60.
[33] Li Kaicheng, Hu Weibing and Liu Jianfeng. Research on Digital Optical Fiber Current Transformer With CT Power Supply[J]. IEEE Transactions on Instrument and Measurement. 2008:1-2.
[34]陶邦胜.光学技术在智能电网中的应用[J].江苏电机工程,2010,29(5):82-84.
[35]刘晔,王采堂,苏彦民.电力系统适用光学电流互感器的研究新进展[J].电力系统自动化,2000:60-64.
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