光路结构参数对光学电流互感器运行稳定性的影响Influence of Optical Path Structure and Parameter on Operating Stability of Optical Current Transformer
于文斌;杨以涵;郭志忠;周建新;
摘要(Abstract):
基于法拉第磁光效应原理的光学电流互感器存在运行稳定性差的问题,其主要表现为直流工作光强的逐步衰竭。文章分析了闭合光路与直通光路光学电流传感头的结构特点,从光路耦合效率的角度讨论了光学电流传感头光程长度引起的光路耦合损耗对直流工作光强的影响,从理论上论证了直通光路结构具有更好的温度稳定性。文章最后介绍了直流光路结构的应用,提出采用直通光路的螺线管聚磁光路结构具有测量灵敏度高、抗外界电磁干扰能力强、结构简单稳定等优点,具有很好的实用化前景。
关键词(KeyWords): 光学电流互感器;法拉第磁光效应;运行稳定性;光程长度;耦合效率;螺线管聚磁光路结构
基金项目(Foundation):
作者(Author): 于文斌;杨以涵;郭志忠;周建新;
Email:
DOI:
参考文献(References):
- [1]IEC60044-8,Instrument transformer-part8:Electrical current transformers[S].2002.
- [2]GB/T20840.8—2007,互感器第8部分:电子式电流互感器[S].2007.
- [3]唐治国,许国斌,张发金.基于光电互感器的数字式母线保护[J].电力自动化设备,2007,27(5):118-121.Tang Zhiguo,Xu Guobin,Zhang Fajin.Digital bus protection based on optical transducer[J].Electric Power Automation Equipment,2007,27(5):118-121(in Chinese).
- [4]顾黄晶,张沛超.光学电流互感器对线路差动保护的影响[J].电力自动化设备,2007,27(5):61-64.Gu Huangjing,Zhang Peichao.Influence of optical current transducer on line differential protection[J].Electric Power Automation Equipment,2007,27(5):61-64(in Chinese).
- [5]及洪泉,张健,杨以涵,等.计及电子式电流互感器的差动保护性能分析[J].电网技术,2006,30(23):61-66.Ji Hongquan,Zhang Jian,Yang Yihan,et al.Comment on performance of differential protection taking into account electronic current transducers[J].Power System Technology,2006,30(23):61-66(in Chinese).
- [6]郭志忠.电子式电流互感器研究评述[J].继电器,2005,33(14):11-14.Guo Zhizhong.Comment on the research of electronic current transformers[J].Relay,2005,33(14):11-14(in Chinese).
- [7]李岩松.高精度自适应光学电流互感器及其稳定性研究[D].北京:华北电力大学,2004.
- [8]张国庆.光学电流互感器的理论与实用化研究[D].哈尔滨:哈尔滨工业大学,2005.
- [9]易本顺,刘延冰,阮芳.光学电流传感器现场运行性能分析[J].中国电机工程学报,1997,17(2):138-140.Yi Benshun,Liu Yanbing,Ruan Fang.Field performance analysis of optical current transducer[J].Proceedings of the CSEE,1997,17(2):138-140(in Chinese).
- [10]王政平,李庆波,刘晓瑜,等.线性双折射对光学玻璃电流传感器输出特性影响的理论分析[J].光学学报,2004,33(7):818-822.Wang Zhengping,Li Qingbo,Liu Xiaoyu,et al.Theoretical analysis of the effects of the linear birefringence upon the performance of a bulk glass optical current sensor[J].ACTA Photonica Sinica,2004,33(7):818-822(in Chinese).
- [11]王政平,李庆波,冯瑞颖,等.起偏器参量对光学电流传感器性能的影响[J].光学学报,2003,32(4):444-447.Wang Zhengping,Li Qingbo,Feng Ruiying,et al.Influences of the polarizer parameters on the performance of an optical current sensor[J].ACTA Photonica Sinica,2003,32(4):444-447(in Chinese).
- [12]王政平,康崇,张雪原,等.光学玻璃电流互感器研究进展[J].激光与光电子学进展,2004,41(11):41-45.Wang Zhengping,Kang Chong,Zhang Xueyuan,et al.Research and progress in bulk optical glass electronic current transformers[J].Laser&Optoelectronics Progress,2004,41(11):41-45(in Chinese).
- [13]孙伟民,王政平,黄宗军.反射相移对光学玻璃电流传感器抗电磁干扰能力的影响[J].光学学报,1998,18(9):1249-1254.Sun Weimin,Wang Zhengping,Huang Zongjun,et al.Influence of reflection-induced phase retardation upon the immunity to electromagnetic interference of bulk-glass optic-current sensors[J].ACTA Photonica Sinica,1998,18(9):1249-1254(in Chinese).
- [14]廖延彪.光纤光学[M].北京:清华大学出版社,2000.
- [15]Yamagata Y,Oshi T,Katsukawa H.Development of optical current transformers and application to fault location systems for substation[J].IEEE Trans on Power Delivery,1993,8(3):866-873.
- [16]Yoshida Y,Kawazoe S,Ibuki K.New fault locating system for air-insulated substations using optical current detector[J].IEEE Trans on Power Delivery,1992,7(4):1805-1812.
- [17]Pertersen A E.Portable optical ac-and proposed DC-current sensor for high voltage application[J].IEEE Trans on Power Delivery,1995,10(2):595-599.
- [18]Gongde L,Michael G K,Gordon R J,et al.Sensitivity improvement of an optical current sensor with enhanced faraday rotation[J].Journal of Lightwave Technology,1997,15(12):2246-2252.
- [19]李岩松,郭志忠,杨以涵,等.自适应光学电流互感器的基础理论研究[J].中国电机工程学报,2005,25(22):21-26.Li Yansong,Guo Zhizhong,Yang Yihan,et al.Research on the basic theory of adaptive optical current transducer[J].Proceedings of the CSEE,2005,25(22):21-26(in Chinese).