自适应光学电流互感器与保护一体化运行研究  

Research on Whole Operating of Adaptive Optical Current Transducer and Protection

作　　者：李岩松[1] 刘君[1] 杨以涵[1] 于文斌[1] 及洪泉[1] 谢晓梅[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市昌平区102206

出　　处：《中国电机工程学报》2007年第22期57-62,共6页Proceedings of the CSEE

基　　金：国家自然科学基金(50347023);高等学校博士学科点专项科研基金(20030079007)~~

摘　　要：电磁式CT的磁饱和问题一直是影响继电保护正确动作的主要原因之一,只有应用新型的无磁饱和互感器以及相应的保护系统才能从根本上解决这些问题,为此,该文在完善了新型自适应光学电流互感器(AOCT)理论体系基础上,研制了实用化的AOCT,将AOCT与新型线路差动保护构成的一体化系统应用于河北省保定供电公司的一条35kV输电线路上运行。运行结果表明,AOCT具有优良的测量性能,能够为保护提供高保真的测量数据;整套一体化系统当发生多次区外故障时均可靠不动,在一次区内故障时正确动作,满足了现场实际运行的要求。Magnetism saturation of traditional current transformer is one of the main reason for relay wrong operation. It is applying new transducer with no saturation and its prtoection that can slove these problems thoroughly. The new practical adaptive optical current transducer （AOCT） is manufactured, on the basis of perfecting the theory system of AOCT, and the opterating system of AOCT and its transmission line differentional protection is applied in the 35kV transmission line in BaoDing city HeBei province. The operating results indicate that AOCT take on the excellent measurement performance and can provide the real measure- ment datum of current for its protection; when fault out of protecting area occuring the opterating system of AOCT and its protection do not act reliably, by contrast when fault in protecting area occuring do act reliably; therefore the system can meet the need of operation in the substation.

关 键 词：光学电流互感器 继电保护 Faraday效应 

分 类 号：TM77[电气工程—电力系统及自动化]