自适应光学电流互感器的信号处理方法  

Signal Processing Method for Adaptive Optical Current Transducer

作　　者：李岩松[1] 刘君[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市102206

出　　处：《电力系统自动化》2008年第10期53-56,共4页Automation of Electric Power Systems

基　　金：高等学校博士学科点专项科研基金资助项目(20030079007);华北电力大学校内博士学位教师基金资助~~

摘　　要：信号处理方法是自适应光学电流互感器(AOCT)的实用化关键技术之一。运用自适应光学电流传感技术,结合平方根Kalman自适应算法,提出了AOCT的信号处理方法,给出了信号处理系统结构和程序框图,并讨论了信号处理的相关问题。AOCT与信号处理系统构成的整套装置已应用于35kV线路的新型光纤纵差保护中。运行数据表明,该装置具有优良的暂态和稳态测量能力,可以确保线路纵差等保护可靠动作。Signal processing method is one of the key practical technologies of adaptive optical current transducer （AOCT）. By using the square root Kalman adaptive filtering algorithm, the signal processing method of AOCT is presented based on the adaptive optical current transforming technology. The structure of signal processing system and block diagram of the program are introduced and relative problems of signal processing are discussed. A complete set of equipment with AOCT and its signal processing system has been installed in the new type of optical differential protection for 35 kV transmission lines. The operation results indicate that the equipment has excellent measurement performance under steady and transient state, and the reliability of transmission line differential protection and other protections can be ensured.

关 键 词：自适应光学电流互感器 数字信号处理 KALMAN滤波 Faraday效应 

分 类 号：TM452[电气工程—电器]