电流互感器中的相位补偿技术  

The Phase Compenstaion Technique in Electric Current Transducer

作　　者：邸志刚[1] 贾春荣[1] 

机构地区：[1]河北理工大学信息学院,063009

出　　处：《电气应用》2007年第10期36-39,共4页Electrotechnical Application

基　　金：河北省科技攻关计划项目(062035161D-1);河北省教育厅自然科学基金项目(2006427);河北理工大学研究基金(Z200724)。

摘　　要：在电力系统中,电子式电流互感器已被广泛应用于电流测量,为了解决精确测量小电流(小于1000A)这一国际公认的难题,设计一种新型的电子式电流互感器。针对新型电流互感器传感头的特点,对传感头部分各环节所引入的相位差进行分析研究,根据传感头分析结果设计出一种实用的相位补偿电路,并给出其仿真结果及试验结果。结果表明其精度完全能达到国标0·2级标准。In power system, the electric current transducer has been used to measure current widely. In order to solve the international recognized difficulty, which is measuring small current （which is less than 1000A） accurately, a new kind of electric current transducer was designed. According to the sensor＇ s characteristic of this transducer, the phase error brought by every taches was analysed. Then according the analysis results, a practicable phase compensation circuit was presented. Besides, the imitation and examination results were supplied. And the results indicated that the precision could meet the criterion of 0.2 level.

关 键 词：电流互感器 ROGOWSKI线圈 相位差 

分 类 号：TM452[电气工程—电器]