电子式电流互感器传感头的相位差研究  

Phase Error Research of Electronic Current Transformer's Sensor

作　　者：邸志刚[1] 张庆凌[2] 贾春荣[1] 侯国强[1] 金建国[1] 

机构地区：[1]河北理工大学信息学院,河北唐山063009 [2]河北理工大学科研处,河北唐山063009

出　　处：《高压电器》2007年第5期346-347,353,共3页High Voltage Apparatus

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：为了降低传感头的相位差,从传感元件Rogowski线圈及后续处理电路的特点出发,对线圈和后续电路所产生的相位差进行分析计算,在此基础上设计合理的相位补偿电路,并给出试验结果。结果表明,相位调理电路完全能够补偿传感头所产生的相位差,从而使电流互感器的精度达到国标0.2级标准。Solving sensor＇s phase difference is essential for improving the precision of electronic current transformer. In order to reduce the sensor＇s phase difference, according to the characteristic of Rogowski coil and subsequent disposal circuit, this paper analyzed and calculated the phase difference of sensor. Then, reasonable circuit compensating the phase difference was designed. At last the test result was presented. The result indicates that the phase compensation circuit could compensate entirely the phase difference induced by sensor. So as to, the precision of current transformer could be improved to 0.2 level.

关 键 词：电流互感器 传感头 ROGOWSKI线圈 相位补偿 

分 类 号：TM452[电气工程—电器]