基于GMM-FBG的电流互感器优化设计

打开文本图片集

DOI：10.16652/j.issn.1004-373x.2026.06.001引用格式：，等.基于GMM-FBG的电流互感器优化设计[J].现代电子技术，2026，49（6）：1-6.

关键词：GMM-FBG；电流互感器；磁场均匀度；驱动线圈；传感磁路；有限元法；工频电流中图分类号：TN304.7-34；TM452 文献标识码：A 文章编号：1004-373X（2026）06-0001-06

Design of current transformer optimization based on GMM-FBG

DIZhigang，CHENZhipeng，JIAChunrong，ZHANGCongzhe （NorthChinaUniversityofScienceand Technology，TangshanO6321O，China）

Abstract：Thegiantmagnetostrictivematerial-fiberbragg grating（GMM-FBG）currnttransformerhasgarneredsignificant atentioninrecentyearsduetoitsadvantagesofhighprecision，compactsize，andresistancetomagneticsaturation.The measurement essnceof this transformerisamulti-physicalquantitycouplingtransmisionmeasurement processinvolvingmagnetic field，strain，andoptics.Therefore，theesignof thesensingmagneticcircuitcandirectlyafectitsmeasurementaccuracyOn thisbasis，aGMM-FBGcurrenttransformerbasedonuniformmagneticfielddistributioninthesensing magneticcircuit is proposed.Byoptimizingthedesignofkeycomponentssuchasthedrivingcoil，biasmagneticfield，andmagneticconducting loop，andusingtheuniformityoftheaxialmagneticfieldintensityinsidethedrivingcoilastheevaluationcriteron，asesing magneticcircuit withanaxial magneticfield intensityuniformityof96.O3%isobtained.Thepowerfrequencycurrentinthe range of O～6 Ais measured，with a measurement error of 0.163% ，which can meet the national standard accuracy requirement of classO.2 forcurrnt transformers.Theresultsshowthatthisschemecanrealize accurate measurement ofsmallpower frequency current，effectively improve the measurement accuracy，and has important engineering application value.

Keywords：GMM-FBG；curenttransformer;magneticfielduniformity;drivecoil;sensing magneticcircuit;finiteelement analysis;power frequency current

0 引言

随着国家经济的快速发展，风力发电和太阳能发电技术大规模应用，电力系统的安全稳定性面临诸多挑战。（剩余7521字）