基于磁阻效应的干式空心电抗器匝间短路磁场检测研究  

Research on Magnetic Field Detection of Inter⁃turn Short Circuit of Dry⁃type Air⁃core Reactor Based on Reluctance Effect

作　　者：李威 潘志敏 戴昀翔 翟雨佳 邓维 毛学锋 岳宇宾 LI Wei;PAN Zhimin;DAI Yunxiang;ZHAI Yujia;DENG Wei;MAO Xuefeng;YUE Yubin(State Grid Hunan Extra High Voltage Substation Company,Changsha 410009,China;Substation intelligent Operation and Inspection Laboratory of State Grid Hunan Electric Power Co.,Ltd.,Changsha 410009,China;School of Electrical and Information Engineering,Hunan University,Changsha 410082,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;Beijing East Force Superconducting Technology Co.,Ltd.,Beijing 100085,China)

机构地区：[1]国网湖南省超高压变电公司,长沙410009 [2]变电智能运检国网湖南省电力有限公司实验室,长沙410009 [3]湖南大学电气与信息工程学院,长沙410082 [4]中国科学院电工研究所,北京100190 [5]北京原力辰超导技术有限公司,北京100085

出　　处：《电力电容器与无功补偿》2024年第3期36-44,共9页Power Capacitor & Reactive Power Compensation

基　　金：国家自然科学基金面上项目(52177019);国家自然科学基金青年项目(51907060);国网湖南省电力有限公司科技项目(5216A321N00D);中国科学技术协会青年人才托举计划(2021QNRC001);湖南省自然科学基金优秀青年项目(2021JJ20013);湖南省创新平台与人才计划-湖湘青年英才(2021RC3058)。

摘　　要：针对干式空心电抗器匝间短路故障所产生的磁场变化,本文通过理论研究、建模仿真与样机试验相结合的方式,研究基于磁阻效应的干式空心电抗器匝间短路磁场检测方案。仿真过程中建立了电抗器匝间短路的有限元模型,完成了不同位置处以及不同故障程度的磁场变化量的计算。基于仿真结果,确定了磁场的测量位置,并应用磁阻效应传感器开展了电抗器匝间短路磁场测量试验。试验结果表明:由于测量过程中不与电抗器接触,磁阻效应传感器应用时并不影响电抗器的正常运行;其次,磁阻效应传感器能够有效反映出电抗器故障时磁场的变化情况,验证了磁阻效应传感器测量干式空心电抗器匝间短路磁场的可行性。Aiming at the magnetic field change due to the inter⁃turn short⁃circuit of dry⁃type air core reactor,the inter⁃turn short circuit magnetic field detection scheme of dry⁃type air core reactor based on reluctance effectis analyzedthrough the combination of theoretical research,modeling and simulation as well as prototype test.In the simulation process,the finite element model of inter⁃turn short circuit of reactor is set up,and the calculation of magnetic field change at different positions and different fault degrees is completed.Based on the simulation results,the measurement position of the magnetic field is determined,and the magnetic field measurement test of the inter⁃turn short circuit of the reactor is performed by using the reluctance effect sensor.The test results show that the reluctance effect sensor in application does not affect the normal operation of reactor because it is not in contact with reactor in the measurement process;Secondly,the reluctance effect sensor can effectively reflect the magnetic field change in case of fault of the reactor,and the feasibility of the reluctance effect sensor to measure the inter⁃turn short circuit magnetic field of dry⁃type air core reactor is verified.

关 键 词：干式空心电抗器 匝间短路 磁阻效应 磁场 

分 类 号：TM47[电气工程—电器]