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基于磁阻效应的干式空心电抗器匝间短路磁场检测研究

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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.
Research on Magnetic Field Detection of Inter-turn Short Circuit of Dry-type Air-core Reactor Based on Reluctance Effect
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 effect is analyzed through 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.

dry-type air-core reactorinter-turn short circuitreluctance effectmagnetic field

李威、潘志敏、戴昀翔、翟雨佳、邓维、毛学锋、岳宇宾

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国网湖南省超高压变电公司,长沙 410009

变电智能运检国网湖南省电力有限公司实验室,长沙 410009

湖南大学电气与信息工程学院,长沙 410082

中国科学院电工研究所,北京 100190

北京原力辰超导技术有限公司,北京 100085

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干式空心电抗器 匝间短路 磁阻效应 磁场

国家自然科学基金面上项目国家电网湖南省电力公司科技项目中国科协青年人才托举计划湖南省自然科学基金优秀青年基金湖南省创新平台与人才计划湖湘青年英才项目国家自然科学基金青年基金

521770195216A321N00D2021QNRC0012021JJ200132021RC305851907060

2024

10.14044/j.1674-1757.pcrpc.2024.03.005

电力电容器与无功补偿
西安电力电容器研究所

电力电容器与无功补偿

影响因子：0.99
ISSN：1674-1757
年,卷(期)：2024.45(3)
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