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Research on High-frequency Current Tunnel Magnetic Resistance Sensing Strategy for Distribution Line Conductors Considering Skin Effect Disturbance
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Shengwei WANG1, Yufeng JIANG  Student Member, CPSS2, Yixi WANG1, Yuxuan YE1, Yinfeng DU  Student Member, CPSS2
Journal of Power Supply | 2026, 24(7) : 358 - 368
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Journal of Power Supply | 2026, 24(7): 358-368
• Passive Devices •
Research on High-frequency Current Tunnel Magnetic Resistance Sensing Strategy for Distribution Line Conductors Considering Skin Effect Disturbance
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Shengwei WANG1, Yufeng JIANG  Student Member, CPSS2, Yixi WANG1, Yuxuan YE1, Yinfeng DU  Student Member, CPSS2
Affiliations
  • 1.Hubei Electric Power Information and Communication Company, Wuhan 430048, China
  • 2.School of Electrical and Automation, Wuhan University, Wuhan 430072, China
Published: 2026-07-30 doi: 10.13234/j.issn.2095-2805.2026.7.358
Outline
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With the widespread random access of distributed resources in the new power system, precise measurement of bus current under complex operating conditions has brought new challenges. Tunnel magnetoresistance (TMR) sensors, as the latest generation of magnetoresistance sensors, integrate the advantages of high sensitivity, low power consumption, and small size of traditional magnetic sensors. They have a wide range of applications in magnetic fields detection, current detection, magnetic memory and other fields. Due to the skin effect of bus current at high frequencies, the current is concentrated in the “skin” part of the conductor, and the surrounding magnetic field exhibits nonlinear characteristics that affect the measurement of the sensor. An optimization method for arranging the position and quantity of tunnel magnetoresistance chips around the distribution bus is proposed, based on the physical characteristics of tunnel reluctance sensors and the disturbance law of skin effect. The corresponding sensor structure is designed to reduce the influence of bus skin effect and stray magnetic field on sensor measurement accuracy.

High-frequency current  /  frequency characteristic  /  skin effect  /  tunneling magnetoresistance (TMR)
王晟玮, 姜雨枫中国电源学会学生会员, 王逸兮, 叶宇轩, 杜银锋中国电源学会学生会员. 计及趋肤效应扰动的配电母线高频电流隧道磁阻传感策略研究. 电源学报, 2026 , 24 (7) : 358 -368 . DOI: 10.13234/j.issn.2095-2805.2026.7.358
Shengwei WANG, Yufeng JIANG, Yixi WANG, Yuxuan YE, Yinfeng DU. Research on High-frequency Current Tunnel Magnetic Resistance Sensing Strategy for Distribution Line Conductors Considering Skin Effect Disturbance[J]. Journal of Power Supply, 2026 , 24 (7) : 358 -368 . DOI: 10.13234/j.issn.2095-2805.2026.7.358
Funding
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  • Hubei Provincial Natural Science Foundation(2024AFB745)
  • Hubei Electric Power Information and Communication Company Technology Project(SGHBXTO0SJJS2310071)
Appendix
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Year 2026 volume 24 Issue 7
35
6
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.7.358
  • Receive Date：2024-08-05
  • Online Date：2026-10-29
  • Published：2026-07-30
Article Data
Affiliations
History
  • Received：2024-08-05
  • Revised：2024-10-14
  • Accepted：2024-11-01
Funding
Hubei Provincial Natural Science Foundation(2024AFB745)
Hubei Electric Power Information and Communication Company Technology Project(SGHBXTO0SJJS2310071)
Affiliations
    1.Hubei Electric Power Information and Communication Company, Wuhan 430048, China
    2.School of Electrical and Automation, Wuhan University, Wuhan 430072, China
References
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2026.7.358
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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