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Measurement of Electromagnetic Interference Current in Cables Based on BPM Method
ID：37 View Protection：ATTENDEE Updated Time：2025-11-03 11:17:26 Hits：359 Oral Presentation

Start Time：2025-11-09 09:30（Asia/Shanghai）

Duration：15min

Session：S3 3. Power system and automation High voltage and insulation technology » S33.Power system and automation High voltage and insulation technology

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Abstract
 A redesigned stripline beam position monitor (BPM) is proposed  for directional current sensing in unshielded cables. The proposed design achieves broadband impedance matching (10 kHz–100 MHz) through multi-mode analysis (sum, dipole, quadrupole modes) and structural trade-offs, including an enlarged metal sleeve inner diameter (63 mm) for cable versatility. The electrode radius was optimized to 26.6 mm via 3D electromagnetic simulation, finally achieved global impedance matching across multiple operating modes. Directionality was validated through CST simulations and experimental tests with a current-carrying single wire, showing consistent upstream/downstream signal asymmetry over 10 kHz–100 MHz. Signal processing further enabled extraction of current position and relative amplitude. This work establishes a foundation for electromagnetic interference direction detection systems using BPM arrays.
 
Keywords
Beam Position Monitor, EMI, Impedance Match
Speaker
Xiansong Chen
Huazhong University of Science and Technology

Submission Author
贤松 陈 Huazhong University of Science and Technology
钰言 谢 Huazhong University of science and technology
永前 熊 Huazhong University of science and Technology
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Important Date

  • Conference Date

    Nov 07

    2025

    to

    Nov 09

    2025

  • Oct 30 2025

    Draft paper submission deadline

  • Nov 10 2025

    Registration deadline

Sponsored By
IEEE西南交通大学IAS学生分会
Organized By
西南交通大学电气工程学院
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
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