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Research on Physical Simulation Method for Broadband Impedance of Power Cables Based on LC Cascaded Circuit
ID：133 View Protection：ATTENDEE Updated Time：2025-11-03 11:45:52 Hits：402 Oral Presentation

Start Time：2025-11-09 11:20（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
宽带阻抗谱技术广泛用于电力电缆缺陷的诊断。然而，由于电压等级多、距离远、成本高，构建现实的电缆测试平台具有挑战性。这导致人员实践培训不足，测试仪器缺乏校准标准。提出了一种基于LC级联电路的电缆宽带阻抗物理仿真方法：按照DL/T 838和GB/T 3956标准，计算了10kV至500kV电缆（包括主体、接头和端子）单位长度的分布参数。通过分立的LC单元和级联，再现了长距离电缆的宽带阻抗。以500kV/50km交联聚乙烯电缆为例，193个LC单元（L=38.681μH，C=40.296nF）可以模拟10kHz至400kHz频段，等效带宽为1.466kHz。实际模拟设备已经过测试并证明是可行的。通过该方法建立的标准化实验室平台支持人才培养和仪器校准，解决运维中的核心瓶颈。
Keywords
Cascade Circuit,Broadband Impedance Simulation,Distributed Parameters,Instrument Calibration
Speaker
Junhan Wu
Sichuan University

Submission Author
Junhan Wu Sichuan University
Yefei Xu Sichuan University
Xiang Ren State Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute
Jilong Peng Sichuan University
jianjun yuan Huazhong University of Science and Technology
Haoran Tian Sichuan University
Xueming Zhou Ltd.；Electric Power Research Institute State Grid Hubei Electric Power Co.
Enjia Tian Sichuan University
Kai Zhou Sichuan University
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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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