Transient induced response on cables by lightning electromagnetic pulse with different experimental conditions

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Electric Power Systems Research Pub Date : 2024-10-10 DOI:10.1016/j.epsr.2024.111031

Chakhung Yeung , Jianguo Wang , Mi Zhou , Jinxin Cao , Yuxuan Ding , Li Cai , Yadong Fan , Quan Zhou , Jianping Wang , Weihan Zhao

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Abstract

The coupling of lightning electromagnetic pulse (LEMP) on cables can generate disruptive surge current and voltage, which may cause damage to devices or systems connected with cables. In this paper, a double toroidal magnetic field, through injection of an 8/20 μs lightning current into a double toroidal coil, is generated to induce indirect effects on nine communication/electrical cables. The impacts of different types and shielding methods of communication cables on induced surge current are evaluated, and the results show that twisted-pair cables with shielding layer have the best shielding effectiveness, with the ability to absorb more energy on the communication cables from LEMP. In addition, the study's findings demonstrate that the induction properties of cables are independent of the number of cores, but related to the shielding layer of cables. Meanwhile, simulation analysis in CST Studio Suite is carried out here, and results are basically similar to experimental results, with the difference attributed to the ignorance of some losses in the simulation environment. Finally, the magnetic field strength at each point of the LEMP is simulated, with some engineering proposals for the actual and simulated experiments.

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不同实验条件下雷电电磁脉冲对电缆的瞬态感应响应

雷电电磁脉冲（LEMP）在电缆上的耦合会产生破坏性的浪涌电流和电压，可能会对与电缆连接的设备或系统造成损坏。本文通过向双环形线圈注入 8/20 μs 的雷电流，产生双环形磁场，从而对九条通信/电力电缆产生间接影响。研究评估了不同类型和屏蔽方式的通信电缆对感应浪涌电流的影响，结果表明，带屏蔽层的双绞线电缆的屏蔽效果最好，能够吸收更多雷电冲击波对通信电缆的能量。此外，研究结果表明，电缆的感应特性与芯数无关，但与电缆的屏蔽层有关。同时，本文在 CST Studio Suite 中进行了仿真分析，结果与实验结果基本相似，不同之处在于仿真环境中忽略了一些损耗。最后，模拟了 LEMP 各点的磁场强度，并针对实际和模拟实验提出了一些工程建议。

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.