Time-Domain Modeling of Field-to-Wire Coupling in Obliquely Oriented Multiwire Cables With Junctions Using JEMS-FDTD

Meng, Xuesong; Bao, Xianfeng; Zheng, Yu-Teng; Liu, Qiang; Mittra, R.; Zhou, Haijing

doi:10.1109/temc.2020.2968076

Cited by 8 publications

(2 citation statements)

References 21 publications

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“…Therefore, studying the coupling problem of space electromagnetic fields acting on the branched lines is significant for the electromagnetic safety evaluations of the electronic and electric systems. Some field-line coupling methods have been proposed to deal with the coupling problem of the TLs efficiently, such as Baum-Liu-Tesche (BLT) equation [1][2][3][4], FDTD-SPICE method [5][6][7][8][9], and FDTD-TL method [10][11][12][13]. The common advantage of these methods is that they can avoid direct mesh division of the fine structures of TLs.…”

Section: Introductionmentioning

confidence: 99%

Time Domain Modeling Method for the Coupling Analysis of Branched Lines Excited by Ambient Wave

Ye,

Xia,

et al. 2023

PIER M

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An efficient time domain hybrid method, consisting of the finite-difference time-domain (FDTD) method, Norton's theorem, transmission line (TL) equations, and some interpolation techniques, is presented to realize the fast coupling simulation of branched lines (BLs) radiated by ambient wave. Firstly, the branched lines are decomposed into multiple independent multi-conductor transmission lines (MTLs) according to the branched nodes. Then the TL equations with interpolation techniques are employed to build the coupling model of each MTL. The transient responses on these MTLs are solved by the FDTD method, which are employed to extract the Norton circuits of these MTLs acting on the branched nodes according to the Norton's theorem. Finally, the correlation matrix of the voltages and currents at the ports of the branched nodes is derived and solved. Meanwhile, these voltages are fed back to the corresponding MTLs as boundaries to realize the interference signal transmission among the BLs. Numerical examples about the coupling of branched lines contributed by five wires in free space and complex environment are simulated and compared with that of traditional FDTD to verify the correctness and efficiency of this proposed method.

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Section: Introductionmentioning

confidence: 99%

Time Domain Modeling Method for the Coupling Analysis of Branched Lines Excited by Ambient Wave

Ye,

Xia,

et al. 2023

PIER M

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“…Thus, there is great awareness of the safety issues concerning this situation. Some recent developments [13,14] have also highlighted the importance of the lightning inductive coupling characteristics of parallel cables.…”

Section: Introductionmentioning

confidence: 99%

Lightning inductive coupling characteristics of parallel cables: Computation and measurement validation

Zhou

Zhao

Zheng

et al. 2022

IET Science Measure & Tech

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A simulation model composed of an interfering cable and a disturbed cable is established for studying the lightning inductive characteristics between parallel cables. Effects of the horizontal distance between cables (5-40 cm), their height difference (−6-32 cm), as well as the length of disturbed cable (1-100 m) are investigated for the cable induced voltage, which is measured at the resistive load connected between one terminal of the disturbed cable and the ground, when various lightning surge currents (8/20 μs, 5/320 μs, and 0.5 μs/100 kHz) are delivered into the interfering cable. Our findings show that an increase of horizontal distance between cables can give rise to an exponential decrease of the cable induced voltage, and that there exist linear correlations between either the height difference of two cables or the length of disturbed cable and the cable induced voltage, which reaches maximum when the cables are located at the same height and of equal length. Verification experiments for the effect of horizontal distance have also been made, and, in general, they all show a reasonable agreement with the simulations. A detailed theoretical explanation of obtained findings is provided as well.

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Affection of shielding methods on the characteristics for cable coupled to lightning impulse magnetic field

Yeung,

Wang,

Zhou

et al. 2024

Electric Power Systems Research

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Time-Domain Modeling of Field-to-Wire Coupling in Obliquely Oriented Multiwire Cables With Junctions Using JEMS-FDTD

Cited by 8 publications

References 21 publications

Time Domain Modeling Method for the Coupling Analysis of Branched Lines Excited by Ambient Wave

Time Domain Modeling Method for the Coupling Analysis of Branched Lines Excited by Ambient Wave

Lightning inductive coupling characteristics of parallel cables: Computation and measurement validation

Affection of shielding methods on the characteristics for cable coupled to lightning impulse magnetic field

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