A TLM-based Surge Calculation Considering Lumped-Circuit Elements

S. Yuda, N. Okazima, Y. Baba, N. Nagaoka, and A. Ametani (Japan)


Transmission line modeling (TLM) method, finite difference time domain (FDTD) method, electromagnetic field, surge


In this paper, fundamentals of the transmission-line modeling (TLM) method are briefly explained, and procedures to incorporate lumped-circuit elements such as a resistor, an inductor, and a capacitor in TLM calculations are described. Then, the method is applied to analyzing surges on simple conductor systems including lumped-circuit elements. The surge voltage and current waveforms calculated using the TLM method agree well with the corresponding waveforms calculated using the finite-difference time-domain (FDTD) method.

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