Inverse Laplace Transform of the Ground Impedance Matrix of Overhead Lines

被引:8
|
作者
Tossani, Fabio [1 ]
Napolitano, Fabio [1 ]
Borghetti, Alberto [1 ]
机构
[1] Univ Bologna, Dept Elect Elect & Informat Engn, I-40136 Bologna, Italy
关键词
Electromagnetic transient program; ground impedance; inverse laplace transform(ILT); multiconductor lines; transient analysis; transient ground resistance(TGR); MULTICONDUCTOR LINES; TRANSMISSION-LINES; RESISTANCE MATRIX; ELEMENTS;
D O I
10.1109/TEMC.2017.2765207
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter deals with the calculation in time domain of the transient ground resistance matrix of an overhead transmission line (TL). Each element of the matrix is evaluated by solving analytically the inverse Laplace transform of the general integral expressions of the ground impedance in frequency domain proposed by Sunde. The presented expressions are suitable for the direct implementation in an electromagnetic transient program (e.g., EMTP-like ones) based on a time domain solution of the TL's equations.
引用
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页码:2033 / 2036
页数:4
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