Title :
Time-domain treatment of multi-layer soil in transient analysis of aerial multi-conductor transmission lines
Author :
Lu, Tiebing ; Qi, Lei ; Cui, Xiang
Author_Institution :
North China Electr. Power Univ., Hebei
Abstract :
Based on the complex ground return plane method and Maxwell´s equations, the ground return impedance of aerial multi-conductor transmission lines (MTLs) above multi-layer soil is researched in frequency domain, and its time-domain expression is obtained by using the vector fitting method and inverse Laplace transform. After the validity of the method above is tested, the effect of the multi-layer soil is included in the FDTD method based on recursive convolution in order to research the wave process of aerial MTLs. The method proposed is demonstrated to give the same results as the famous software EMTP, and to have a little difference from the results of method of moment (MoM). Finally, two examples are analyzed
Keywords :
Laplace transforms; Maxwell equations; electromagnetic compatibility; electromagnetic wave propagation; finite difference time-domain analysis; impedance matrix; inverse problems; method of moments; multiconductor transmission lines; transient analysis; EMTP software; FDTD method; Maxwell equations; aerial multiconductor transmission lines; frequency-domain time-domain analysis; ground return impedance; ground return plane method; inverse Laplace transform; method of moment; multilayer soil; recursive convolution; transient analysis; vector fitting method; wave propagation; Finite difference methods; Frequency domain analysis; Impedance; Laplace equations; Maxwell equations; Multiconductor transmission lines; Soil; Testing; Time domain analysis; Transient analysis;
Conference_Titel :
Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-7779-6
DOI :
10.1109/ICSMC2.2003.1428214
