Title :
FDTD Modeling of the Earthing Conductor in the Transient Grounding Resistance Analysis
Author :
Xiong, Run ; Chen, Bin ; Mao, Yun-Fei ; Deng, Wei ; Wu, Qun ; Qiu, Yan-Yu
Author_Institution :
Nat. Key Lab. on Electromagn. Environ. & Electro-Opt. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
The grounding system plays an important part in the lightning protection system of power and communication systems. The finite-difference time-domain (FDTD) method is widely used in modeling complex electromagnetic interaction problems. However, it is difficult to model the earthing conductor using the standard FDTD method in the transient grounding resistance (TGR) analysis for the electrically small depth of the earthing conductors. In this letter, a new method has been proposed to model the earthing conductor by incorporating the singularities of the field variation near the conductor into the Faraday´s contour path. The efficiency of the proposed model has been approved by verifying both the supposed field distribution near the earthing conductor and the TGR.
Keywords :
conductors (electric); earthing; finite difference time-domain analysis; lightning protection; Faraday contour path; earthing conductor; electromagnetic interaction; field distribution; finite difference time-domain analysis; lightning protection; transient grounding resistance analysis; Conductors; Finite difference methods; Grounding; Mathematical model; Standards; Time domain analysis; Transient analysis; Earthing conductor; finite-difference time-domain method (FDTD); transient grounding resistance (TGR);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2213569
