Numerical Simulation of Currents Distribution Along Grounding Grid Buried in Horizontal Multi-layered Earth in Frequency Domain Based Dynamic State Complex Image Method
| Autor: | Zhong-Xin Li, Liu-Cun Zhang, Cui-Xia Zhang, Yu Yin |
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| Rok vydání: | 2015 |
| Předmět: |
Electromagnetic field
Engineering Computer simulation business.industry Mechanical Engineering Nodal analysis Mathematical analysis Energy Engineering and Power Technology Electromagnetic radiation Moment (mathematics) Frequency domain Electronic engineering Electrical and Electronic Engineering Galerkin method business Electrical impedance |
| Zdroj: | Electric Power Components and Systems. 43:1573-1582 |
| ISSN: | 1532-5016 1532-5008 |
| DOI: | 10.1080/15325008.2015.1051167 |
| Popis: | A new mathematical model for accurately computing currents along a grounding grid buried in a horizontal multi-layered earth model has been developed in this article, which is a hybrid of Galerkin’s method of moment and the conventional nodal analysis method; the propagation effect of an electromagnetic wave has been considered. The dynamic state complex image method and closed form of Green’s function of a dipole or monopole in the multi-layered earth model are introduced to enhance efficiency of the method calculation; meanwhile, an analytical formula for mutual induction and impedance coefficients calculation have been adopted to accelerate the calculation. Finally, some numerical results about the distribution of an electromagnetic field and currents along a grounding grid have been discussed, and some conclusions have been obtained. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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