A review of methods for grounding grid analysis (CROSBI ID 555799)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Sarajčev, Petar ; Vujević, Slavko
engleski
A review of methods for grounding grid analysis
This paper presents a brief review of the most important methods available for the grounding grid analysis. This includes numerical methods intended for the grounding grid direct current, time-harmonic current and transient current energization. Emphasis will be given to the methods involving transient grounding grid analysis. Available numerical methods will be surveyed according to the implemented soil model, e.g. homogenous soil, horizontally and vertically stratified multilayer soil as well as exceptionally heterogeneous soil. In that regard, various possible treatments of the boundary between soil layers are discussed. Here, image methods feature prominently in a solution to this problem. Whence, several possible image methods are reviewed. Additionally, numerical methods are surveyed according to the theoretical background approach. Here, one can make a clear distinction between circuit approach, transmission line approach, electromagnetic theory approach and hybrid approach. Numerical methods for the transient analysis of grounding grids are also reviewed in regards to the domain of the solution. Therefore, they could be regarded as frequency domain and time domain methods. Fast Fourier transform algorithm is seen as a conventional way of crossing between frequency and time domains. Major advantages and disadvantages of both approaches are pointed out as well.
electromagnetic models; frequency domain; grounding grid analysis; image methods; multilayer soil; time domain
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Podaci o prilogu
42-49.
2009.
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objavljeno
978-953-290-013-2
Podaci o matičnoj publikaciji
17th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2009)
Rožić, Nikola ; Begušić, Dinko
Split: Fakultet elektrotehnike i računarstva Sveučilišta u Zagrebu
Podaci o skupu
17th International Conference on Software, Telecommunications and Computer Networks (Softcom 2009)
pozvano predavanje
24.09.2009-26.09.2009
Korčula, Hrvatska; Hvar, Hrvatska; Split, Hrvatska