Naslov
A review of methods for grounding grid analysis

Autori
Sarajčev, Petar ; Vujević, Slavko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
17th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2009) / Rožić, Nikola ; Begušić, Dinko - Split : Fakultet elektrotehnike i računarstva Sveučilišta u Zagrebu, 2009, 42-49

ISBN
978-953-290-013-2

Skup
17th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2009)

Mjesto i datum
Korčula, Hrvatska; Hvar, Hrvatska; Split, Hrvatska, 24.09.2009. - 26.09.2009

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
electromagnetic models; frequency domain; grounding grid analysis; image methods; multilayer soil; time domain

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA