Improving efficiency of full-wave electromagnetic analysis of grounding systems within homogeneous earth

• Autorzy: Markovski Blagoja , Grcev Leonid , Arnautovski-Toseva Vesna , Angelevska Kostadinivska Jasmina , Kuhar Andrijana

Identyfikatory

DOI

10.15199/48.2019.05.03

Warianty tytułu

PL

Poprawa efektywności analizy elektromagnetycznej układów uziemienia w jednorodnym środowisku ziemi

• Języki publikacji: EN

Abstrakty

EN

Efficient approach for full-wave modelling of grounding systems is provided. First the electric field integral equations are cast in form that is more suitable for grounding analysis and have improved convergence. Then numerical evaluation of the Sommerfeld integrals is substituted by bivariate cubic interpolation procedure of the solutions from pre-computed interpolation grid. This procedure provides substantial improvement of efficiency of the full-wave electromagnetic analysis of grounding systems, while introducing a negligible error in the results.

PL

W artykule opisano efektywne podejście do modelowania systemów uziemiających. W pierwszej części podano równania różniczkowe opisujące pole elektryczne w formie, która jest bardziej odpowiednia dla analizy uziemienia i pozwala na uzyskanie lepszej zbieżności z wynikami eksperymentu. Następnie obliczenia numeryczne całek Sommerfelda zastąpiono dwuzmienną interpolacją sześcienną rozwiązań z wcześniej obliczonej siatki interpolacyjnej. Ta procedura zapewnia znaczną poprawę wydajności pełnej elektromagnetycznej analizy układów uziemienia, jednocześnie wprowadzając nieznaczny błąd w wynikach.

Słowa kluczowe

EN

grounding system; Sommerfeld integral; analysis grounding system

PL

układ uziemienia; całka Sommerfelda; analiza układu uziemienia

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2019
• Tom: R. 95, nr 5
• Strony: 9--13
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Markovski Blagoja

• Ss Cyril and Methodius University in Skopje, Faculty of Electrical Engineering and Information Technologies, Rugjer Boskovic 18, P.O. box 574, Skopje, Macedonia

autor

Grcev Leonid

• Macedonian Academy of Sciences and Arts, Skopje 1000, Macedonia

autor

Arnautovski-Toseva Vesna

• Ss Cyril and Methodius University in Skopje, Faculty of Electrical Engineering and Information Technologies, Rugjer Boskovic 18, P.O. box 574, Skopje, Macedonia

autor

Angelevska Kostadinivska Jasmina

• Ss Cyril and Methodius University in Skopje, Faculty of Electrical Engineering and Information Technologies, Rugjer Boskovic 18, P.O. box 574, Skopje, Macedonia

autor

Kuhar Andrijana

• Ss Cyril and Methodius University in Skopje, Faculty of Electrical Engineering and Information Technologies, Rugjer Boskovic 18, P.O. box 574, Skopje, Macedonia

Bibliografia

• [1] Grcev L., Modeling of grounding electrodes under lightning current, IEEE Trans. Electromagn. Compat., 51 (2009), No. 3, 559-571.
• [2] Grcev L., Deursen A.P.J. and Waes J.B.M., Lightning current distribution to ground at a power line tower carrying a radio base station, IEEE Trans. Electromagn. Compat., 47 (2005), No. 1, 160-170.
• [3] Otero A.F., Cidras J. and Alamo J.L., Frequency-dependent grounding grid calculation by means of a conventional nodal analysis technology, IEEE Trans. Power Del., 14 (1999), No. 3, 873–877.
• [4] Yutthagowith P., Ametani A., Nagaoka N. and Baba Y., Application of the partial element equivalent circuit method to analysis of transient potential rises in grounding systems. IEEE Trans. Electromagn. Compat., 53 (2011), No. 3, 726–736.
• [5] Sunde E. D., Earth conduction effects in transmission systems, 2nd ed., (1968), New York: Dover.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).