Ground-return parameters of submarine cables buried in the seabed
Lorenzo, G.
; Stracqualursi, E.
; Marzinotto, M.
;
Brandão Faria, J
; Araneo, R.
IEEE Transactions on Electromagnetic Compatibility Vol. 65, Nº 2, pp. 574 - 584, April, 2023.
ISSN (print): 0018-9375
ISSN (online): 1558-187X
Scimago Journal Ranking: 0,89 (in 2023)
Digital Object Identifier: 10.1109/TEMC.2023.3241363
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Abstract
The computation of sea/seabed-return distributed parameters of subsea cables is a relevant topic due to the growing importance of submarine connections. This article presents for the first time new formulas for the computation of self and mutual ground impedances and admittances for submarine cables buried in the seabed. The original theory developed by Sunde is applied to a three-media model with air, sea, and seabed. Referring to the installation practice of the Italian transmission system operator Terna S.p.A., we compare the prediction of the available models and assess the effect of the different approximations on the computation of the p.u.l. ground parameters. Finally, we define the limits of applicability of the available models that differ in accuracy and complexity.
