Calculation of positive-sequence and zero-sequence impedances of three-phase submarine cables
Calculation of positive-sequence and zero-sequence impedances of three-phase submarine cables
This paper describes semi-analytical calculation methods for the positive-sequence and zero-sequence impedances of 3-phase armored cables with solid sheaths and a single armor layer. Separate equivalent circuits are defined for these two impedances. Subsequently, circuit component values are calculated based on 2D field equations, with some 3D effects modeled. The existing approach for calculating zero-sequence impedance is corrected and expanded by inclusion of additional inductances due to solenoidal fields and magnetic armor effects. 3D finite-element models of cables with magnetic and non magnetic armor are used to assess the accuracy of our circuit models; discrepancies are less than 3% at frequencies between 50 Hz and 5 kHz. Python code with the implementation of the method is provided for accessibility.
Armored Cables, Sequence Impedance Calculation
Goddard, K.F.
fe2a2194-8b55-43c1-bdca-341691b71b2d
Rzempoluch, J.
84589606-910d-4e74-9025-25c09e66e6ab
Chaudhary, S.
25f0d213-03ef-4909-8cfc-29a8498aa28f
Callender, G.
4189d79e-34c3-422c-a601-95b156c27e76
Lewin, P.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Goddard, K.F.
fe2a2194-8b55-43c1-bdca-341691b71b2d
Rzempoluch, J.
84589606-910d-4e74-9025-25c09e66e6ab
Chaudhary, S.
25f0d213-03ef-4909-8cfc-29a8498aa28f
Callender, G.
4189d79e-34c3-422c-a601-95b156c27e76
Lewin, P.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Goddard, K.F., Rzempoluch, J., Chaudhary, S., Callender, G. and Lewin, P.
(2026)
Calculation of positive-sequence and zero-sequence impedances of three-phase submarine cables.
IEEE Transactions on Power Delivery.
(doi:10.1109/TPWRD.2026.3657673).
Abstract
This paper describes semi-analytical calculation methods for the positive-sequence and zero-sequence impedances of 3-phase armored cables with solid sheaths and a single armor layer. Separate equivalent circuits are defined for these two impedances. Subsequently, circuit component values are calculated based on 2D field equations, with some 3D effects modeled. The existing approach for calculating zero-sequence impedance is corrected and expanded by inclusion of additional inductances due to solenoidal fields and magnetic armor effects. 3D finite-element models of cables with magnetic and non magnetic armor are used to assess the accuracy of our circuit models; discrepancies are less than 3% at frequencies between 50 Hz and 5 kHz. Python code with the implementation of the method is provided for accessibility.
Text
Sequence_Impedance_Paper_Review_1_Submission_Final_Formatting
- Accepted Manuscript
More information
e-pub ahead of print date: 28 January 2026
Keywords:
Armored Cables, Sequence Impedance Calculation
Identifiers
Local EPrints ID: 510062
URI: http://eprints.soton.ac.uk/id/eprint/510062
ISSN: 0885-8977
PURE UUID: 675953f4-6fc3-4b8b-8f97-7b9e6fc7544e
Catalogue record
Date deposited: 16 Mar 2026 17:55
Last modified: 17 Mar 2026 03:09
Export record
Altmetrics
Contributors
Author:
K.F. Goddard
Author:
J. Rzempoluch
Author:
S. Chaudhary
Author:
G. Callender
Author:
P. Lewin
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics