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Induced Losses in Three-core SL-type High Voltage Cables

Induced Losses in Three-core SL-type High Voltage Cables
Induced Losses in Three-core SL-type High Voltage Cables
It is considered that the present IEC 60287 standard overestimates the induced losses in SL-type armored cables, which are commonly used to connect offshore windfarms to the onshore grid. This paper addresses the issue through a series of equivalent-circuit models for the estimation of circulating-current, eddy-current, and armor losses in these cables. Finite-element models are used for further validation. Both the finite-element and the equivalent-circuit models use an equivalent-material representation of the armor layer, for which two calculation methods are developed. The results demonstrate clearly that the equation for armor loss in such cables as presently used in IEC standards is overly conservative.
0885-8977
1505-1513
Goddard, K.F.
fe2a2194-8b55-43c1-bdca-341691b71b2d
Pilgrim, J A
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Chippendale, R.D.
18bccba7-02f3-4f9f-97d3-a8733dc7226d
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Goddard, K.F.
fe2a2194-8b55-43c1-bdca-341691b71b2d
Pilgrim, J A
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Chippendale, R.D.
18bccba7-02f3-4f9f-97d3-a8733dc7226d
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

Goddard, K.F., Pilgrim, J A, Chippendale, R.D. and Lewin, P.L. (2015) Induced Losses in Three-core SL-type High Voltage Cables. IEEE Transactions on Power Delivery, 30 (3), 1505-1513. (doi:10.1109/TPWRD.2014.2370895).

Record type: Article

Abstract

It is considered that the present IEC 60287 standard overestimates the induced losses in SL-type armored cables, which are commonly used to connect offshore windfarms to the onshore grid. This paper addresses the issue through a series of equivalent-circuit models for the estimation of circulating-current, eddy-current, and armor losses in these cables. Finite-element models are used for further validation. Both the finite-element and the equivalent-circuit models use an equivalent-material representation of the armor layer, for which two calculation methods are developed. The results demonstrate clearly that the equation for armor loss in such cables as presently used in IEC standards is overly conservative.

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Accepted/In Press date: 11 November 2014
e-pub ahead of print date: 13 November 2014
Published date: 1 June 2015
Organisations: EEE

Identifiers

Local EPrints ID: 377338
URI: http://eprints.soton.ac.uk/id/eprint/377338
ISSN: 0885-8977
PURE UUID: 8c2e5e50-9a41-437c-a6de-97d0f5b039a4
ORCID for J A Pilgrim: ORCID iD orcid.org/0000-0002-2444-2116

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Date deposited: 21 May 2015 12:58
Last modified: 18 Jan 2021 17:31

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Contributors

Author: K.F. Goddard
Author: J A Pilgrim ORCID iD
Author: R.D. Chippendale
Author: P.L. Lewin

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