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Transient skin effect in power electronic applications.

Donaghy-Spargo, C. M. and Horsfall, A. B. (2019) 'Transient skin effect in power electronic applications.', Journal of engineering., 2019 (17). pp. 3696-3700.


This study describes transient electromagnetic phenomena in electrical conductors that are connected to modern power electronic circuits and therefore subjected to current controlled pulses with fast rise times and high peak current ratings. Electromagnetic field diffusion is discussed and a brief review of alternating current skin effect phenomena is presented before it is generalised to transient regimes of operation. It is shown that the magnetic field diffuses into the conductor from the outside on the initiation of a current pulse and therefore the axial current density distribution inside the conductor changes with time under a transient current due to the well-known electromagnetic relations – the current begins at the conductor surface and diffuses inwards. The implications of such behaviour are briefly discussed in the context of modern power electronics and its applications.

Item Type:Article
Full text:Publisher-imposed embargo
(AM) Accepted Manuscript
First Live Deposit - 30 July 2018
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Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
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Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
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Publisher statement:This is an open access article published by the IET under the Creative Commons Attribution License (
Record Created:30 Jul 2018 15:13
Last Modified:12 Jun 2019 10:04

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