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Transient Skin Effect in Power Electronic Applications

Donaghy-Spargo, C.M.; Horsfall, A.B.

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Authors

A.B. Horsfall



Abstract

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.

Citation

Donaghy-Spargo, C., & Horsfall, A. (2019). Transient Skin Effect in Power Electronic Applications. Journal of Engineering, 2019(17), 3696-3700. https://doi.org/10.1049/joe.2018.8132

Journal Article Type Article
Acceptance Date Jul 30, 2018
Online Publication Date Apr 30, 2019
Publication Date Jun 30, 2019
Deposit Date Jul 30, 2018
Publicly Available Date Mar 29, 2024
Journal Journal of Engineering
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 2019
Issue 17
Pages 3696-3700
DOI https://doi.org/10.1049/joe.2018.8132

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