Use of Fractional-Conductor Windings and Semi-Magnetic Slot Wedges in Synchronous Machines

Donaghy-Spargo, C.M.; Spargo, A.J.

doi:10.1049/joe.2018.8205

Use of Fractional-Conductor Windings and Semi-Magnetic Slot Wedges in Synchronous Machines

Donaghy-Spargo, C.M.; Spargo, A.J.

Authors

Dr Christopher Donaghy Spargo christopher.spargo@durham.ac.uk
Academic Visitor

A.J. Spargo

Abstract

This paper discusses two methods of altering the harmonic content of the spatial air-gap flux density waveform in synchronous machines (generators and motors). First, fractional-conductor windings are analysed for adoption as a replacement for a conventional distributed winding arrangement, their advantages and disadvantages briefly discussed and an example design scenario presented. Second, analysis and discussion regarding the use of semi-magnetic slot wedges as a replacement for glass-fibre type wedges is presented to complement the choice of winding in synchronous machines. Both methods are shown to benefit machine performance under certain circumstances.

Citation

Donaghy-Spargo, C., & Spargo, A. (2019). Use of Fractional-Conductor Windings and Semi-Magnetic Slot Wedges in Synchronous Machines. Journal of Engineering, 2019(17), 4396-4400. https://doi.org/10.1049/joe.2018.8205

Journal Article Type	Article
Acceptance Date	Jul 30, 2018
Online Publication Date	May 14, 2019
Publication Date	May 14, 2019
Deposit Date	Jul 30, 2018
Publicly Available Date	Jul 12, 2019
Journal	Journal of Engineering
Publisher	Institution of Engineering and Technology (IET)
Peer Reviewed	Peer Reviewed
Volume	2019
Issue	17
Pages	4396-4400
DOI	https://doi.org/10.1049/joe.2018.8205

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This is an open access article published by the IET under the Creative Commons Attribution License
(http://creativecommons.org/licenses/by/3.0/)