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Investigation of end-winding proximity losses in electromagnetic devices

Lookup NU author(s): Dr Rafal Wrobel


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This paper presents an investigation into proximity losses in end-windings informed from the 3D finite element analysis of an ac power inductor. The proximity effect in winding conductors is a result of circulating ac currents caused by magnetic fields generated by nearby conductors. The calculated results confirm that the effects within the end-winding whist significant are lower compared to those with the active length of the conductors. The common approach of predicting proximity losses usind 2D field analyses accounts for active length of the conductors only, and therefore an endwinding correction factor is needed to obtain a more accurate estimate of loss. The theoretical prediction of losses within the inductor has been validated experimentally on a prototype inductor. The effect of winding temperature on proximity loss is also discussed. ©2010 IEEE.

Publication metadata

Author(s): Wrobel R, Mlot A, Mellor PH

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 19th International Conference on Electrical Machines, ICEM 2010

Year of Conference: 2010

Online publication date: 25/10/2010

Publisher: IEEE


DOI: 10.1109/ICELMACH.2010.5608236

Library holdings: Search Newcastle University Library for this item

ISBN: 9781424441754