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Modelling the Mechanical and Thermal Properties of Compressed Stator Windings

Lookup NU author(s): Dr Mehmet KulanORCiD, Dr Nick BakerORCiD, Dr James Widmer, Dr Simon LambertORCiD



This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by Institute of Engineering and Technology (IET), 2016.

For re-use rights please refer to the publisher's terms and conditions.


This paper discusses coil pressing through which stator windings are compressed at high pressures to enhance the slot fill factor of electrical machines. Deterioration of insulation in compressed windings is investigated by performing quasistatic explicit dynamics finite element simulations. The results obtained from the proposed method are further investigated experimentally to validate the durability of the compressed coils. It is shown that stator windings can be compressed to a certain degree without observing material failure. In order to demonstrate the thermal advantages of densely packed stator windings, both steady state thermal finite element analysis (FEA) simulations and semi-analytical methods have also been studied. A good agreement between analytical and FEA simulations is obtained. It is noted that steady state thermal finite element modeling could be used to predict effective thermal conductivity of stator windings for different slot fill factors.

Publication metadata

Author(s): Kulan MC, Baker NJ, Widmer JD, Lambert SM

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

Year of Conference: 2016

Online publication date: 10/11/2016

Acceptance date: 16/02/2016

Date deposited: 27/07/2016

Publisher: Institute of Engineering and Technology (IET)


DOI: 10.1049/cp.2016.0132

Library holdings: Search Newcastle University Library for this item

ISBN: 9781785611889