Lookup NU author(s): Dr Mehmet Kulan,
Dr Nick Baker,
Dr James Widmer
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This paper focuses on the improved thermal performance of electrical machines by increasing the conductor fill factor. A comparative design study of integrated starter generator (ISG) considering different pole/slot combinations and magnet topologies is used as a case study to fix slot dimensions. Compressed stator windings coupled with segmented stator structure are introduced to reduce copper losses of the optimized ISG. By performing quasi-static explicit dynamic simulations, deformation of insulation has been investigated regarding mechanical properties of the magnet wire enamels. It is noted that magnet wires at certain cross-sectional area can be compressed up to 0.72 fill factor without observing insulation failure. Thermal conductivity enhancement of the stator windings at improved slot fill factor is demonstrated by performing steady state and transient finite element thermal simulations.
Author(s): Kulan MC, Baker NJ, Widmer J
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 2016 XXII International Conference on Electrical Machines (ICEM)
Year of Conference: 2016
Online publication date: 03/11/2016
Acceptance date: 04/09/2016
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