A Complex Study of Stator Tooth-Coil Winding Thermal Models for PM Synchronous Motors Used in Electric Vehicle Applications

Veg, Lukáš; Kaska, Jan; Skalicky, Martin; Pechánek, Roman

doi:10.3390/en14092395

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…Efforts have also been made to simulate the conductor lay (i.e. position of conductors in the slot) by Hoffmann et al [16], Du-Bar and Wallmark [46] along with Veg et al [47]. Beyond AC loss estimation, such methodologies have also been used for assessing thermal performance [47], voltage stresses [16] and to benchmark new winding technologies [31], [46].…”

Section: Ac Loss Estimation Via Analytical Approachmentioning

confidence: 99%

Designing for Conductor Lay and AC Loss Variability in Multistrand Stator Windings

Hoole

Mellor

Simpson

2023

IEEE Trans. on Ind. Applicat.

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Vehicle electrification places significant pressures on electric machine design due to the need for increased power densities and mass production. These two requirements couple when designing multistrand stator windings, which exhibit significant AC loss variability as a result of the random nature of the conductor lay within the stator slot caused by automated insert winding. This paper presents two prediction methods for AC loss variability to be deployed at the winding design stage. The first consists of an analytical approach, whilst the second constructs a 2D finite element analysis geometry that captures conductor lay characteristics. Comparison of predictions from both approaches to experimental AC loss measurements established that the proposed models capture the experimentally observed AC loss variability characteristics and that the analytical method is suitable for early design stages whilst the finite element approach should be adopted once the winding configuration is finalised.

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