Paper Info
Title
Rectangular And Random Conductors: Ac Losses Evaluations And Manufacturing Considerations
Abstract
This paper presents a comparison between hairpin and random distributed winding in electrical machines for automotive applications. Indeed, the overall performance of an electrical drive system is seriously affected by its winding design. The considered electrical machine has a peak power of 115kW and a maximum operating speed of 12000 rpm. Both cost and manufacturing aspects are here discussed in detail. Two different machine topologies have been investigated and Finite Element Analysis (FEA) results are presented and discussed. Then, the comparison between hairpin and random winding configuration in terms of AC copper losses are presented for the selected geometry. The accurate AC losses estimation can be done by modelling each single conductor. In order to significantly reduce the simulation time, a domain model reduction has been adopted. Based on two different driving cycles, Urban Dynamometer Driving Schedule (UDDS) and Highway Fuel Economy Test (HWFET), the AC losses have been evaluated. It is shown that horizontal pin segmentation can contribute to considerable AC loss reduction.
Year
DOI
Venue
2020
10.1109/IECON43393.2020.9254278
IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
Keywords
DocType
ISSN
AC losses, electrical machines, winding, high frequency, automotive, hairpin, random, segmented hairpin, manufacturing, mass production, UDDS, HWFET
Conference
1553-572X
Citations 
PageRank 
References 
0
0.34
0
Authors
9
Name
Order
Citations
PageRank
Eraldo Preci100.68
Giorgio Valente200.34
Anuvav Bardalai300.34
Tommaso Transi400.34
Tianjie Zou500.34
David Gerada6429.87
Michele Degano7116.81
Giampaolo Buticchi85722.36
Chris Gerada914839.69