Thermal management of a high speed permanent magnet machine for an aeroengine

La Rocca, A.; Xu, Z.; Arumugam, P.; Pickering, S.J.; Eastwick, Carol; Gerada, C.; Bozhko, S.

Thermal management of a high speed permanent magnet machine for an aeroengine

La Rocca, A.; Xu, Z.; Arumugam, P.; Pickering, S.J.; Eastwick, Carol; Gerada, C.; Bozhko, S.

Authors

A. La Rocca

Z. Xu

P. Arumugam

S.J. Pickering

Professor CAROL EASTWICK CAROL.EASTWICK@NOTTINGHAM.AC.UK
PROFESSOR OF MECHANICAL ENGINEERING

C. Gerada

S. Bozhko

Abstract

The paper describes the mechanical and thermal design of a high speed, high power density synchronous permanent magnet machine for an aero engine starter generator system with a power rating of 150 kW and maximum speed of 32,000 rpm. As both mechanical and thermal aspects have a direct impact on machine overall performance and weight reduction, a critical design optimisation was carried out. Intensive cooling is guaranteed by direct liquid oil-cooling of stationary components; a stator sleeve is also introduced into the airgap to prevent excessive windage. Thermal investigations were carried out by the means of Computational Fluid Dynamics (CFD) and Lumped Parameter Thermal Network (LPTN) analyses. Experimental validation also allowed the identification of most critical machine temperatures and the validation of the models developed. Finite Element Analysis(FEA) is used for the static structural analyses of the statorsleeve.

Citation

La Rocca, A., Xu, Z., Arumugam, P., Pickering, S., Eastwick, C., Gerada, C., & Bozhko, S. Thermal management of a high speed permanent magnet machine for an aeroengine. Presented at XXIIth International Conference on Electrical Machines (ICEM '2016)

Conference Name	XXIIth International Conference on Electrical Machines (ICEM '2016)
End Date	Sep 7, 2016
Acceptance Date	May 20, 2016
Publication Date	Sep 4, 2016
Deposit Date	Jun 16, 2016
Publicly Available Date	Sep 4, 2016
Peer Reviewed	Peer Reviewed
Keywords	Aerospace Engineering, Cooling, Electric machines, Generators, High Speed Machine, Mechanical Engineering, Permanent magnet motors, Thermal Management
Public URL	https://nottingham-repository.worktribe.com/output/819277
Publisher URL	http://ieeexplore.ieee.org/document/7732908/
Related Public URLs	http://dx.doi.org/10.1109/ICELMACH.2016.7732908
Contract Date	Jun 16, 2016