Optimal design of permanent magnet brushless AC machines for electric vehicle applications

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Schofield, N.^a | Giraud-Audine, C.^a | Powell, D.J.^a | Howe, D.^{a; *}

Affiliations: [a] Department of Electronic & Electrical Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK

Correspondence: [*] Corresponding author: David Howe; Tel.: +44 114 2225195; Fax: +44 114 2225196; E-mail: d.howe@sheffield.ac.uk

Abstract: Permanent magnet brushless ac machines are ideally suited for traction applications, since they are energy efficient and have a high specific torque and a high peak to continuous torque capability. Further, they can be field-weakened to facilitate constant power operation over an extended speed range without compromising the VA rating of the drive. However, they must be design optimised with due regard to their duty cycle, their thermal management, the volt-ampere constraint of the drive and any space envelope constraints. A design methodology which accommodates these aspects into the electromagnetic design synthesis process has been developed and employed to design a traction machine for a small urban vehicle.

DOI: 10.3233/JAE-2002-452

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 15, no. 1-4, pp. 143-148, 2002