Design and construction of a wide speed range novel brushless DC motor

J. F. Eastham, D. M. Ionel, T. Betzer

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


The paper describes a novel brushless d.c. motor of the interior magnet type which uses radial quadrature axis flux barriers. The purpose of these is to reduce the armature flux, particularly when it is cross magnetising and thus reduce the saturation in the teeth of the machine. Comparisons are drawn between the new machine and an equivalent conventional version using both finite element analysis and the results of practical standstill tests. It is shown that the torque performance of the machines is about the same but the tooth densities are considerably reduced in the machine with barriers.

Original languageEnglish
Pages (from-to)410-412
Number of pages3
JournalIEE Conference Publication
Issue number412
StatePublished - 1995
EventProceedings of the 7th International Conference on Electrical Machines and Drives - Durham, UK
Duration: Sep 11 1995Sep 13 1995

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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