Design considerations of a direct drive brushless PM machine with concentrated windings

R Wrobel, PH Mellor

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

4 Citations (Scopus)

Abstract

The paper considers the optimal design of an open slot, external rotor torque motor. Combinations of pole and slot numbers are presented for which the winding factor is maximal and torque ripple is minimal. A detailed optimisation of the magnetic circuit design of the six most promising pole-slot configurations has been undertaken using the combination of a genetic algorithm (GA) and a parametric finite element model. These candidate motor versions are characterised by the same total slot area available for the winding and by equal volumes of permanent magnet. An alternative two-segment Halbach arrangement of the rotor permanent magnets is also proposed to further increase the volumetric torque density.
Translated title of the contributionDesign considerations of a direct drive brushless PM machine with concentrated windings
Original languageEnglish
Title of host publicationIEEE International Conference on Electric Machines and Drives, IEMDC 2005, San Antonio, Texas, USA, 15-18 May
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages655 - 658
Number of pages4
ISBN (Print)0780389875
Publication statusPublished - 12 May 2005

Bibliographical note

Other identifier: 0780389883

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