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Lookup NU author(s): Dr Jamie Washington, Dr Glynn Atkinson, Professor Nick BakerORCiD
This paper discusses a method for reducing cogging torque and harmonic content of back-electromotive force (EMF) waveforms in modulated pole machines (MPMs). Tooth pitching is applied to a separate phase MPM in order to reduce the most prominent harmonics present in a three-phase MPM's cogging torque. Experimental results show that the application of tooth pitching to these machines can reduce the cogging torque and back-EMF harmonics significantly. This comes without a significant impact to the useful output of the machine, which is confirmed by the comparison of measured results for two prototypes. Such a technique can be easily applied to existing machine designs without the need for extra components and for the same production cost.
Author(s): Washington JG, Atkinson GJ, Baker NJ
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Energy Conversion
Year: 2016
Volume: 31
Issue: 2
Pages: 759-768
Print publication date: 01/06/2016
Online publication date: 19/02/2016
Acceptance date: 14/01/2016
Date deposited: 08/03/2016
ISSN (print): 0885-8969
ISSN (electronic): 1558-0059
Publisher: IEEE
URL: http://dx.doi.org/10.1109/TEC.2016.2520200
DOI: 10.1109/TEC.2016.2520200
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