Dr Christopher Donaghy Spargo christopher.spargo@durham.ac.uk
Academic Visitor
Rotating Electrical Machines: Poynting Flow
Donaghy-Spargo, C.M.
Authors
Abstract
This paper presents a complementary approach to the traditional Lorentz and Faraday approaches that are typically adopted in the classroom when teaching the fundamentals of electrical machines - motors and generators. The approach adopted is based upon the Poynting Vector which illustrates the 'flow' of electromagnetic energy. It is shown through simple vector analysis that the energy-flux density flow approach can provide insight into the operation of electrical machines and it is also shown that the results are in agreement with conventional Maxwell Stress based theory. The advantage of this approach is its complementary completion of the physical picture regarding the electromechanical energy conversion process - it is also a means of maintaining student interest in this subject and as an unconventional application of the Poynting vector during normal study of electromagnetism.
Citation
Donaghy-Spargo, C. (2017). Rotating Electrical Machines: Poynting Flow. European Journal of Physics, 38(5), Article 055204. https://doi.org/10.1088/1361-6404/aa7dcc
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 5, 2017 |
Online Publication Date | Aug 14, 2017 |
Publication Date | Sep 1, 2017 |
Deposit Date | Jun 13, 2017 |
Publicly Available Date | Aug 14, 2018 |
Journal | European Journal of Physics |
Print ISSN | 0143-0807 |
Electronic ISSN | 1361-6404 |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 38 |
Issue | 5 |
Article Number | 055204 |
DOI | https://doi.org/10.1088/1361-6404/aa7dcc |
Public URL | https://durham-repository.worktribe.com/output/1357470 |
Files
Accepted Journal Article
(1.4 Mb)
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Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
This is an author-created, un-copyedited version of an article published in European Journal of Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6404/aa7dcc
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As the Version of Record of this article has been published on a subscription basis, this Accepted Manuscript is available for reuse under a CC BY-NC-ND 3.0 licence after a 12 month embargo period.
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