Skip to main content

Research Repository

Advanced Search

Rotating Electrical Machines: Poynting Flow

Donaghy-Spargo, C.M.

Rotating Electrical Machines: Poynting Flow Thumbnail


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 Mar 28, 2024
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

Files

Accepted Journal Article (1.4 Mb)
PDF

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
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.





You might also like



Downloadable Citations