Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Christopher Donaghy-Spargo"'
Publikováno v:
The Journal of Engineering (2019)
This paper discusses two methods of altering the harmonic content of the spatial air-gap flux density waveform in synchronous machines (generators and motors). First, fractional-conductor windings are analysed for adoption as a replacement for a conv
Externí odkaz:
https://doaj.org/article/14e906190e754bf181791ad6838dd32e
Publikováno v:
The Journal of Engineering (2019)
The interest in hybrid electric aircraft has invigorated research into superconducting power networks and superconducting electrical machines. Underpinning this is the ability to control the flow of electrical current at cryogenic temperatures, using
Externí odkaz:
https://doaj.org/article/ef807347ff0e4446b0aa9e6f8279131d
Publikováno v:
The Journal of Engineering (2019)
This study describes transient electromagnetic phenomena in electrical conductors that are connected to modern power electronic circuits and therefore subjected to current controlled pulses with fast rise times and high peak current ratings. Electrom
Externí odkaz:
https://doaj.org/article/9e284e6d901f45eab2f69b04fc474729
Publikováno v:
Wind energy, 2020, Vol.23(4), pp.1135-1144 [Peer Reviewed Journal]
This paper presents a simplified automated fault detection scheme for wind turbine induction generators with rotor electrical asymmetries. Fault indicators developed in previous works have made use of the presence of significant spectral peaks in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8b0d476a9c38c7c6868b70b4ae54a81
http://dro.dur.ac.uk/29937/
http://dro.dur.ac.uk/29937/
Autor:
Xu Deng, Nilanjan Chakraborty, Barrie Mecrow, Richard D. Whalley, Christopher Donaghy-Spargo, Xiang Shen
Publikováno v:
2019 IEEE Energy Conversion Congress and Exposition (ECCE).
Power dense electrical machines are usually liquid cooled; however, this creates a more complex system, involving fluid pumps and heat exchangers: where possible direct air-cooling should be considered. Air speed, turbulence intensity and detailed co
Publikováno v:
Philosophical transactions of the Royal Society A : mathematical, physical and engineering sciences, 2018, Vol.376(2134), pp.20180229 [Peer Reviewed Journal]
The year 2018 marks the 125th anniversary of the first of three published volumes on electromagnetic theory by the eminent Victorian electrical engineer, physicist and mathematician, Oliver Heaviside FRS. This commemorative issue of Philosophical Tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::837ceb8d7aadefd4c35751479e9a67f7
https://europepmc.org/articles/PMC6232577/
https://europepmc.org/articles/PMC6232577/
Publikováno v:
IEEE Transactions on Industrial Electronics, 2018, Vol.65(6), pp.4475-4482 [Peer Reviewed Journal]
This paper explores the leakage inductance of a single-tooth wound synchronous reluctance motor and its influence on motor performance. It is shown that the stator leakage inductance heavily influences the true saliency ratio in synchronous reluctanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3322e576aa5fb2db0d52b70bc68bc1e4
http://dro.dur.ac.uk/23982/1/23982.pdf
http://dro.dur.ac.uk/23982/1/23982.pdf
Publikováno v:
IEEE transactions on magnetics, 2017, Vol.53(11), pp.8206207 [Peer Reviewed Journal]
This paper explores some of the key electromagnetic design aspects of a synchronous reluctance motor that is equipped with single-tooth windings (i.e., fractional slot concentrated windings). The analyzed machine, a 6-slot 4-pole motor, utilizes a se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96c3ddbc43ce7d325d9d654d51700266
http://dro.dur.ac.uk/21675/
http://dro.dur.ac.uk/21675/
Autor:
Christopher Donaghy-Spargo
Publikováno v:
IEEE transactions on magnetics, 2017, Vol.53(11), pp.8206308 [Peer Reviewed Journal]
This paper explores the tradeoff between the electromagnetic and mechanical performances with regard to the design of a synchronous reluctance machine rotor with fine features in the lamination profile—the analyzed machine consists of four rotor po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::098af483a61f70650cf7cd95eb8c2d5d
http://dro.dur.ac.uk/21674/
http://dro.dur.ac.uk/21674/
Publikováno v:
(2017). 2017 IEEE International Electric Machines and Drives Conference (IEMDC) ; proceedings. Piscataway: IEEE, pp. 556-561
This paper explores the inductance characteristics present in single tooth wound synchronous reluctance motors, specifically the stator leakage inductance. Despite the nature of the single tooth design resulting in increased air gap harmonic content,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35125e3ca9964ae17147176b9a39a7e1
http://dro.dur.ac.uk/23454/
http://dro.dur.ac.uk/23454/