Search: onr:"swepub:oai:DiVA.org:uu-416375" >
The influence of ed...
-
Felicetti, Roberto,1972-Uppsala universitet,Elektricitetslära,Hydro-power
(author)
The influence of eddy currents on the excitation winding impedance of solid and laminated salient pole synchronous machines
- Article/chapterEnglish2020
Publisher, publication year, extent ...
-
2020-07-01
-
Springer Science and Business Media LLC,2020
-
electronicrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:uu-416375
-
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-416375URI
-
https://doi.org/10.1007/s00202-020-01053-zDOI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
Open access funding provided by Uppsala University. This research has been carried out within the HydroFlex project, which has received funding from the European Union Horizon 2020 research and innovation programme under Grant Agreement No 764011.
-
This work investigates the establishment of steady-state eddy currents in solid and laminated salient poles and rotor rim of synchronous machines due to a periodic excitation voltage. It shows that the presence of eddy currents in the rotor magnetic circuit has the double effect of increasing the excitation winding AC-resistance and decreasing its magnetizing AC-inductance. According to that a simple analytical model is presented in here which allows a rapid rough estimation of the excitation winding AC-resistance when little information is available about the machine geometry and its electric/magnetic materials properties. The model is then verified by reproducing in frequency the excitation winding AC-resistance and the related power loss measured in two synchronous generators. Finally, the limits of reliability and applicability of the model are discussed. The model has implications for periodic field winding current control and voltage regulation in synchronous machines.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Abrahamsson, Johan,1977-Uppsala universitet,Elektricitetslära(Swepub:uu)johab598
(author)
-
Lundin, Urban,1972-Uppsala universitet,Elektricitetslära(Swepub:uu)urbanlun
(author)
-
Uppsala universitetElektricitetslära
(creator_code:org_t)
Related titles
-
In:Electrical engineering (Berlin. Print): Springer Science and Business Media LLC102:4, s. 2553-25660948-79211432-0487
Internet link
Find in a library
To the university's database