Hollow direct air cooled windings : Rotor design process
(2020) 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020 In 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020 p.489-496- Abstract
This paper presents theoretical and practical analyses of four different design options for an electrically excited synchronous machine (EESM) with hollow field winding conductors for internal air cooling. This cooling concept allows for effective direct cooling of the windings.Simulations are performed for the electromagnetic evaluation of the proposed designs, while a plastic 3D printed rotor mock- up is used to validate the winding method. The electromagnetic simulation results are used to estimate the increased losses during nominal excitation, for a comparison with a hypothetical corresponding PMSM. The rotor mock-up proved to be an effective way to test winding methods and rule out design options that worked well in theory, but... (More)
This paper presents theoretical and practical analyses of four different design options for an electrically excited synchronous machine (EESM) with hollow field winding conductors for internal air cooling. This cooling concept allows for effective direct cooling of the windings.Simulations are performed for the electromagnetic evaluation of the proposed designs, while a plastic 3D printed rotor mock- up is used to validate the winding method. The electromagnetic simulation results are used to estimate the increased losses during nominal excitation, for a comparison with a hypothetical corresponding PMSM. The rotor mock-up proved to be an effective way to test winding methods and rule out design options that worked well in theory, but not in practice.Based on the theoretical and practical analyses, a conclusion is drawn on what rotor design option is most suitable for this direct cooling concept. The chosen design has separate rotor teeth assembled to the rotor yoke with dovetails.
(Less)
- author
- Estenlund, Samuel LU
- organization
- publishing date
- 2020
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Air cooling, Direct cooling, Electric machine, Electrically excited, Prototype, Traction
- host publication
- 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020
- series title
- 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020
- article number
- 9161849
- pages
- 8 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020
- conference location
- Sorrento, Italy
- conference dates
- 2020-06-24 - 2020-06-26
- external identifiers
-
- scopus:85091186673
- ISBN
- 9781728170190
- DOI
- 10.1109/SPEEDAM48782.2020.9161849
- language
- English
- LU publication?
- yes
- id
- 9b53639c-de68-402a-8f89-5e5c329ea83b
- date added to LUP
- 2020-10-30 11:17:05
- date last changed
- 2022-04-19 01:37:17
@inproceedings{9b53639c-de68-402a-8f89-5e5c329ea83b,
abstract = {{<p>This paper presents theoretical and practical analyses of four different design options for an electrically excited synchronous machine (EESM) with hollow field winding conductors for internal air cooling. This cooling concept allows for effective direct cooling of the windings.Simulations are performed for the electromagnetic evaluation of the proposed designs, while a plastic 3D printed rotor mock- up is used to validate the winding method. The electromagnetic simulation results are used to estimate the increased losses during nominal excitation, for a comparison with a hypothetical corresponding PMSM. The rotor mock-up proved to be an effective way to test winding methods and rule out design options that worked well in theory, but not in practice.Based on the theoretical and practical analyses, a conclusion is drawn on what rotor design option is most suitable for this direct cooling concept. The chosen design has separate rotor teeth assembled to the rotor yoke with dovetails. </p>}},
author = {{Estenlund, Samuel}},
booktitle = {{2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020}},
isbn = {{9781728170190}},
keywords = {{Air cooling; Direct cooling; Electric machine; Electrically excited; Prototype; Traction}},
language = {{eng}},
pages = {{489--496}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2020}},
title = {{Hollow direct air cooled windings : Rotor design process}},
url = {{http://dx.doi.org/10.1109/SPEEDAM48782.2020.9161849}},
doi = {{10.1109/SPEEDAM48782.2020.9161849}},
year = {{2020}},
}