dc.identifier.uri |
http://dx.doi.org/10.15488/11934 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/12029 |
|
dc.contributor.author |
Hoffmann, Alexander
|
|
dc.contributor.author |
Ponick, Bernd
|
|
dc.date.accessioned |
2022-04-04T12:52:00Z |
|
dc.date.available |
2022-04-04T12:52:00Z |
|
dc.date.issued |
2022 |
|
dc.identifier.citation |
Hoffmann, A.; Ponick, B.: Method to Predict the Non-Uniform Potential Distribution in Random Electrical Machine Windings under Pulse Voltage Stress. In: Energies 15 (2022), Nr. 1, 358. DOI: https://doi.org/10.3390/en15010358 |
eng |
dc.description.abstract |
This article describes a practical method for predicting the distribution of electric potential inside an electrical machine’s winding based on design data. It broadens the understanding of winding impedance in terms of inter-winding behavior and allows to properly design an electrical machine’s insulation system during the development phase. The predictions are made based on an frequency-dependent equivalent circuit of the electrical machine which is validated by measurements in the time domain and the frequency domain. Element parameters for the equivalent circuit are derived from two-dimensional field simulations. The results demonstrate a non-uniform potential distribution and demonstrate that the potential difference between individual turns and between turns and the stator core exceeds the expected values. The findings also show a link between winding impedance and potential oscillations inside the winding. Additionally, the article provides an overview of the chronological progression of turn-based models and shows how asynchronous multiprocessing is used to accelerate the solution process of the equivalent circuit. |
eng |
dc.language.iso |
eng |
eng |
dc.publisher |
Basel : MDPI |
|
dc.rights |
CC BY 4.0 Unported |
eng |
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
differential mode |
eng |
dc.subject |
electrical machine |
eng |
dc.subject |
frequency inverter |
eng |
dc.subject |
frequency response |
eng |
dc.subject |
HF impedance |
eng |
dc.subject |
HF lumped parameter model |
eng |
dc.subject |
HF modeling |
eng |
dc.subject |
insulation stress |
eng |
dc.subject |
potential distribution |
eng |
dc.subject |
random-wound |
eng |
dc.subject |
voltage stress |
eng |
dc.subject |
wide-bandgap |
eng |
dc.subject.ddc |
620 | Ingenieurwissenschaften und Maschinenbau
|
eng |
dc.title |
Method to Predict the Non-Uniform Potential Distribution in Random Electrical Machine Windings under Pulse Voltage Stress |
eng |
dc.type |
Article |
eng |
dc.type |
Text |
eng |
dc.relation.essn |
1996-1073 |
|
dc.relation.doi |
10.3390/en15010358 |
|
dc.bibliographicCitation.firstPage |
358 |
|
dc.date.updated |
2022-03-14T14:55:04Z |
|
dc.description.version |
publishedVersion |
eng |
tib.accessRights |
frei zug�nglich |
eng |