Details
| Original language | English |
|---|---|
| Title of host publication | 2022 International Conference on Electrical Machines, ICEM 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2242-2248 |
| Number of pages | 7 |
| ISBN (electronic) | 9781665414326 |
| ISBN (print) | 978-1-6654-1433-3 |
| Publication status | Published - 2022 |
| Event | 2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain Duration: 5 Sept 2022 → 8 Sept 2022 |
Abstract
High frequency machine models are commonly employed due to the rising number of defects resulting from bearing currents. The model parameters are identified by finite element method (FEM) simulations, taking current and field displacement due to inter-wire couplings into account. Usually, this identification is performed with a single-slot model. Unfortunately, a single-slot cannot achieve the accuracy of a full model, which in turn is computationally expensive. Thus, this paper deals with the trade-off between time and cost efficiency of a single-slot and the accuracy of a full machine simulation. The coupling coefficients of all wires within a machine's cross-section will be examined to identify the number of relevant slots. The single-slot model will be extended to the number of relevant slots. The extended model will be validated using comparisons with the full machine model. The result shows that the extended model provides a attractive compromise between accuracy and running time.
Keywords
- Bearing current, Electrical machines, Finite element analysis, High-frequency modelling, High-frequency overvoltages, Simulations
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
- Engineering(all)
- Mechanical Engineering
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2022 International Conference on Electrical Machines, ICEM 2022. Institute of Electrical and Electronics Engineers Inc., 2022. p. 2242-2248.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - An Investigation into the Trade-Off between Full Machine and Single-Slot FEM Simulations for Electrical Machine Modeling at High Frequencies with Respect to Inter-Wire Couplings
AU - Behrendt, Cara Nastasja
AU - Dittmann, Jochen
AU - Knebusch, Benjamin
AU - Ponick, Bernd
N1 - Funding Information: This work is part of the project FVA Nr. 946 I and was funded by the Federal Ministry for Economic Affairs and Climate Action on the basis of a decision by the German Bundestag. Funding number: 22079N/1.
PY - 2022
Y1 - 2022
N2 - High frequency machine models are commonly employed due to the rising number of defects resulting from bearing currents. The model parameters are identified by finite element method (FEM) simulations, taking current and field displacement due to inter-wire couplings into account. Usually, this identification is performed with a single-slot model. Unfortunately, a single-slot cannot achieve the accuracy of a full model, which in turn is computationally expensive. Thus, this paper deals with the trade-off between time and cost efficiency of a single-slot and the accuracy of a full machine simulation. The coupling coefficients of all wires within a machine's cross-section will be examined to identify the number of relevant slots. The single-slot model will be extended to the number of relevant slots. The extended model will be validated using comparisons with the full machine model. The result shows that the extended model provides a attractive compromise between accuracy and running time.
AB - High frequency machine models are commonly employed due to the rising number of defects resulting from bearing currents. The model parameters are identified by finite element method (FEM) simulations, taking current and field displacement due to inter-wire couplings into account. Usually, this identification is performed with a single-slot model. Unfortunately, a single-slot cannot achieve the accuracy of a full model, which in turn is computationally expensive. Thus, this paper deals with the trade-off between time and cost efficiency of a single-slot and the accuracy of a full machine simulation. The coupling coefficients of all wires within a machine's cross-section will be examined to identify the number of relevant slots. The single-slot model will be extended to the number of relevant slots. The extended model will be validated using comparisons with the full machine model. The result shows that the extended model provides a attractive compromise between accuracy and running time.
KW - Bearing current
KW - Electrical machines
KW - Finite element analysis
KW - High-frequency modelling
KW - High-frequency overvoltages
KW - Simulations
UR - http://www.scopus.com/inward/record.url?scp=85141069881&partnerID=8YFLogxK
U2 - 10.1109/ICEM51905.2022.9910591
DO - 10.1109/ICEM51905.2022.9910591
M3 - Conference contribution
AN - SCOPUS:85141069881
SN - 978-1-6654-1433-3
SP - 2242
EP - 2248
BT - 2022 International Conference on Electrical Machines, ICEM 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 International Conference on Electrical Machines, ICEM 2022
Y2 - 5 September 2022 through 8 September 2022
ER -