Details
| Original language | English |
|---|---|
| Title of host publication | 2022 International Conference on Electrical Machines and Systems, ICEMS 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (electronic) | 9781665493024 |
| ISBN (print) | 978-1-6654-9303-1 |
| Publication status | Published - 2022 |
| Event | 25th International Conference on Electrical Machines and Systems, ICEMS 2022 - Virtual, Online, Thailand Duration: 29 Nov 2022 → 2 Dec 2022 |
Abstract
The acoustic behavior of electric machines is defined by the electromagnetic forces and the structural-mechanical properties of the machine. The electromagnetic design of the machine determines which force waves occur beside the force waves of the fundamental spatial harmonic. If the force waves have a similar or an identical shape and frequency as an eigenpair of the stator (eigenfrequency and eigenmode), high acoustic noise emission is radiated into the surrounding area. Therefore, the determination of the mechanical eigenfrequencies and eigenmodes is just as important as the force calculation. However, the impact of different winding types and insulation techniques on the vibration behavior has not yet been analyzed in detail. In this work, the vibration behavior of a stator with a concentrated winding insulated with two different techniques is studied. Four different stator specimens are used: a blank stator, a stator with a loose winding, a stator with an impregnated winding and a stator with a potted winding. The stator specimens are measured by performing an experimental modal analysis and modeled using a 2D FE simulation. Equivalent material parameters are derived for the homogenized winding, consisting of the winding and the insulation. The resulting material parameters of the homogenized winding can be used for future acoustic and vibration calculations.
Keywords
- acoustics, damping, eigenfrequencies, eigenmodes, electric machine, experimental modal analysis, FE modal analysis, material modeling, vibrations, winding
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Electrical and Electronic Engineering
- Engineering(all)
- Mechanical Engineering
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2022 International Conference on Electrical Machines and Systems, ICEMS 2022. Institute of Electrical and Electronics Engineers Inc., 2022.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Influence of Concentrated Winding and Insulation on the Vibration Behavior of Electric Machines
AU - Gerlach, Martin Enno
AU - Langfermann, Markus
AU - Ponick, Bernd
N1 - Funding Information: Supported by: Federal Ministry of Economic Affairs and Energy on the basis of a decision by the German Bundestag.
PY - 2022
Y1 - 2022
N2 - The acoustic behavior of electric machines is defined by the electromagnetic forces and the structural-mechanical properties of the machine. The electromagnetic design of the machine determines which force waves occur beside the force waves of the fundamental spatial harmonic. If the force waves have a similar or an identical shape and frequency as an eigenpair of the stator (eigenfrequency and eigenmode), high acoustic noise emission is radiated into the surrounding area. Therefore, the determination of the mechanical eigenfrequencies and eigenmodes is just as important as the force calculation. However, the impact of different winding types and insulation techniques on the vibration behavior has not yet been analyzed in detail. In this work, the vibration behavior of a stator with a concentrated winding insulated with two different techniques is studied. Four different stator specimens are used: a blank stator, a stator with a loose winding, a stator with an impregnated winding and a stator with a potted winding. The stator specimens are measured by performing an experimental modal analysis and modeled using a 2D FE simulation. Equivalent material parameters are derived for the homogenized winding, consisting of the winding and the insulation. The resulting material parameters of the homogenized winding can be used for future acoustic and vibration calculations.
AB - The acoustic behavior of electric machines is defined by the electromagnetic forces and the structural-mechanical properties of the machine. The electromagnetic design of the machine determines which force waves occur beside the force waves of the fundamental spatial harmonic. If the force waves have a similar or an identical shape and frequency as an eigenpair of the stator (eigenfrequency and eigenmode), high acoustic noise emission is radiated into the surrounding area. Therefore, the determination of the mechanical eigenfrequencies and eigenmodes is just as important as the force calculation. However, the impact of different winding types and insulation techniques on the vibration behavior has not yet been analyzed in detail. In this work, the vibration behavior of a stator with a concentrated winding insulated with two different techniques is studied. Four different stator specimens are used: a blank stator, a stator with a loose winding, a stator with an impregnated winding and a stator with a potted winding. The stator specimens are measured by performing an experimental modal analysis and modeled using a 2D FE simulation. Equivalent material parameters are derived for the homogenized winding, consisting of the winding and the insulation. The resulting material parameters of the homogenized winding can be used for future acoustic and vibration calculations.
KW - acoustics
KW - damping
KW - eigenfrequencies
KW - eigenmodes
KW - electric machine
KW - experimental modal analysis
KW - FE modal analysis
KW - material modeling
KW - vibrations
KW - winding
UR - http://www.scopus.com/inward/record.url?scp=85146338189&partnerID=8YFLogxK
U2 - 10.1109/ICEMS56177.2022.9983424
DO - 10.1109/ICEMS56177.2022.9983424
M3 - Conference contribution
AN - SCOPUS:85146338189
SN - 978-1-6654-9303-1
BT - 2022 International Conference on Electrical Machines and Systems, ICEMS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th International Conference on Electrical Machines and Systems, ICEMS 2022
Y2 - 29 November 2022 through 2 December 2022
ER -