Details
| Titel in Übersetzung | Analytical determination of the turn-to-turn capacitances of a double-layer winding considering the intermediate slider for the prediction of the potential distribution in the stator winding of inverter-fed electrical machines |
|---|---|
| Originalsprache | Deutsch |
| Seiten (von - bis) | 117-124 |
| Seitenumfang | 8 |
| Fachzeitschrift | Elektrotechnik und Informationstechnik (e+i) (Print) |
| Jahrgang | 138 |
| Ausgabenummer | 2 |
| Frühes Online-Datum | 2 März 2021 |
| Publikationsstatus | Veröffentlicht - Apr. 2021 |
Abstract
The number of inverter-fed motors is increasing due to the good controllability of the motor and the low acquisition cost. The steep voltage slopes added to the winding terminals by the power semiconductors lead to an uneven distribution of the electric potential along the stator winding. Voltage peaks occur between the conductors which stress the insulation. The potential distribution can be modelled by means of equivalent circuit diagrams which take into account the parasitic capacitive coupling between the conductors. In this paper, a novel approach for the analytical determination of the turn-to-turn capacitances of a double-layer winding considering the intermediate slider is presented. Besides the geometry and the placement of the conductors, the influence of materials with different permittivities is also considered. The conductors are modelled by means of line charges which are discretely placed inside the electrodes, i.e., the conductors. The mutual capacitances are determined by means of Maxwell’s capacitance coefficients. The method is validated by FEM simulations for different geometries and materials.
Schlagwörter
- insulation stress, surge voltage distribution, traction motor, turn-to-turn capacitance, winding failure
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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in: Elektrotechnik und Informationstechnik (e+i) (Print), Jahrgang 138, Nr. 2, 04.2021, S. 117-124.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Analytische Ermittlung der Leiter-Leiter-Kapazität von Zweischichtwicklungen unter Berücksichtigung des Zwischenschiebers zur Vorausberechnung der Potenzialverteilung in der Ständerwicklung umrichtergespeister elektrischer Maschinen
AU - Stockbrügger, Jan Ole
AU - Hoffmann, Alexander
AU - Knebusch, Benjamin
AU - Dittmann, Jochen
AU - Ponick, Bernd
PY - 2021/4
Y1 - 2021/4
N2 - The number of inverter-fed motors is increasing due to the good controllability of the motor and the low acquisition cost. The steep voltage slopes added to the winding terminals by the power semiconductors lead to an uneven distribution of the electric potential along the stator winding. Voltage peaks occur between the conductors which stress the insulation. The potential distribution can be modelled by means of equivalent circuit diagrams which take into account the parasitic capacitive coupling between the conductors. In this paper, a novel approach for the analytical determination of the turn-to-turn capacitances of a double-layer winding considering the intermediate slider is presented. Besides the geometry and the placement of the conductors, the influence of materials with different permittivities is also considered. The conductors are modelled by means of line charges which are discretely placed inside the electrodes, i.e., the conductors. The mutual capacitances are determined by means of Maxwell’s capacitance coefficients. The method is validated by FEM simulations for different geometries and materials.
AB - The number of inverter-fed motors is increasing due to the good controllability of the motor and the low acquisition cost. The steep voltage slopes added to the winding terminals by the power semiconductors lead to an uneven distribution of the electric potential along the stator winding. Voltage peaks occur between the conductors which stress the insulation. The potential distribution can be modelled by means of equivalent circuit diagrams which take into account the parasitic capacitive coupling between the conductors. In this paper, a novel approach for the analytical determination of the turn-to-turn capacitances of a double-layer winding considering the intermediate slider is presented. Besides the geometry and the placement of the conductors, the influence of materials with different permittivities is also considered. The conductors are modelled by means of line charges which are discretely placed inside the electrodes, i.e., the conductors. The mutual capacitances are determined by means of Maxwell’s capacitance coefficients. The method is validated by FEM simulations for different geometries and materials.
KW - insulation stress
KW - surge voltage distribution
KW - traction motor
KW - turn-to-turn capacitance
KW - winding failure
UR - http://www.scopus.com/inward/record.url?scp=85102038746&partnerID=8YFLogxK
U2 - 10.1007/s00502-021-00863-8
DO - 10.1007/s00502-021-00863-8
M3 - Artikel
AN - SCOPUS:85102038746
VL - 138
SP - 117
EP - 124
JO - Elektrotechnik und Informationstechnik (e+i) (Print)
JF - Elektrotechnik und Informationstechnik (e+i) (Print)
SN - 0932-383X
IS - 2
ER -