Common-Mode Impedance of an Electric Motor and the Impact of Material and Geometry Uncertainties
Artikel i vetenskaplig tidskrift, 2024

We compute the common-mode impedance of an electric motor with hairpin conductors. We use a 2D model of the cross-section of the electric motor, where the per-unit-length parameters are computed by the finite element method (FEM). These results are then used in a transmission line model aligned with the motor axis, which gives an approximate 3D model with favorable computational cost. Given this model, we study the impact on the common-mode impedance given uncertainties in the material and geometry description of the motor's cross-section. The results are useful for the understanding of uncertainties associated with manufacturing, temperature, aging, et cetera and how such uncertainties influence the EMC behavior in electric propulsion systems that are ubiquitous in the electrification of the transportation system.

transmission line equations

electric propulsion

finite element method

common-mode impedance

electric motor

Författare

Simon Stenmark

Chalmers, Elektroteknik, Signalbehandling och medicinsk teknik

Thomas Rylander

Chalmers, Elektroteknik, Signalbehandling och medicinsk teknik

Matthys M Botha

Universiteit Stellenbosch

Jan Carlsson

Provinn AB

Proceedings of the International Symposium on Electromagnetic Compatibility, EMC Europe

23250356 (ISSN) 23250364 (eISSN)

2024 895-900

Ämneskategorier (SSIF 2011)

Annan elektroteknik och elektronik

DOI

10.1109/EMCEurope59828.2024.10722688

Mer information

Senast uppdaterat

2025-01-09