Machine Model & Bearing Currents (MMBC)

Partner Call open until: January 31, 2025

Project Start: March 2025

Objectives

Investigate influence of electric machine, bearings and gearboxes on the Electromagnetic compatibility behavior. Create models and simulation procedures for Electromagnetic Interference (EMI).

Dekoratives Bild, Elektromotor dreht in hoher Geschwindigkeit

The electric machine and its bearings as well as the power inverter have severe impact on the Electromagnetic Compatibility (EMC) behavior of an e-axle. The goal of this project is to create models of these components and their behavior and bring them into a simulation environment. The results of these simulations allow to estimate Electromagnetic Interference (EMI) of the e-axle including the power inverter.

In the project, we intend to go for a frequency range from very low frequencies (few Hz) up to the hundred MHz range. Simulations will be compared to measurements and confidence intervals will be defined.

Expected results

  • Electrical models of the bearings and bearing currents
  • Electrical model of the machine
  • Simulations of an e-axle including power inverter
  • Comparison of simulations to measurements
  • Knowledge of the limits and shortcomings of the simulations

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