Thesis in e-mobility: FEM simulation of electromagnetic properties

Fast-switching power modules in the electric drivetrain of an electric vehicle cause unwanted parasitic effects that can negatively affect electromagnetic compatibility and bearing life. In the thesis, a simulation model is used to work out the influence of various components and compare it with measurements. A prerequisite is a non-disclosure agreement signed by the university supervisor and proof of enrollment.

• Literature research on parasitic currents in inverter-fed systems (especially bearing currents)
• Building and modeling an electromagnetic FEM model of the electrical machine and its parasitic currents
• Deriving an equivalent circuit of parasitic currents
• Parameterizing the equivalent circuit using FEM simulation
• Extending the system simulation model
• Analyzing the overall system using the system simulation model
• Documenting and presenting the results

• Master's or Diplom studies in electrical engineering, mechatronics, physics or a comparable degree program
• Experience with electromagnetic FEM simulation (ideally ANSYS)
• Good German and English skills, spoken and written
• Confident use of MS Office
• Initiative and a structured approach