Mathematical models for simulating electric machines

Herbert De Gersem, Full professor, TU Darmstadt

New electric-machine designs are evaluated on the basis of a combination of behavioural, network and finite-element models. Thereby, the underlying electromagnetic and thermodynamic partial differential equations are discretised by finite-element methods. The material behaviour is embedded along nonlinear (and possibly hysteretic and temperature-dependent) material models. The interaction with power-electronics modules and further surrounding circuitry is taken into account by field-circuit coupling. The drive train is considered by an attached mechanical model. This talk aims at the construction of mathematical models for simulating electric machines, including a technical priorisation of the model features according to their relevance and computational cost.