V. Bahrs, M. Staggat, L. Enghardt

Decreasing green-house gas emissions and thus reducing the impact on climate warming is one of the biggest challenges in modern aviation industry. Significantly emission reduction for an aircraft will only be possible with novelty propulsion systems. Fully or partially electrified topologies represent one category of novel aircraft propulsion systems. These new powertrain architectures need to be designed from scratch and require a detailed theoretical investigation. To analyse the potential of different powertrain topologies a modelling of the electrified components has to be done. A central component of electrified propulsion is an electric machine, which transforms electrical into mechanical power. The present study introduces an analytical model for the sizing of a permanent magnet synchronous electric machine. The analytical character of the model allows fast and little computationally intensive calculations and is therefore optimal for fundamental considerations about new electrified aircraft powertrain topologies. The major benefit of the presented model is the linking of the sizing process to the efficiency calculation of the electric machine. Among the most important geometric parameters of the motor the model also accounts for the thermal limitations of the machine. Thus, it is possible to size the volume, mass and efficiency of the machine simultaneously.

Deutscher Luft- und Raumfahrtkongress 2022, Dresden

Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2022

Conference Paper

englisch

21,0 x 29,7 cm, 13 Seiten

urn:nbn:de:101:1-2022121612550836042193

10.25967/570099

Electric Machine Sizing, Analytical Model, PMSM, Air Cooled, Electrified Aircraft

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Bahrs, V.; Staggat, M.; Enghardt, L. (2022): Analytical Model for Electric Machine Sizing in Electrified Aviation. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/570099. urn:nbn:de:101:1-2022121612550836042193.

16.12.2022