50-$\hbox{N}\cdot\hbox{m}$/2500-W Bearingless Motor for High-Purity Pharmaceutical Mixing

@article{Warberger201250hboxNcdothboxm2500WBM,
  title={50-\$\hbox\{N\}\cdot\hbox\{m\}\$/2500-W Bearingless Motor for High-Purity Pharmaceutical Mixing},
  author={Bernhard Warberger and Remo Kaelin and Thomas Nussbaumer and Johann Walter Kolar},
  journal={IEEE Transactions on Industrial Electronics},
  year={2012},
  volume={59},
  pages={2236-2247}
}
In this paper, a novel bearingless motor (50 N·m /2.5 kW) for high-purity mixing applications is presented. The motor consists of a stator with concentrated windings and an exterior rotor with permanent magnets. The rotor is propelled and spatially suspended only by means of magnetic fields. This paper deals with the functionality and the mechanical setup of the new motor. Thereby, the optimization of the motor design is presented in detail. In order to evaluate the load of the bearingless… 

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