Hubert Mitterhofer, Herbert Grabner, Wolfgang Amrhein,
"Comparison of Two and Four Pole Rotors for a High Speed Bearingless Drive"
: ISMB 2012, The 13th International Symposium on Magnetic Bearings, Arlington, Virginia, USA, 8-2012
Original Titel:
Comparison of Two and Four Pole Rotors for a High Speed Bearingless Drive
Sprache des Titels:
Englisch
Original Buchtitel:
ISMB 2012, The 13th International Symposium on Magnetic Bearings, Arlington, Virginia, USA
Original Kurzfassung:
Bearingless drives have found their way into several industrial applications such as pumps, fans and chemical process chambers. In contrast to these drives which run at speeds below 15.000rpm, the suitability of bearingless drives for high speed has first been demonstrated with a bearingless disk drive running up to 115.000rpm in previous works by the authors. This drive uses a permanent magnet rotor with a pole number of two in order to constrain iron losses and generate the highest rotor speed with a certain electrical frequency. Other certain criteria such as the rotordynamic behaviour, the radial bearing force or the torque capacity, however, might benefit from a higher pole number. Therefore, this paper will present the comparison of a two-pole rotor for the use in a hgh speed bearingless drive.
Forschungs-