Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
E. Schmidt, M. Hofer:
"3D Finite Element Analyses of a Hybrid Magnetic Bearing with Various Eccentric Rotor Positions";
Vortrag: International Symposium on Electric and Magnetic Fields,
Mondovi, Italy;
26.05.2009
- 29.05.2009; in: "Proceedings of the 8th International Symposium on Electric and Magnetic Fields",
(2009),
4 S.
Kurzfassung englisch:
The paper discusses the steady-state parameters of a novel arrangement of a permanent magnet biased radial active magnetic bearing with three poles.
The control currents of the three poles produce a heteropolar distribution of the magnetic field whereas the permanent magnets cause a homopolar configuration of the magnetic field. Therefore, 3D finite element analyses have to be used to accurately obtain the steady-state parameters such as inductances and electromagnetic forces. With the intent of finally using a position-sensorless control algorithm for the hybrid magnetic bearing, in particular the dependence of the electromagnetic parameters on the rotor position is of great interest. Thus, special attention has to be given to the modelling of different eccentric rotor positions in order to achieve a fast computation environment.