Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
E. Schmidt, M. Hofer:
"3D Voltage Driven Finite Element Analyses of Eccentric Rotor Positions of a Novel Hybrid Radial Active Magnetic Bearing";
Poster: Conference on the Computation of Electromagnetic Fields COMPUMAG,
Florianopolis, Brazil;
22.11.2009
- 26.11.2009; in: "Proceedings of the 17th Conference on the Computation of Electromagnetic Fields (COMPUMAG)",
(2009),
S. 1
- 5.
Kurzfassung englisch:
The paper discusses electromagnetic 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. Thus, 3D finite element analyses are carried out to accurately obtain the parameters such as inductances and electromagnetic forces. In order to finally utilize a position sensorless control algorithm for the hybrid magnetic bearing, the dependence of the electromagnetic parameters on the rotor position is of great interest.
Consequently, special attention will be given to the modelling of various eccentric rotor positions yielding a fast computation environment suitable for the prototype design.