Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
M. Schrödl, M. Hofer, W. Staffler:
"Extended EMF- and Parameter Observer for Sensorless Controlled PMSM-Machines at Low Speed";
Poster: European Conference on Power Electronics and Applications,
Aalborg, Denmark;
02.09.2007
- 05.09.2007; in: "Proceedings 12th European Conference on Power Electronics and Applications",
(2007),
ISBN: 9789075815108;
Paper-Nr. P.1-P.8,
8 S.
Kurzfassung englisch:
The paper describes an extended EMF- and parameter observer for sensorless controlled PMSMmachines.
Therefore a combination of INFORM-method and EMF-model is used. At low speed, the
reference position of the permanent magnet flux is calculated by INFORM-method and compared with
the permanent magnet flux provided by EMF-model. By transformation of the voltage equation into a
current-oriented reference frame, a 4th order state model is presented which provides the observed
stator resistance and stator inductance of the PMSM. A stability analysis results in a stable operation.
Measurement results of the extended EMF-and parameter observer at stationary operation point and in
dynamical operation are given.