A current-observer-based induction motor speed sensorless control and use of DC link current

We have proposed a current observer-based speed sensorless vector control system which is composed in a rotating reference frame. The characteristic improvement of this system is discussed by taking into account observer gain. The stability of the system has been investigated by the trajectories of...

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Bibliographic Details
Published in2012 International Symposium on Power Electronics, Electrical Drives, Automation and Motion pp. 213 - 218
Main Authors Mineo Tsuji, Fujin Xu, Tsuruda, J., Hamasaki, S., Yamada, E.
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE 01.06.2012
Subjects
current observer
DC link current
induction motor
Induction motors
Iron
Machine vector control
observer gain
Observers
Sensorless control
sensorless vector control
Stability analysis
Trajectory
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Summary:We have proposed a current observer-based speed sensorless vector control system which is composed in a rotating reference frame. The characteristic improvement of this system is discussed by taking into account observer gain. The stability of the system has been investigated by the trajectories of poles and zeros. The effectiveness of the proposed system has been investigated by experimentation. Furthermore, a speed sensorless system in which a DC link current sensor is only used without phase currents sensors is proposed and discussed.
ISBN:9781467312998
1467312991
DOI:10.1109/SPEEDAM.2012.6264429