Title :
A current-observer-based induction motor speed sensorless control and use of DC link current
Author :
Tsuji, Mineo ; Xu, Fujin ; Tsuruda, Jun ; Hamasaki, Shin-ichi ; Yamada, Eiji
Author_Institution :
Div. of Electr. Eng. & Comput. Sci., Nagasaki Univ., Nagasaki, Japan
Abstract :
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.
Keywords :
angular velocity control; electric current control; electric sensing devices; induction motors; machine vector control; observers; sensorless machine control; stability; DC link current control; DC link current sensor; current-observer-based induction motor speed sensorless vector control system; observer gain; pole trajectory; rotating reference frame; system stability; zero trajectory; Induction motors; Iron; Machine vector control; Observers; Sensorless control; Stability analysis; Trajectory; DC link current; current observer; induction motor; observer gain; sensorless vector control; stability analysis;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
978-1-4673-1299-8
DOI :
10.1109/SPEEDAM.2012.6264429
