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

fYear

2012

fDate

20-22 June 2012

Firstpage

213

Lastpage

218

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on

Conference_Location

Sorrento

Print_ISBN

978-1-4673-1299-8

Type

conf

DOI

10.1109/SPEEDAM.2012.6264429

Filename

6264429