Characteristic improvement of a novel current observer based induction motor speed sensorless system

Author

Tsuji, Mineo ; Xu, Fujin ; Tsuruda, Yasutaka ; Hamasaki, Shin-ichi ; Yamada, Eiji

Author_Institution

Dept. of Electr. & Electron. Eng., Nagasaki Univ., Nagasaki, Japan

fYear

2010

fDate

14-16 June 2010

Firstpage

1502

Lastpage

1507

Abstract

We have proposed a current observer-based induction motor 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 iron loss, stator resistance identification, current low-pass filter and speed estimation low-pass filter. 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 digital simulation and experimentation.

Keywords

electric current control; induction motors; observers; sensorless machine control; stability; velocity control; current low-pass filter; current observer; induction motor; sensorless vector control; speed control; speed estimation low-pass filter; stator resistance identification; system stability; Frequency estimation; Induction motors; Iron; Low pass filters; Machine vector control; Poles and zeros; Pulse width modulation; Stability; Stators; Zirconium; current observer; iron loss; parameter identification; sensorless vector control; stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on

Conference_Location

Pisa

Print_ISBN

978-1-4244-4986-6

Electronic_ISBN

978-1-4244-7919-1

Type

conf

DOI

10.1109/SPEEDAM.2010.5542401

Filename

5542401