Title :
Speed sensorless stator flux-oriented control of induction machine in the field weakening region
Author :
Shin, Myoung- Ho ; Hyun, Dong- Seok
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea
fDate :
6/23/1905 12:00:00 AM
Abstract :
In a conventional speed sensorless stator flux-oriented (SFO) induction machine drive system, the estimated speed is delayed in transients by the use of a low pass filter. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of the estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly the speed by using a Kalman filter. The proposed method is verified by simulation and experiment with a 5-hp induction motor drive
Keywords :
angular velocity control; induction motor drives; machine vector control; magnetic flux; magnetic variables control; parameter estimation; stators; 5 hp; Kalman filter; field weakening region; induction motor drive; low pass filter; speed estimation; speed sensorless stator flux-oriented control; Delay estimation; Electronic mail; Frequency estimation; Inductance; Induction machines; Low pass filters; Sensorless control; Stators; Torque; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954280
