Title :
EKF based sensorless direct torque control of IMs in the low speed range
Author :
Barut, Murat ; Bogosyan, Seta ; Gokasan, Metin
Author_Institution :
Dept. Electr. & Comput. Eng., Alaska Univ., Fairbanks, AK, USA
Abstract :
This study aims to improve the performance of the speed sensorless direct-torque control (DTC) of induction motors (IMs), specifically in low and zero speed operation. To this aim, the estimation of the stator resistance is performed using an extended Kalman filter based estimator, which also performs the estimation of the stator flux, angular velocity and load torque. Simulation results demonstrate a good performance and robustness.
Keywords :
Kalman filters; angular velocity control; induction motors; machine control; nonlinear filters; robust control; stators; torque control; angular velocity; extended Kalman filter; induction motors; load torque; speed sensorless direct-torque control; stator flux; stator resistance; Angular velocity; Induction motors; Mechanical sensors; Observers; Sensor systems; Sensorless control; State estimation; Stators; Temperature sensors; Torque control;
Conference_Titel :
Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on
Conference_Location :
Dubrovnik, Croatia
Print_ISBN :
0-7803-8738-4
DOI :
10.1109/ISIE.2005.1529055
