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Journal > TELKOMNIKA Indonesian Journal of Electrical Engineering > Evaluation of Speed and Torque Estimations for the EKF-based Direct Torque Control in Induction Machines

 

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TELKOMNIKA Indonesian Journal of Electrical Engineering
Vol 12, No 11: November 2014
Evaluation of Speed and Torque Estimations for the EKF-based Direct Torque Control in Induction Machines
Alsofyani, Ibrahim Mohd ( Universiti Teknologi Malaysia)
Nik Idris, Nik Rumzi ( Universiti Teknologi Malaysia)
Alamri, Y.A. ( Universiti Teknologi Malaysia)
Wen Yao, Low ( Universiti Teknologi Malaysia)
A. Anbaran, Sajjad ( Universiti Teknologi Malaysia)
Article Info   ABSTRACT
Published date:
01 Nov 2014
 
Accurate estimations of unmeasurable variables are required for increasing the performance of sensorless induction motor drives. This can be achieved if the required variables are accurately estimated with a well-established observer.  The paper presents an extended Kalman filter- based direct torque control to investigate the estimations of speed and torque under challenging rotor and stator resistor and load variations at low and high speed regions. In all investigated scenarios, the speed and torque estimation showed good robustness against perturbations and their errors have remained within acceptable error bands.
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