This paper describes a real-time speed estimation of an
induction motor (IM) based on the extended Kalman Filter
(EKF). The algorithm was implemented on the
TMS320F28335 digital signal processor (DSP), which is
capable to perform complex mathematical transformations.
The proposed vector control system was firstly modelled in
MATLAB Simulink and then verified using Code Composer
Studio (CCS). An improved rotor flux estimator is
introduced, which makes the presented estimation
technique similar to the MRAS-based estimators.