Kheldoun, AissaKhodja, Djalal EddineRefoufi, L.2015-06-172015-06-1720119th WSEAS International Conference on Circuits, Systems, Electronics, Control and Signal Processing, CSECS'10; Vouliagmeni, Athens; Greece; 29 December 2010 through 31 December 2010; Code 85140978-960474262-2https://dspace.univ-boumerdes.dz123456789/1976In field-oriented controlled induction motor drives, the instantaneous rotor speed is measured using whether sensors or estimators. Since the basic Kalman filter is a state observer, its use in vector controlled schemes has received much attention. However, these schemes are based on the assumption that the existence of iron loss in the induction motor may be neglected. The paper shows the effect of iron loss on the extended Kalman filter performance that is designed on the basis of the classical dq model. Original simulation results are carried out to demonstrate this effect as well as the effectiveness of the suggested approach to minimise the speed estimation error without modifying the EKF's algorithm.enCore lossField oriented controlInduction motor driveIron lossRotor speedSensorlessSimulation resultSpeed estimationSpeed estimation errorState observerElectric drivesEstimationExtended Kalman filtersMagnetic coresPosition controlSignal processingInduction motorsField-oriented controlArticle