Rezaei, Esmail, Ebrahimi, Mohammad (2010). Simultaneous Estimation of Speed and Rotor and Stator Resistance in Induction Machines at Motoring and Generating Conditions. , 10(2), 43-59.
Esmail Rezaei; Mohammad Ebrahimi. "Simultaneous Estimation of Speed and Rotor and Stator Resistance in Induction Machines at Motoring and Generating Conditions". , 10, 2, 2010, 43-59.
Rezaei, Esmail, Ebrahimi, Mohammad (2010). 'Simultaneous Estimation of Speed and Rotor and Stator Resistance in Induction Machines at Motoring and Generating Conditions', , 10(2), pp. 43-59.
Rezaei, Esmail, Ebrahimi, Mohammad Simultaneous Estimation of Speed and Rotor and Stator Resistance in Induction Machines at Motoring and Generating Conditions. , 2010; 10(2): 43-59.

Simultaneous Estimation of Speed and Rotor and Stator Resistance in Induction Machines at Motoring and Generating Conditions

The Modares Journal of Electrical Engineering
Article 4, Volume 10, Issue 2, 2010, Pages 43-59    PDF (843.23 K)
Authors
Esmail Rezaei; Mohammad Ebrahimi*
Isfahan University of Technology
Abstract
Most of the methods that have been proposed for speed estimation of induction machines require the rotor and the Stator resistance to change in the normal operating range. On the other hand, estimation of the rotor resistance requires rotor speed. In this paper, after studying conditions for simultaneous estimation of rotor speed and rotor resistance, a method for simultaneous estimation of rotor speed, rotor resistance and stator resistance is proposed. In this method, an additional frequency component is injected to the reference flux and Fast Fourier Transform is used to estimate rotor speed and rotor resistance. Stator resistance is estimated from estimated stator flux using a fuzzy estimator. Finally, effectiveness of the sensorless speed controlled induction machine drive with simultaneous rotor and stator resistance estimation has been verified with simulation results under various operating conditions, especially at low speed and generating conditions.
Keywords
Direct Vector Control; Stator Resistance Estimation; Induction Machine; Speed Sensorless; Rotor Resistance Estimation
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