Sensorless Induction Motor Drive Based on Model Ref-erence Adaptive System Scheme Utilizing a Fictitious Resistance
 
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1
Laboratory of Sciences and Techniques of Automatic control & computer engineering (Lab-STA),
2
Institut Supérieur des Etudes Technologiques de Bizerte, Route Menzel Abderrahmen – Zarzouna 7021 Bizerte، 7021, Tunisia.
3
Institut Supérieur des Etudes Technologiques de Sfax, Route de mahdia Km 2.5, 3099 El Bustan, Sfax, Tunisia
CORRESPONDING AUTHOR
Youssef Agrebi Zorgani   

Laboratory of Sciences and Techniques of Automatic control & computer engineering (Lab-STA),
 
Power Electronics and Drives 2020;5 (40)
 
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ABSTRACT
This article presents a novel development of an indirect stator flux-oriented controller for sensorless speed induction motor drive utilizing instantaneous and steady-state values, respectively, of a fictitious resistance symbolized as Rf. The dimen-sion of the fictitious quantity, in this context, is ohm which is the difference between the stator d- and q-axis fictitious resistances. However, from the measurement of the stator voltage and currents of the machine two independent re-sistance estimators are built. Therefore, the first is considered as a reference model of the Induction Machine (IM) and the second is considered as an adjustable model. Then The error between the states of the two models, is used to drive a suitable adaptation mechanism that generates the estimation of the speed, for the adjustable model. Furthermore, the structure of the proposed estimator is free from stator resistance and eliminates the requirement of any flux computation. All the detailed simulation study is carried out in MATLAB/Simulink, to validate the proposed method and to highlight the robustness and the stability of the proposed Model Reference Adaptive System estimator
eISSN:2543-4292
ISSN (print):2451-0262