Sensorless passivity based control for induction motor via an adaptive observer

Ramzi Salim; Abdellah Mansouri; Azeddine Bendiabdellah; Sofyane Chekroun; Mokhtar Touam

doi:10.1016/j.isatra.2018.10.002

Sensorless passivity based control for induction motor via an adaptive observer

ISA Trans. 2019 Jan:84:118-127. doi: 10.1016/j.isatra.2018.10.002. Epub 2018 Oct 8.

Authors

Ramzi Salim¹, Abdellah Mansouri², Azeddine Bendiabdellah³, Sofyane Chekroun⁴, Mokhtar Touam²

Affiliations

¹ Laboratoire d'Automatique et Analysis des Systems (L.A.A.S), Department of Electrical Engineering, Ecole Nationale Polytechnique-Maurice Audin-Oran. BP 1523 El' M'naouer, Oran, Algeria. Electronic address: ramzisalim@ymail.com.
² Laboratoire d'Automatique et Analysis des Systems (L.A.A.S), Department of Electrical Engineering, Ecole Nationale Polytechnique-Maurice Audin-Oran. BP 1523 El' M'naouer, Oran, Algeria.
³ Laboratoire de Développement des Entrainements Electriques (LDEE), University of Sciences and Technology Mohamed Boudiaf, Oran, Alegria; El M'naouer, BP 1505, Bir El Djir 31000, Oran, Algeria.
⁴ Department of Electrical Engineering, University Mustapha Stambouli of Mascara. BP.305, Route El Mamounia, 29000 Mascara, Algeria.

PMID: 30318364
DOI: 10.1016/j.isatra.2018.10.002

Abstract

The work of this paper addresses the study and application of control strategies based on the passivity of a sensorless induction motor (IM) in order to guarantee a high performance operation and to increase reliability at a lower cost. This control approach based on the passivity or the energy formulation is generally simple and physically meaningful. It achieves the control objective by reshaping the system natural energy and then injecting a damping term. A full-order adaptive observer is also considered to estimate the IM rotor flux and mechanical speed. These estimated quantities are then used in the control scheme. The observer gain is synthesized in the way that it minimizes the instability zone in the regenerative mode to a line in the torque-speed plane. The control-observer set is tested on the trajectories of the various operating modes (motor mode, regenerating mode and low speed mode).

Keywords: Adaptive observer; Induction motor; Passivity control; Regenerating mode; Sensorless.