Title: Fuzzy fault tolerant control of an induction motor

Authors: Samira Benaicha, Rachid Nait-Said, Fatiha Zidani, Mohamed-Said Nait-Said

Addresses: LSPIE Laboratory, Electrical Engineering Department, Faculty of Engineering, University of Setif, Setif 19000, Algeria. ' LARPI Laboratory, Health and Safety Engineering Institute, University of Batna, Rue Med El-Hadi Boukhlouf, Batna 05000, Algeria. ' LSPIE Laboratory, Electrical Engineering Department, Faculty of Engineering, University of Batna, Rue Med El-Hadi Boukhlouf, Batna 05000, Algeria. ' LSPIE Laboratory, Electrical Engineering Department, Faculty of Engineering, University of Batna, Rue Med El-Hadi Boukhlouf, Batna 05000, Algeria

Abstract: This paper deals with a fuzzy decision system dedicated to degraded mode control. The defect refers to a mechanical sensor, in our case the speed sensor failure. If a defect appears at the speed sensor level, the proposed approach allows an automatic reconfiguration system. Using fuzzy logic technique, two types of control are used to illustrate the transition from one control to another. Field-oriented control and direct torque control are investigated. Simulation tests have been carried out on a 4-kW induction motor drive to evaluate the performance of the fuzzy decision system.

Keywords: induction motors; direct torque control; field-oriented control; fault tolerant control; fuzzy logic; fuzzy control; speed sensors; sensor failure.

DOI: 10.1504/IJMIC.2008.021093

International Journal of Modelling, Identification and Control, 2008 Vol.4 No.2, pp.160 - 167

Available online: 03 Nov 2008 *

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