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Design of a Fault-Tolerant Controller Based on Observers for a PMSM Drive

Ahmad Akrad 1 Mickaël Hilairet 1 Demba Diallo 1
1 COCODI - Equipe Conception, Commande et Diagnostic
LGEP - Laboratoire de génie électrique de Paris
Abstract : This paper presents a specific controller architecture devoted to obtain a permanent-magnet synchronous motor (PMSM) drive that is robust to mechanical sensor failure. In order to increase the reliability which is a key issue in industrial and transportation applications (electric or hybrid ground vehicle or aerospace actuators), two virtual sensors (a two-stage extended Kalman filter and a back-electromotive-force adaptive observer) and a maximum-likelihood voting algorithm are combined with the actual sensor to build a fault-tolerant controller (FTC). The observers are evaluated through simulation and experimental results. The FTC feasibility is proved through simulations and experiments on a 1.1-kW PMSM drive.
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Submitted on : Wednesday, June 27, 2012 - 10:54:11 AM
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Ahmad Akrad, Mickaël Hilairet, Demba Diallo. Design of a Fault-Tolerant Controller Based on Observers for a PMSM Drive. IEEE Transactions on Industrial Electronics, Institute of Electrical and Electronics Engineers, 2011, 58 (4), pp.1416-1427. ⟨10.1109/TIE.2010.2050756⟩. ⟨hal-00712482⟩



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