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Communication Dans Un Congrès Année : 2016

Linear flux observers for induction motors with quadratic Lyapunov certificates

Résumé

We propose a full order Linear Time-Varying (LTV) Luenberger observer for the rotor flux estimation of an induction motor. Introducing a suitable reduced-order Linear-Time-Invariant (LTI) system that is always observable and controllable, we show that any arbitrary LTI design and its quadratic Lyapunov certificates can be lifted to the higher-order original LTV dynamics obtaining the same certificates. As a result, we show that arbitrary global uniform exponential bounds can be imposed on the estimation error, regardless of the rotor speed. Then applying a suitable order reduction technique, we build a reduced observer providing the same guarantees. We also establish interesting connections between these reduced observers and existing non-adaptive observers. We also show applications of our results when wanting to minimize the effects of measurement noise on the estimates.
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Dates et versions

hal-01851145 , version 1 (29-07-2018)

Identifiants

Citer

A. Sferlazza, Luca Zaccarian. Linear flux observers for induction motors with quadratic Lyapunov certificates. IEEE 25th International Symposium on Industrial Electronics (ISIE 2016), Jun 2016, Santa Clara, United States. 9p., ⟨10.1109/ISIE.2016.7744884⟩. ⟨hal-01851145⟩
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