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Design of a Robust Stable Flux Observer for Induction Motors
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 Title & Authors
Design of a Robust Stable Flux Observer for Induction Motors
Huh, Sung-Hoi; Seo, Sam-Jun; Choy, Ick; Park, Gwi-Tae;
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This paper presents a robustly adaptive flux observer for speed-sensorless induction motor control. The proposed approach employs additional robustifying signals to cope with the parametric uncertainties instead of designing an estimator, which has been normally used in power electronic drives. For that, the sliding-mode like adaptive controls are designed and their gain parameters are determined so that the observer dynamics are stable in the sense of Lyapunov, and furthermore they can guarantee the robustness against parametric uncertainties in induction motor systems. Estimated rotor speed is to be used to generate feedback control signal for the speed sensorless vector control system. To show the validity and efficiency of the proposed system, simulation results are presented.
Adaptive Control;Uncertainty;Induction Motor Control;Robust Control;
 Cited by
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