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Sensorless Control of Permanent Magnet Synchronous Motors based on Finite-Time Robust Flux Observer

Abstract : A sensorless control algorithm is developed based on novel finite-time robust flux observer for the non-salient permanent magnet synchronous motor (PMSM). Total flux equality and motor model are used to find the linear regression-like model with respect to the flux. Applying dynamic regressor extension and mixing method, we obtain two independent scalar equations and construct a finite-time flux observer. The flux estimate is used to reconstruct the rotor position and velocity with well-known trigonometric relation and phase-locked loop observer, respectively. To complete a sensorless control design, we pass these estimates to standard field orient control. The efficiency and robustness of the proposed approach are demonstrated through the set of numerical simulations.
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Submitted on : Wednesday, October 20, 2021 - 10:43:06 AM
Last modification on : Sunday, June 26, 2022 - 3:16:44 AM

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Anton Pyrkin, Alexey Bobtsov, Romeo Ortega, Alexey Vedyakov, Dmitry Cherginets, et al.. Sensorless Control of Permanent Magnet Synchronous Motors based on Finite-Time Robust Flux Observer. 21st IFAC World Congress, Jul 2020, Berlin, France. pp.9270-9275, ⟨10.1016/j.ifacol.2020.12.2379⟩. ⟨hal-03388006⟩

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