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Contribution à l'identification, l'estimation et la commande de Moteurs Synchrones à Aimants Permanents (MSAP)

Romain Delpoux 1, 2
2 NON-A - Non-Asymptotic estimation for online systems
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
Abstract : This work deals with sensorless identification, estimation and control for PMSM.In a first phase, the PMSM modelling is realized in the fix a-b frame. This model is then rewritten in the d-q frame, commonly used for rotating machine and a new frame called f-g, advantageous in sensorless applications. It presents similar properties than the d-q frame, without the use of mechanical sensor. In order to experimentally validate the model, an identification using off-line least squares algorithm in the presence of sensors, is performed. This approach provides a set of nominal parameters. A similar procedure is applied to the motor without mechanical sensors in the f-g frame. Since the sensorless control laws are highly dependent on the parameters, it is important to be able to identify the parameters without mechanical sensor. The control design is realized based on second order sliding mode, it ensures the stability despite parametric uncertainties or external perturbations. A sliding mode observer is designed to estimate the acceleration, necessary to compute the sliding variable. Based on voltages and currents, the design of observers allows removing the mechanical sensors. The position and velocity estimation are then used for the control. The experimental results are very promising. Although the reached velocity is lower than the velocity reached using sensors, the trajectory tracking provides a good accuracy of the trajectory tracking. Finally, on-line parameters identification algorithms have been developed. The identification using algebraic method compared to the one realized with sliding modes
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Romain Delpoux. Contribution à l'identification, l'estimation et la commande de Moteurs Synchrones à Aimants Permanents (MSAP). Autre. Ecole Centrale de Lille, 2012. Français. ⟨NNT : 2012ECLI0022⟩. ⟨tel-00771113v2⟩



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