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Titre: | Enhanced sensorless predictive direct power control for PWM rectifier with constant switching frequency under grid disturbances |
Auteur(s): | Djabali, Sarah Ammar, Abdelkarim Kheldoun, Aissa |
Mots-clés: | Electric power system control Electric rectifiers MATLAB Power control Predictive control systems Pulse width modulation Rectifying circuits Software reliability |
Date de publication: | 2021 |
Editeur: | IEEE |
Collection/Numéro: | Proceedings of the 2021 9th International Conference on Systems and Control, Caen, France, November 24-26, 2021;pp. 411-416 |
Résumé: | This work presents a voltage sensorless predictive
direct power control strategy for PWM-rectifier. Firstly, the
line-voltages are estimated using Second-Order Generalized
Integrators (SOGI) coupled with Frequency Locked Loop
(FLL). SOGI are inherent noise rejectors and FLL provides
instantaneous tracking of the grid frequency. Their combination
offers high robustness against grid disturbances, distinctively:
harmonics distortion and frequency fluctuations. Secondly,
Model Predictive Control (MPC) with Finite Control Set (FCS)
attributes conceptual simplicity and higher accuracy than
conventional controllers but suffers from variable switching
frequency. In this paper, we propose MPC approach that solves
the switching frequency problem while maintaining the accu-
racy of FCS. Last, the decoupled control between active and
reactive powers of Direct Power Control (DPC) offers flexibility
of operation over variable power factors. The effectiveness and
reliability of the proposed approach are investigated through
simulation using MATLAB/SIMULINK software |
URI/URL: | DOI 10.1109/ICSC50472.2021.9666611 http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/7688 |
ISBN: | 978-166540782-3 |
Collection(s) : | Communications Internationales
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