Modélisation et commande d’un système à trois phases indépendantes à double fonctionnalité : Traction Électrique et Chargeur Forte Puissance pour application automobile

Abstract : For an automotive application, a six leg-VSI connected to a three-phase open-end winding machine has the ability to offer a dual-function. In this case, an additional zero-sequence component, usually absent when a star-coupling is used, needs to be controlled. Firstly, a study, modeling and control of a multi-leg inverter are proposed. Secondly, control structures capable of handling the presence of zero-sequence components are investigated. The conventional control algorithms applied to the inverter are analyzed and an original vector control strategy, called Z-SVM, capable to cancel the high frequency zero-sequence current is developed. Finally, it is shown how the management of the zero-sequence components enhances the performance of the drive at low as well as at high-speed, corresponding on the areas of the torque-speed characteristics before and after flux weakening. The proposed solutions are validated on an experimental test bench consisting of a machine prototype especially developed for automotive application and powered by a six-leg inverter controlled by an FPGA-based device. The proposed strategies are compared in terms of performance and computational complexity.
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Paul Sandulescu. Modélisation et commande d’un système à trois phases indépendantes à double fonctionnalité : Traction Électrique et Chargeur Forte Puissance pour application automobile. Autre. Ecole nationale supérieure d'arts et métiers - ENSAM, 2013. Français. ⟨NNT : 2013ENAM0034⟩. ⟨pastel-00912564⟩

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