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Conception d'entrainement multimachines multi-convertisseurs à haut niveau de fiabilité fonctionnelle

Abstract : In airplanes and launch vehicles, hydraulics, mechanical and pneumatic systems are progressively being replaced by electric systems for technical and industrial reasons. However, these new electric systems have to take into account the economical and weight reliability constraints of the aeronautics industry, ensuring the required reliability. Therefore, novel high reliability multi-machine and multi-converter topologies are compared to standard structures looking forward to find solutions that can be industrially implemented. Then, series-coupled machine topologies were chosen for this work. The series-coupling mutualizes the inverter legs, reducing their number, and increases the total electrical resistance of the system. As a consequence, the peak-current after the occurrence of certain faults is reduced, but the total copper losses are higher. In order to independently control the series-coupled machines, it is highlighted the reason why the number of phases must be higher than 3 and with a special electric coupling that permutes the machine’s phases. A new patented topology is deeply analyzed with experimental tests. After a validation of the studied system, more complex control strategies and control reconfiguration after a fault are also implemented in order to evaluate the potential improvements on the system performance in degraded mode. Simulation and experimental results were used on this study. For this analysis the dimensioning power of the inverter, the copper losses and the torque ripple, all of them in degraded mode, are the compared criterions.
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Submitted on : Wednesday, August 29, 2018 - 12:19:07 PM
Last modification on : Wednesday, September 21, 2022 - 3:24:44 PM


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  • HAL Id : tel-01767950, version 2


Tiago José dos Santos Moraes. Conception d'entrainement multimachines multi-convertisseurs à haut niveau de fiabilité fonctionnelle. Génie des procédés. Ecole nationale supérieure d'arts et métiers - ENSAM, 2017. Français. ⟨NNT : 2017ENAM0026⟩. ⟨tel-01767950v2⟩



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