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, Next chapter concerns the validation of the analysis by real-time simulation and Hardware-In-the-Loop (HIL) to prepare the futur experimental M2DC experimentations using the L2EP MMC prototype

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, TWENTIES project final report

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, Etude d'un convertisseur DC-DC pour les réseaux haute tension à courant continu (HVDC) : modélisation et contrôle du convertisseur DC-DC modulaire multiniveaux (M2DC)

, Dans ce genre de réseau, les convertisseurs DC/DC sont nécessaires pour interconnecter ces réseaux. L'objectif de ce travail est donc d'étudier un convertisseur DC/DC pour des applications à haute tension et forte puissance. De nombreux convertisseurs DC/DC classiques existent, mais ne sont pas adaptés à ces niveaux de tension et puissance. Le volume et coût sont les points clés de l'étude pour l'industrialisation des structures dédiées aux réseaux HVDC. Parmi les structures identifiées, le convertisseur Modulaire Multiniveaux DC-DC (M2DC), récent et compact, a été finalement choisi. Le travail proposé développe l'étude du M2DC en régime établi et une modélisation en modèle moyen de ce convertisseur. Ensuite, des lois de contrôle sont proposées pour valider les analyses précédentes sur la base du principe de l'inversion du modèle. Le travail vise enfin à valider les analyses et le contrôle à l'aide de la maquette du Convertisseur Modulaire Multiniveaux (MMC) du L2EP. Pour cela, un dimensionnement du M2DC basé sur le MMC existant est proposé. Enfin, des simulations HIL (Hardware-In-the-Loop) valident les analyses et montrent la, DC/DC) pour les réseaux de transport à Courant Continu (HVDC) dans un contexte de réseau maillé de type Multi Terminaux DC (MTDC)

, A DC-DC power converter study for High Voltage Direct Current (HVDC) grid: Model and control of the DC-DC Modular Multilevel Converter (M2DC)

, A lot of DC/DC converters have been studied and developed, but are not suitable for high voltage and great power constraints. Therefore, the objective of this work is the study of a DC/DC converter for high voltage and great power applications. For the potentially HVDC applications, the volume and costs are major criteria, This work is based on Multi Terminal Direct Current (MTDC) grids. In the MTDC grid, DC/DC converter stations are needed to connect different HVDC grids