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Home > Thèses et HDR > Thèses en 2024

15/02/2024 - Pierre LE METAYER

by Arnaud Lelevé, Laurent Krähenbühl - published on , updated on

Pierre LE METAYER will defend his PhD on February 15th, 2024 at 10AM.
Place : amphitheatre Émilie du Châtelet of the Marie Curie Library at INSA Lyon

Unidirectional High-Ratio DC-DC Converter for Renewable Energy Sources.

Jury :
Rapporteurs :
- Sibylle Dieckerhoff, Professeur TU Berlin
- Torbjörn Thiringer, Professeur Chalmers University of Technology

Examinateurs :
- Ilknur Colak, Docteur Schneider Electric
- Philippe Ladoux, Professeur Université de Toulouse

Encadrement :
- Cyril Buttay, Directeur de recherche CNRS
- Drazen Dujic, Associate professor EPFL
- Piotr Dworakowski, Docteur SuperGrid

Abstract :
Driven by the need to decarbonise energy production, the integration of renewable energy sources into the power grid has become an important topic in modern electrical engineering. The use of medium voltage direct current (MVDC) collection network is currently being researched as it is expected to bring higher energy efficiency, among other potential benefits. A missing piece to connect low voltage DC-native renewable energy sources to an MVDC network is the high ratio step-up DC-DC converter. This dissertation focuses on the DC-DC converter for PV application, addressing the range of topics extending from the definition of the requirements that such a DC-DC converter must meet to proposals for hardware implementations that enable it, via the selection of the most suitable topology and the adaptation of its control. A representative scale 1.2 kV - 6.6 kV 83 kW prototype is designed, implemented and tested.

Keywords: DC-DC converter, MVDC, Medium Voltage, Photovoltaic