Personne

Alexandre François Christe

Cette personne n’est plus à l’EPFL

Publications associées (12)

White paper on DC technologies for Switzerland’s electricity transmission and distribution

Mario Paolone, Drazen Dujic, Farhad Rachidi-Haeri, Zhaoyang Wang, Reza Razzaghi, Stefan Milovanovic, Alexandre François Christe, Milan Utvic

Existing AC power systems, established more than a century ago, are increasingly challenged by DC technologies, enabled by significant advancements in the power electronics and related scientific fields. Three major application areas for DC transmission ar ...

Work Package 3 of the SCCER-FURIES2019

Swiss Competence Center on Energy Research FURIES - Overview and Contributions in the Area of Power Electronics and Smart Grids

Mario Paolone, Drazen Dujic, Farhad Rachidi-Haeri, Reza Razzaghi, Stefan Milovanovic, Alexandre François Christe, Jin Wang, Milan Utvic, Mauro Carpita

This paper introduces a special session on results of the Swiss competence center on energy research FURIES that has been established in coordination with the Swiss Energy strategy 2050 with the specific aim to develop, promote and deploy power grid-relate ...

2019

Galvanically Isolated Modular Converter

Alexandre François Christe

The ever increasing penetration of renewable energy systems in the distribution grids will inevitably require profound changes in the grid infrastructure. One emerging direction, the medium voltage dc (MVdc) grids, is the cornerstone of this work. They are ...

EPFL2018

Virtual Submodule Concept for Fast Semi-Numerical Modular Multilevel Converter Loss Estimation

Drazen Dujic, Alexandre François Christe

During the design phase of a modular multilevel converter (MMC), an accurate loss evaluation of the submodule (SM) plays an important role. In this paper, a method based on the analytical description of the MMC key waveforms that allows to directly obtain ...

Institute of Electrical and Electronics Engineers2017

The design phase of a modular multilevel converter (MMC) needs to be supported by suitable tools for the submodule loss evaluation. This paper proposes a fast MMC cell loss calculation based on the virtual submodule (VSM) concept. Compared to other propose ...

VDE VERLAG GMBH, 20172017

When it comes to the computation / estimation of the switching losses in a multilevel converter, it is crucial to know the instantaneous value of the output current. If the average output current value is used instead, there is a non negligible error when ...

2017

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With the improvement in the power electronic technologies, medium voltage dc (MVDC) electrical distribution systems are being considered for on-shore and off-shore applications. These future MVDC electrical distribution systems are expected to provide the ...

2017

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This paper describes the electro-thermal design of a medium voltage modular multilevel converter prototype, from the submodule power semiconductor thermal requirements to the overall system level integration. The high number of semiconductors and capacitor ...

VDE VERLAG GMBH2016

Galvanically Isolated Modular Converter

Drazen Dujic, Alexandre François Christe

Direct current (DC) electrical grids are already a reality in low voltage (LV) telecom distribution systems and point-to-point high voltage DC transmission. Medium voltage (MV) domain, despite its big potential, still suffers from a lack of suitable conver ...

Inst Engineering Technology-Iet2016

Insulation Coordination for a Modular Multilevel Converter Prototype

Drazen Dujic, Alexandre François Christe, Émilien Luc Henri Coulinge

This paper provides a detailed overview of the dielectric design and insulation coordination applied to a medium voltage modular multilevel converter prototype. The complete system has ratings of 0.5 MVA and is designed for connection to a 10 kVdc supply w ...

Ieee2016

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