Internship R&d Engineer - Villeurbanne, France - SuperGrid Institute

SuperGrid Institute
SuperGrid Institute
Entreprise vérifiée
Villeurbanne, France

il y a 3 semaines

Sophie Dupont

Posté par:

Sophie Dupont

beBee Recruiter
StageSHIP
Description

SuperGrid Institute brings together 180 employees, of 28 different nationalities who work together within a dynamic environment in the city of Lyon.

As an independent research and innovation centre, we are dedicated to developing technologies for the future power transmission system, the "supergrid", including HVDC & MVDC technologies.


General Context:


The massive integration of Renewable Energy Sources (RES) in the future will most probably require the development of MVDC networks at different scales of extent.

One of the building blocks of such networks are DC DC converters required adapt to the different levels.

To achieve the high voltage, series connection of SiC MOSFETs is necessary[2], but this comes at the cost of increased common mode currents and fast degradation of solid insulation of Medium Frequency Transformers.

An emerging strategy is to employ Flying Capacitor Converters in a Quasi Two Level modulation. Simulation level studies have proven this converter [3], but not much is available on litterature on practical réalisations.


Benefits:

  • Remboursement des transports à 50%

Objectives / Missions:


The goal of the internship is to prototype a 10 kV - 250 kW Flying Capacitor Converter for Quasi Two Level Modulation based SiC MOSFET (1.7 kV or 3.3 kV) and implement it in our test platforms.

The intern must prototype the PCB for power MOSFETs and for the gate drivers on Altium.


Tasks:


  • Literature review
  • LTspice Simulation of Flying Capacitor Converter
  • Convert the design of the existing gate driver on Altium
  • Prototyping the converter
  • Sizing of Flying Capacitors
  • Consideration of Insulation constraints
  • Instrumentation (voltage and current measurement)
  • Test and validation of the Converter

What we have to offer:


  • You will be joining an institute for energy transition, a promising and stimulating field of activity,
  • A young, dynamic working environment,
  • Diverse, international teams (+25 nationalities),
  • Contribution to meal expenses (company restaurant)
  • Sports club within the company (onsite yoga, football, running, etc.)
  • Use of selfservice company bicycles
VILLEURBANNE (LYON)

6 months, beginning of september 2024

1+ years
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