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 center, we are dedicated to developing technologies for the future power transmission system, the supergrid , including HVDC & MVDC technologies.
As a multi-disciplinary research center with advanced simulation capabilities & multiple test platforms, including numerous associated laboratories, SuperGrid Institute uses its comprehensive expertise to provide a wide range of services and solutions to support our customers in developing power systems, equipment and components.
We specialise in system architecture and work on ensuring network security and stability while allowing for the integration of intermittent renewable energy sources.
Find out more by visiting our website : www.supergrid-institute.com
Program Power Electronics & Converters addresses power electronic converters for MVDC & HVDC. In particular, we develop AC-DC and DC-DC power converters, medium frequency transformers, power inductors and high voltage power electronics building blocks.
This internship will focus on the validation of electromagnetic and thermal models applied to medium frequency transformers and power inductors.
Magnetic core losses in a medium frequency context have to be accurately known, even with a DC bias. Medium frequency power conversion raises issues such as additional losses in the transformers and in the inductors conductors due to skin and proximity effects.
Medium frequency transformers are subject to high loss density and thus require accurate thermal sizing and usually dedicated cooling devices.
Various technological solutions exist in order to cope with those phenomena. SuperGrid Institute has developed models adapted to those solutions and now wants to validate them experimentally.
Objectives / Missions
Validation of previously developed electromagnetic and thermal models applied to medium frequency transformer and power inductor windings.
The considered models encompass :
Experimental works will be based on electrical sources for the sample excitation and heat generation, as well as on thermocouples and thermal camera for thermal measurements.
Data processing will be done using Matlab.
Work definition :
The content of the internship may be adjusted depending on the work progress.
Master or engineering school student in 5th year of his / her studies or in gap year. The student must have a good knowledge in electrical and magnetic systems but also in physics.
The candidate must show interest in experimental work as well as in research subjects and modelling (analytical and numerical).
He / she must be familiar with the basics of scientific programming (Matlab). Autonomy, self-discipline and curiosity will be appreciated.
Fluency in English is welcome.