Internship – Modelisation, Control and Simulation of a hybrid electric traction drive

SuperGrid Institute

Posted 1 month ago

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.

As a multi-disciplinary research centre 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:

General Context

In the railway sector – particularly electric trains – the trend is towards optimizing energy consumption by reducing the losses of the biggest consumer which is traction. When rolling stock are operated intensively (such as metros and trams), their operators are looking for ways to lower their energy bills.

It is in this context that the synchronous permanent magnet motor tends to replace the asynchronous motor because its energy efficiency is better: the rotoric flux is created naturally by the magnets whereas for the asynchronous squirrel cage machine, part of the current is used to generate this rotoric flux. Moreover, for the same power, the synchronous motor is lighter and more compact.

However, the synchronous motor has disadvantages over the asynchronous motor, particularly its short-circuit behavior and the fact that several synchronous engines cannot be supplied in parallel. In order to get the best out of the 2 motor types, an electric hybrid powertrain consisting of 2 motors was imagined.

Objectives / Missions

  • Model the electrical and mechanical part of the new traction drive in Simulink
  • Implement control for electric motors
  • Specify motor and converter sizing
  • Validate, thanks to the developed simulation, the good functioning of the innovative traction drive in nominal and degraded mode

The trainee will work under the supervision of an experienced railway engineer and with the support of teacher/researchers.

Candidate Profile

Master or engineering school student in the last year of his/her studies.

The internship requires a solid knowledge of electrotechnics, and control of rotating machines.

Knowledge of mechanics would bring added value to the application.

The student must have a taste for research.

He/she must be curious, autonomous, rigorous, proactive, open-minded and respectfully to others. Fluency in English and French is essential.

Other information

The application has to include the internship title, candidate name, CV and the most recent marks. Applications should be sent to the following address:

SuperGrid Institute is an equal opportunities employer. We respect and value the diversity of our employees, their backgrounds and their professional experience. We believe in equality and take affirmative action to ensure that discrimination has no place in our recruitment process nor our company.

Job Features

Job CategoryInternship
Contract TypeInternship
Duration6 months
Start DateMarch / April 2021

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