Intern Railway Electricity Networks

Location NL-Arnhem
Requisition ID
Business Area
Location Details
Position Type
Temporary Staff (Previously X: Students, Interns, Apprentices, Service Staff)

Local Unit & Position Description

The current 1.5 kV railway traction power supply is reaching its limits in the Netherlands as it creates large energy transport losses and has limited re-generative braking capacity. Moreover, as the frequency of trains is constantly increasing, the railway electricity network will need to be upgraded in the future to respond to the increasing power demand. For this reason, an upgrade to a 3 kV railway traction power supply is currently being considered. The upgrade to a 3 kV system would significantly reduce the energy transport losses and would also increase the maximum traction power consumption and re-generative braking capacity.


Focus of this project

-Evaluation of the possible technical solutions for the transformation of the existing 1.5 kV traction power supply into a 3 kV system.

- Literature review will first be performed in order to investigate the different technical solutions that could be applied. After collecting the most relevant technical solutions, each technical option will be evaluated.

- For each technical option, the main advantages and disadvantages will be addressed, and a cost and benefit analysis will be performed (both qualitative and quantitative analysis).

-After evaluating and comparing all the relevant technical concepts for the upgrade to a 3 kV system, one concept will be selected, based on the evaluation criteria set by the railway electricity network operators.


*After successful completion of the project, you will be considered for collaboration on a Master Thesis project. The selected technical solution will be the input for the case study of the modeling phase. Simulations will be performed to verify the functionality of the proposed concept.


Internship duration: 3-4 months

Starting date: September 25th

Position Qualifications

  • MSc student, preferably in Electric Power Engineering or Power Electronics track
  • Good understanding of power systems and (preferably) control of power electronic converters
  • Modeling experience in power system studies or power electronics will be a plus
  • Good communication skills
  • Good verbal and written communication skills in the English language
  • Open mindset (out of the box thinking) and creativity

Company & Business Area Description

DNV GL is a global quality assurance and risk management company. Driven by our purpose of safeguarding life, property and the environment, we enable our customers to advance the safety and sustainability of their business. Operating in more than 100 countries, our professionals are dedicated to helping customers in the maritime, oil & gas, power and renewables and other industries to make the world safer, smarter and greener.

Equal Opportunity Statement

DNV GL is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without regard to gender, religion, race, national or ethnic origin, cultural background, social group, disability, sexual orientation, gender identity, marital status, age or political opinion. Diversity is fundamental to our culture and we invite you to be part of this diversity!

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