Thesis Work - Compare efficiency of 3-level NPC inverter with 2-level inverter i Göteborg

Thesis Worker at Volvo Cars

Welcome to explore the world of Volvo Cars by writing your thesis with us! As a thesis worker in our organization you are supported by a supervisor who follows you during your project. All thesis projects are arranged in business critical areas and therefore you will be able to contribute to our company purpose – providing freedom to move in a safe, sustainable and personal way – from day one! 

Background

Inverters are used in automotive to be able to control electrical machines to produce the desired speed and torque to propel the vehicle. Today the most common inverter topology is the 2-level inverter as it is a well proven and mature technology. In order to increase the efficiency of the inverter it may be advantageous to use other types of topologies. One such topology is the 3-level neutral point clamped inverter.

Scope

The main objective is to make models of the two types of inverters and simulate them during identical operating points to compare losses of the two topologies. Appropriate sub-tasks would to make models of the electrical components and their losses and derive controller alorigtms for both types of inverters.

Do you fit the profile

We expect that the applying Master students have experience/studied electrical power engineering which includes power electronics and electrical machine control. The student(s) is also expected to be present on site at Volvo Cars in Gothenburg during the majority of the thesis work, and any living arrengements needs be to organized by the student(s).

Duration

• The work will start in January 2022, exact date is to be discussed

• The duration for this thesis work is 20 weeks.
• 30 ECTS (academic credits) if in agreement with your Thesis Advisor in University
• This thesis is to be conducted by 1 or 2 students working in pair.

How to learn more and apply
Selection will be ongoing during the application period, so do not hesitate to send in your application. Attach your CV and personal letter stating your interests within the given area and your thoughts and credentials.

 Apply as soon as possible but no later than  2021-10-31.

 Please note that applications via email will not be accepted.

If you have any additional questions regarding the thesis work, you are welcome to contact:

Manager, Matilda Tsambasopoulos at matilda.tsambasopoulos@volvocars.com

Supervisor, Joachim Härsjö at joachim.harsjo@volvocars.com

Who are we?

Everything we do starts with people. Our purpose is to provide freedom to move, in a personal, sustainable and safe way. We are committed to simplifying our customers’ lives by offering better technology solutions that improve their impact on the world and bringing the most advanced mobility innovations to protect them, their loved ones and the people around them. 

Volvo Cars’ continued success is the result of a collaborative, diverse, and inclusive working environment. The people of Volvo Cars are committed to making a difference in our world. Today, we are one of the most well-known and respected car brands, with over 40,000 employees across the globe. We believe in bringing out the best in each other and harnessing the true power of people. At Volvo Cars your career is designed around your talents and aspirations so you can reach your full potential. Join us on a journey of a lifetime as we create safety, autonomous driving and electrification technologies of tomorrow.