Thesis Worker: Automotive inverter modulation strategies

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. In order to produce the desired quantities some modulation strategy needs to be implemented. A trade off needs to be done in terms of switching frequency and strategy depending on operating area to balance torque ripple, NVH and system losses.

Scope

Objective:

•        Investigate and implement at least two different modulation strategies including discontinuous space vector pulse width modulation and overmodulation

Activities:

•        Literature review on different modulation strategies suitable for automotive inverters

•        Make a discrete controller, plant model and inverter model in MATLAB-SIMULINK

•        Implement the different strategies and compare the results in terms of efficiency.

•        Final report which describes findings and when it is preferred to use the different strategies.

What you´ll bring

We expect that the applying 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 most of the thesis work, and any living arrangements needs be to be organized by the student(s).

Duration

•        The work will start in January 2024, 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 student.

Be part of the change – apply today!

We’d love to receive and review your application. 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 2024-10-31.

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, Johan Zackrisson at johan.zackrisson@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