KTH Royal Institute of Technology

KTH Royal Institute of Technology in Stockholm has grown to become one of Europe’s leading technical and engineering universities, as well as a key centre of intellectual talent and innovation. We are Sweden’s largest technical research and learning institution and home to students, researchers and faculty from around the world. Our research and education covers a wide area including natural sciences and all branches of engineering, as well as architecture, industrial management, urban planning, history and philosophy.

Project description

Third-cycle subject: Electrical engineering (Electrical Energy Conversion)

We are looking for an engaged, independent-thinker candidate for a project related to multiphase electrical machines, that is electrical machines where the number of phases is greater than three. The Department of Electric Power and Energy Systems at KTH finances this project, which is complementary to other projects in the same research field currently running in the department. You will be part of the Electrical Machines and Drives Laboratory team, where you will report to two faculty members (Assoc. Prof. Luca Peretti and Assoc. Prof. Oskar Wallmark).

You will be expected to work with analysis and the estimation of electrical parameters of a multiphase electrical machine, in particular addressing the issue of estimating parameters for higher-order voltage/current odd harmonics, up to the number of phases. In a different fashion with respect to three-phase machines, such harmonics heavily contribute to the current ripple and sometimes to the torque generation in multi-phase electrical machines. Only a precise knowledge of their values leads to a robust control solution. You will pay particular attention on the methods and the algorithms that could lead to an automatic parameter estimation by means of tailored self-commissioning procedures performed by means of frequency converters.

Continuous interaction with the projects running in parallel, as well as engagement in experimental testing performed in laboratory, is also part of your work.

In addition to your doctoral studies, you will be expected to teach or perform other departmental duties up to 20% of your full-time employment. Doctoral student employment at KTH offers excellent conditions with competitive salaries, health care, social security, and contributions to pension funds. 

What we offer


To be admitted to postgraduate education (Chapter 7, 39 § Swedish Higher Education Ordinance), the applicant must have basic eligibility in accordance with either of the following:

  • passed a degree at advanced level,
  • completed course requirements of at least 240 higher education credits, of which at least 60 higher education credits at advanced level, or
  • in any other way acquired within or outside the country acquired essentially equivalent knowledge.


In order to succeed as an doctoral student at KTH you need to be goal oriented and persevering in your work. In the selection of the applicants, the following will be assessed:

  • ability to independently pursue his or hers work,
  • ability to collaborate with others,
  • have a professional approach and
  • analyse and work with complex issues.                                                     

Prospective candidates should possess a background in electrical machines and control of electrical drives. Knowledge of design of electrical machines, power electronics and pulse width modulation techniques is very beneficial.

Target degree: Doctoral degree

Information regarding admission and employment

Only those who are or have been admitted to third-cycle studies may be employed as a doctoral student. The term of the initial contract may not exceed one year and may thereafter be extended. Doctoral students may engage in teaching, research, and administration corresponding to a maximum of 20 % of a full-time position.

Union representatives

You will find contact information for union representatives on KTH's website.

Doctoral section (Students’ union on KTH Royal Institute of Technology)

You will find contact information for doctoral section on the section's website.


Apply for the position and admission through KTH's recruitment system. It is the applicant’s responsibility to ensure that the application is complete in accordance with the instructions in the advertisement.

Applications must be received at the last closing date at midnight, CET/CEST (Central European Time/entral European Summer Time).

Applications must include the following elements:

  • CV including your relevant professional experience and knowledge.
  • Application letter with a brief description of why you want to pursue research studies, about what your academic interests are and how they relate to your previous studies and future goals. (Maximum 2 pages long)
  • Copy of the degree certificate(s) and transcripts of records from your previously attended university-level institutions. Translations into English or Swedish if the original documents are not issued in one of these languages.
  • Representative publications or technical reports. For longer documents, please provide a summary (abstract) and a web link to the full text.

Other information

Gender equality, diversity and zero tolerance against discrimination and harassment are important aspects of KTH's work with quality as well as core values in our organization.

For information about Processing of personal data in the recruitment process please read here.

We firmly decline all contact with staffing and recruitment agencies and job ad salespersons.

Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.

Type of employment Temporary position longer than 6 months
Contract type Full time
First day of employment As agreement
Salary Monthly salary according to KTH's doctoral student salary agreement
Number of positions 1
Working hours 100%
City Stockholm
County Stockholms län
Country Sweden
Reference number J-2018-2847
  • Luca Peretti, Associate Professor, lucap@kth.se
  • Oskar Wallmark, Associate Professor, Docent, owa@kth.se
  • Anna Mård, HR Officer, rekrytering@eecs.kth.se
Published 06.Dec.2018
Last application date 31.Jan.2019 11:59 PM CET

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