School of Electrical Engineering and Computer Science at KTH

Project description

This is one of two projects about the interaction of protection systems with present and new types of power electronic converters that are used with wind, solar and HVDC infeeds. A range of problems has already been noted for some existing protection methods, regarding the converters' fault current level, phase-current balance, nonlinearity etc.
The project will work on identifying future problems and proposing designs of converter control and protection algorithm that work efficiently together. This project is focused more on the converters and their control. Both projects will work closely together and give the students a strong grasp of both of these important subjects.
The projects are sponsored by Swedish Energy Agency and Hitachi Energy, and will include collaboration with industry experts. This project will include simulations of different mixes of inverters in the system, with testing of how they can affect projection systems. Then there will be more focus on the grid forming converters and on what details of the control and hardware are most significant for the effect on protection systems. The ability to change inverters as well as protection systems must be investigated, to find a most effective solution.

Third-cycle subject: Electrical engineering 

Supervision: Professor Xiongfei Wang

What we offer

Admission requirements

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 second cycle degree (for example a master's degree), or
  • completed course requirements of at least 240 higher education credits, of which at least 60 second-cycle higher education credits, or
  • acquired, in some other way within or outside the country, substantially equivalent knowledge

In addition to the above, there is also a mandatory requirement for English equivalent to English B/6, read more here

Selection

In order to succeed as a doctoral student at KTH you need to be goal oriented and persevering in your work. During the selection process, candidates will be assessed upon their ability to:

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

After the qualification requirements, great emphasis will be placed on personal competency. 

Target degree: Doctoral degree

Information regarding admission and employment

Only those admitted to postgraduate education may be employed as a doctoral student. The total length of employment may not be longer than what corresponds to full-time doctoral education in four years ' time. An employed doctoral student can, to a limited extent (maximum 20%), perform certain tasks within their role, e.g. training and administration. A new position as a doctoral student is for a maximum of one year, and then the employment may be renewed for a maximum of two years at a time.

Union representatives

Contact information KTH's website.

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

Contact information section's website.

Application

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/Central European Summer Time).

Applications must include:

  • 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)
  • Copies of diplomas and grades from previous university studies and certificates of fulfilled language requirements (see above). Translations into English or Swedish if the original document is not issued in one of these languages.Copies of originals must be certified.
  • Representative publications or technical reports. For longer documents, please provide a summary (abstract) and a web link to the full text.

Other information

Striving towards gender equality, diversity and equal conditions is both a question of quality for KTH and a given part of our values.

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
Contract type Full time
First day of employment According to agreement
Salary Monthly salary according to KTH's doctoral student salary agreement
Number of positions 1
Full-time equivalent 100%
City Stockholm
County Stockholms län
Country Sweden
Reference number J-2023-0295
Contact
  • Professor Xiongfei Wang, xiongfei@kth.se
  • Lisa Olsson HR Officer, rekrytering@eecs.kth.se
Published 09.Feb.2023
Last application date 03.Mar.2023 11:59 PM CET

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