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 protection systems. 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 existing types of protection scheme with different mixes of inverters in the system. Then there will be more focus on the grid forming converters and on considering the state-of-art knowledge for protection methods that overcome particular problems. There will be testing of proposed methods, and development of further methods. 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: Associate Professor Nathaniel TaylorWhat 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:
In addition to the above, there is also a mandatory requirement for English equivalent to English B/6, read more hereSelection
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:
After the qualification requirements, great emphasis will be placed on personal competency.
Target degree: Doctoral degreeInformation 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
Contact information section's website.Application
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Applications must be received at the last closing date at midnight, CET/CEST (Central European Time/Central European Summer Time).
Applications must include:
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Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.