Post Doctor Position on Design and Optimization of Medium Voltage DC Grids for Supplying Power to Underwater Vehicles” Norwegian University of Science and Technology, Faculty of Information Technology and Electrical Engineering

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Post Doctor position on Design and optimization of Medium Voltage DC grids for supplying power to underwater vehicles”


The Faculty of Information Technology and Electrical Engineering (IE), at the Norwegian University of Science and Technology (NTNU) has a vacancy for a 100% position (2 years) as a Post Doctor researcher at the Department of Electric Power Engineering (IEL), The described Post Doctor position is part of a research project on “High-Efficiency all-electric DC supply systems for subsea work-class remotely operated vehicles (HEROVs)”. HEROVs is a joint research collaboration between NTNU and two industrial partners: Ingeteam Power Technology S.A. based in Bilbao, Spain, and Argus Remote Systems A.S. based in Bergen, Norway.


Information about the Department


Currently there are 12 Professors, 7 Associate Professors and 4 Lecturers at the Department of Electric Power Engineering. In addition, there are 4 Adjunct Professors, 2 Adjunct Associate Professors, 9 Postdoctoral researchers, 3 Researchers, about 35 PhD students, and 15 technical/administrative staff. Research activities are organized under two research groups: Power Systems Group and Power Technology Group. The department has a good laboratory infrastructure for research and education, as well as a mechanical workshop, supported by a technical staff of 10 persons.


Work description


The increasing growth of offshore and subsea activities in deep and ultra-deep waters, underpinned by the steep increase in offshore wind farms deployments, oil and gas processes progressively moved to the seafloor and other niche applications such as deep sea mining, military and forensics, require high number of underwater vehicles. They have high power demands and must be capable of operating under extreme conditions. The focus of the HEROVs project is on work-class Remotely Operated Vehicles (WROVs), which have power ratings exceeding 200 kVA and operating in water depths up to 11000 m. The WROV industry is presently transitioning to all-electric solutions enabling higher reliability, reduced weight and improved efficiency and controllability, but this poses challenging requirements to their subsea power supply system.


The goal of the project is to design, analyze and experimentally verify high-efficiency all-electric DC power distribution systems for deep underwater vehicles based on medium-voltage DC (MVDC) technology. In particular, within HEROVs, a post doc researcher will investigate the design and optimization of the MVDC distribution grid, while a closely related PhD project will focus on the design and optimization of power electronic converters employed on WROVs.


Within this context, there is one vacant Post Doctor position available at NTNU within the field of “Design and optimization of Medium Voltage DC grids for supplying power to underwater vehicles”.


The successful Post Doctor candidate is expected to identify optimal configurations for the DC power distribution grid used to supply power to the underwater loads by applying multi-objective optimization techniques. This shall result in the development of a tool to identify the best configuration from multiple standpoints (e.g. in terms of losses, weight, cost, etc.) and given input conditions. The design criteria should take into account the technical choices (e.g. converter design) made for the WROVs and the support vessel. Hence, the Post Doctor candidate will need to work in close synergy with other researchers contributing to the project. The final result will be the small-scale laboratory testing of the selected grid system using Power Hardware-in-the-Loop techniques, in collaboration with the industrial partner, Ingeteam.


Formal requirements and qualifications


Applicants must hold a PhD degree within electrical engineering and experience with MVDC application and/or a good understanding of multi-objective optimization techniques applied to electrical grids. A strong background in stability and control of power electronic systems will be merited and experience with Hardware-in-the-Loop testing will be an advantage.


Excellent analytical and communication skills are required.


The candidates must have excellent collaboration skills as well as an ability to work independently.


Applicants currently enrolled in a PhD programme who expect to pursue the PhD degree before the date of appointment must forward documentation for the date of their final exam.


Applicants are required to submit a one-page research proposal within the proposed research area.


Language requirements


Applicants must provide evidence of good English language skills, written and spoken. The following tests can be used as such documentation: TOEFL, IELTS or Cambridge Certificate in Advanced English (CAE) or Cambridge Certificate of Proficiency in English (CPE). Minimum scores are:


  • TOEFL: 600 (paper-based test), 92 (Internet-based test)

  • IELTS: 6.5, with no section lower than 5.5 (only Academic IELTS test accepted)

  • CAE/CPE: grade B or A.


Salary conditions:

The position is in code 1017 Research fellow, salary grade 50–62 in the Norwegian State salary scale, gross NOK 430 200 – 529 500 per year, depending on qualifications. A deduction of 2 % is made as a statutory contribution to the Norwegian Public Service Pension Fund.



We can offer:


  • an informal and friendly workplace with dedicated colleagues

  • academic challenges

  • attractive schemes for home loans, insurance and pensions in the Norwegian Public Service Pension Fund


The appointment is subject to the conditions in effect at any time for employees in the public sector.


Diversity is important to achieve a good, inclusive working environment. We encourage all qualified applicants to apply, regardless of gender, disability, and cultural background. NTNU wishes to increase the number of women in its workforce, and women are specifically encouraged to apply.


The appointment is to be made in accordance with the regulations for State Employees and Civil Servants in Norway. The candidate must adhere to regulations that concern changes and developments within the discipline and/or the organizational changes concerning activities at NTNU.


Under Section 25 of the Freedom of Information Act, information about the applicant may be made public even if the applicant has requested not to have her/his name entered on the list of applicants. 


Requirements for the application


Applications are to be submitted electronically through this page (


The application should contain (all in one combined PDF-file:


  • CV

  • Certified copies of diplomas and certificates with information about education, scientific experience including a list of relevant publications (including a brief description of your contribution if this is not obvious) and other relevant work experience


Incomplete applications will not be taken into consideration.


The Post Doctor position is expected to start in summer 2018.


For further information about position, please contact Professor Elisabetta Tedeschi by e-mail:


Mark the application: IE-042-2018


The application deadline is April 8, 2018

If you apply for this position please say you saw it on Engineeroxy


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