PhD Position in Electromagnetic Analysis and On-line Fault Detection in Hydropower Generators

Trondheim, Norway
24 Feb 2018
End of advertisement period
25 Mar 2018
Contract Type
Full Time

The Faculty of Information Technology and Electrical Engineering (IE) at the Norwegian University of Science and Technology (NTNU) has a vacancy for a three year position as a PhD Research Fellow at the Department of Electric Power Engineering (IEL). The described PhD is part of the research within the Norwegian Centre for Hydropower Technology (HydroCen).

About the Norwegian Centre for Hydropower Technology (HydroCen)

HydroCen is a Centre for Environment-friendly Energy Research (FME). The FME scheme is established by the Norwegian Research Council. The objective of the Research Council of Norway FME-scheme is to establish time-limited research centres conducting concentrated, focused and long-term research of high international caliber to solve specific challenges in the field. The FME-centres can be established for a maximum period of eight years.

The main objective of HydroCen is to enable the Norwegian hydropower sector to meet complex challenges and exploit new opportunities through innovative technological solutions. The research areas include: hydropower structures, turbine and generators, market and services, and environmental design. NTNU is the host institution and main research partner together with SINTEF Energy Research and the Norwegian Institute for Nature Research (NINA).

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, 10 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

On-line condition monitoring of large synchronous machines, including salient-pole hydropower generators, enables preventive maintenance and improves the reliability of the power generation units. Continuous monitoring of the generator makes it possible to detect faults at an early stage and plan maintenance actions before they cause major problems and unscheduled shutdowns. With the development of modern sensors and digitization in the industry, more signals (and data) will be available for on-line condition monitoring of critical equipment in hydropower plants.

The focus of this PhD project will be on on-line detection of both electrical (e.g. short circuits in rotor or stator windings) and mechanical (e.g. eccentricity) faults, as well as discrimination between them. For this purpose, different signals (e.g. terminal current or voltage, stray magnetic fields) can be analyzed and compared for healthy and faulty conditions to identify fault-related components and to develop a fault detection method. One example is electrical signature analysis where spectral analysis of terminal electrical signals is employed to detect faults in electrical machines. Other examples include analysis of stray magnetic fields outside the machine and stator vibration analysis. In some cases, more than one fault detection method can be applied to increase the reliability. The research work includes both finite-element simulations and experimental validation.

Formal requirements and qualifications

The applicant must hold a M.Sc. degree in Electrical Power Engineering. Knowledge and experience in electrical machinery, FEM-analysis and laboratory experience are beneficial.

High motivation and good analytical and communication skills will be emphasized in the employment process. According to the formal PhD regulations, average grade B or better is required. Personal suitability will be emphasized.

We will prioritize candidates based on the following criteria:

  • Excellent communication skills - written and oral.
  • Ability to work independently, as well as in team.

Formal regulations for PhD

Appointments are made in accordance with the regulations in force regarding terms of employment for PhD candidates issued by the Ministry of Education and Research, with relevant parts of the additional guidelines for appointment as a PhD candidate at NTNU. Applicants must undertake to participate in an organized PhD programme of study during their period of employment. The person who is appointed must comply with the conditions that apply at any time to employees in the public sector. In addition, a contract will be signed regarding the period of employment.

Applicants must be qualified for admission as PhD students at NTNU. See for information about PhD studies at NTNU.


We can offer

  • an informal and friendly workplace with dedicated colleagues
  • academic challenges
  • attractive schemes for housing loan, insurance and pension in the Norwegian Public Service Pension Fund

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.

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 PhD position is in code 1017 Research fellow, and is remunerated at a gross NOK 436 900 – 537 700 per year, depending on qualifications. A deduction of 2% is made as a statutory contribution to the Norwegian Public Service Pension Fund.

Requirements for the application

Applications are to be submitted electronically through this page (

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

  • A project description (1-2 pages).
  • CV.
  • Certified copies of academic diplomas and certificates.
  • Applicants from universities outside Norway are kindly requested to send a diploma supplement or a similar document, which describes in detail the study and grading system and the rights for further studies associated with the obtained degree.
  • Publications relevant to the research scope and any other work which the applicant wishes to be taken into account should clearly state the applicant’s contribution. A short summary should be attached outlining the applicant’s input to joint work.
  • Names and contact information of at least two references.

Incomplete applications will not be taken into consideration.

Further details about the position can be obtained from Professor Arne Nysveen:

The application deadline is March 25, 2018

Reference code: IE-028-2018 


  • Deadline Sunday, March 25, 2018
  • Employer NTNU - Norwegian University of Science and Technology
  • Website
  • Municipality Trondheim
  • Place of service Trondheim
  • Jobbnorge ID 148823
  • Internal ID IE-028-2018
  • Scope Fulltime
  • Duration Temporary


  • Applications on this job are registered in an electronic form on
  • You must complete: Standard CV
  • Please refer to where you first saw this job advertised!