PhD scholarship in Advanced Bidirectional dc Converters with Artificial Intelligence (AI) Techniques

tirsdag 14 jan 20

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Frist 28. januar 2020
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The Department of Electrical Engineering at the Technical University of Denmark (DTU) invites applications for a 3-year PhD position in the area of power electronics within the Electronics group (ELE).

ELE is responsible for power electronics research including advanced high efficiency dc-dc and dc-ac converters for renewable energy and storage applications. The goal of this PhD project is to research 1-10kW highly efficient and smarter dc transformers with the predictive and adaptive capability by employing artificial intelligence techniques.

The project will include applying artificial intelligence (AI), hybrid electromagnetic analysis, multi-physics simulation and multi-objective optimization to dc transformers, and building & testing of prototype circuits. Moreover, the PhD candidate will stay one year at Nanyang Technological University (NTU), Singapore, and carry out collaborated research between DTU and NTU in the field of power electronics.

Responsibilities and tasks
Efficient and effective energy systems integration with renewable and clean energies has been very critical for the future fossil-free society. Smart dc transformers become more and more popular in hybrid dc/ac micro-grid. Dual active bridge (DAB) converters and series resonant converters (SRCs) are the natural candidates for the smart dc transformers. You will carry out the research work, which covers: 

  1. Accurate loss and thermal modeling of power devices, incl. both passive and active components, in particular, emerging wide bandgap semiconductors
  2. Machine-learning algorithms for efficiency maximization and verification.
  3. Study of artificial intelligence (AI) methods for automatic design and optimization under given dc-dc converter specifications, to speed up power converter design.
  4. Hardware design and prototyping, and system level optimization of the smart dc transformers.
  5. Research documentation, incl. ISI journal papers, conference papers, patents, etc.
Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree. Preference will be given to candidates, who is familiar with renewable energy systems and artificial intelligence techniques, and has: 
  • Good grasps of analysis and synthesis of soft-switched dc-dc converters
  • Experience in multi-physics simulation
  • Experience of using wide bandgap devices, SiC and GaN
  • Experience with digital control
  • Good experience in using PCB layout software
  • Good experience in making laboratory prototypes, debugging and testing
  • Power electronic circuits
  • Excellent communication and language skills in in English
The successful candidate is highly self-motivated and enthusiastic, and is able to work well in teams.

Approval and Enrolment
The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide

The assessment of the applicants will be made by Associate Professor Zhe Zhang and Professor Michael A. E. Andersen.  

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years.

The workplace is DTU Lyngby Campus in our modern and newly renovated premises with state-of-the-art electronics research laboratories and student facilities. The PhD candidate will carry out one-year research stay at Nanyang Technological University (NTU), Singapore.

You can read more about
career paths at DTU here

Further information
Further information may be obtained from Associate Professor Zhe Zhang, tel.: +45 4525 3486 or email:

You can read more about DTU Elektro at  and the Electronics group at  

Please submit your online application no later than 28 January 2019 (23:59 local time)Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply online", fill out the online application form, and attach all your materials in English in one PDF file. The file must include: 
  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)
  • List of published ISI journal articles
  • Documentation of personal power electronics laboratory experience
Candidates may apply prior to obtaining their master's degree but cannot begin before having received it.

Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU Electrical Engineering educates students within electrical engineering technologies. We offer studies at BEng, BSc, MSc and PhD levels, and participate in joint international programmes. We conduct state-of-the-art research within antenna and microwave technology, robot technology, power and physical electronics, acoustic environment, electro-acoustics, electric power and energy. Our department has more than 200 members of staff.

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 11,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. Our main campus is in Kgs. Lyngby north of Copenhagen and we have campuses in Roskilde and Ballerup and in Sisimiut in Greenland.