PhD candidate for developing multi-physics models of high-power medium frequency transformers

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ETH Zurich est a la recherche de un doctorant pour modéliser des transformateurs.
Tâches
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Développer des modèles multi-physiques pour les transformateurs.
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Optimiser la conception et la géométrie des transformateurs.
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Construire des prototypes pour tests en conditions réelles.
Compétences
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Diplôme en ingénierie électrique avec mention.
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Connaissances en systèmes électroniques de puissance.
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Compétences en communication et profession d'équipe.
PhD candidate for developing multi-physics models of high-power medium frequency transformers
Eidgenossische Technische Hochschule Zürich, ETHZ
Workplace
Zurich
- Zurich region - Switzerland
Category
Electroengineering | Environment
Position
Junior Researcher / PhD Position
Published
30 April 2026
PhD candidate for developing multi-physics models of high-power medium frequency transformers
100%, Zurich, fixed-term
The
Laboratory for High Power Electronic Systems (HPE)
at the Department of Information Technology and Electrical Engineering of ETH Zurich conducts internationally leading research on power electronic converter systems, which are required, for example, in future energy distribution systems for the integration of renewable energy sources or in traction applications/
electric vehicles. Another research focus is on solid-state pulse modulators for medical applications (computer tomography/
cancer treatment) and accelerators (CERN). For the design and optimisation of the various power electronic systems, we develop advanced multi-physics models/digital twins/virtual prototypes at the component and system level. For a new research project on Solid-State-Transformers for future data centres, we are looking for a:
PhD candidate (100%) for developing multi-physics models of high-power medium frequency transformers
Job description
We are looking
for highly motivated individuals with an outstanding academic background who are interested in pursuing a PhD in the important and multidisciplinary research area of modelling and optimising high-power, medium-frequency transformers (MFTs). Compact, highly efficient transformers that operate at kilohertz frequencies are key components of high-power DC-DC converters, which are the core component of solid-state transformers (SSTs). Such SSTs are required, for example, in future AI data centres, where power consumption per computer rack increases to levels of several hundred kilowatts or even megawatts. To transfer energy efficiently from the grid to CPUs/GPUs, higher system voltages are required in data centres/computer racks, and efficient power electronics converter systems based on SSTs are essential for controlling the highly dynamic power flow.
For pushing the efficiency and power density limits of these SSTs you will develop multi-physics models of transformers, which describe not only the (HF) losses in the winding and the core, but also the cooling/temperature distribution in the transformer, resonances in the winding due to parasitic capacitances, and electrical insulation. You will also work on optimising the core and winding geometry, developing advanced cooling concepts for the windings and core, and designing solutions for efficiently connecting the high-current windings. Using the models and concepts developed, you will then identify technological barriers to the transferable power and efficiency of MFTs.
The developed models should be integrated into optimisation procedures for power electronic converter systems in a computationally efficient way. This is essential for achieving outstanding system efficiencies and power densities, as well as gaining a competitive edge. The models are also part of an ongoing, wider modelling framework development project at HPE, offering the opportunity to collaborate with other PhD candidates on different modelling aspects.
For verifying the new concepts and developed models, you will design and build MFT prototypes, including converter systems, to operate the MFTs under realistic conditions.
Profile
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You must
have a diploma/M.Sc. degree in electrical engineering with excellent grades
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Fundamental knowledge of power electronic converter systems
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Good communication skills
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Fluency in English
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The willingness to fully commit yourself as part of an international team.
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In addition, you should be interested in the detailed modelling and design of magnetic components and the optimisation of power electronic systems.
Workplace
We offer
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Your job with impact: Become part of ETH Zurich, which not only supports your professional development, but also actively contributes to positive change in society
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We are actively committed to a sustainable and climate-neutral university
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You can expect numerous benefits , such as public transport season tickets and car sharing, a wide range of sports offered by the ASVZ , childcare and attractive pension benefits
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Our laboratory offers a challenging and scientifically highly exciting full-time position in a dynamic, international team at one of the world-wide leading technical universities
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We strongly encourage participation at international conferences and offer a competitive salary, excellent benefits as well as outstanding research and laboratory facilities for your experiments
Working, teaching and research at ETH Zurich
We value diversity and sustainability
In line with our values , ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our Equal Opportunities and Diversity website to find out how we ensure a fair and open environment that allows everyone to grow and flourish. Sustainability is a core value for us - we are consistently working towards a climate-neutral future .
Curious? So are we.
We look forward to receiving your online application with the following documents:
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Comprehensive CV
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Your B.S. and M.Sc. transcripts
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Electronic copies of the B.Sc/M.Sc. thesis and/or your publications (if available)
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Names/adresses of references
Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered.
Further information about Laboratory for High Power Electronic Systems (HPE) can be found on our website . For further information, please contact Prof. Dr. Jürgen Biela, Tel 0041 (0)44 632 69 22 or e-mail
E-Mail schreiben
(no applications).
Apply online now
ETH Zurich is one of the world’s leading universities specialising in science and technology. We are renowned for our excellent education, cutting-edge fundamental research and direct transfer of new knowledge into society. Over 30,000 people from more than 120 countries find our university to be a place that promotes independent thinking and an environment that inspires excellence. Located in the heart of Europe, yet forging connections all over the world, we work together to develop solutions for the global challenges of today and tomorrow.
More information
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