PhD position for developing multi-physics models of planar inductors and transformers

To push the efficiency and power density limits of such planar magnetic devices, you will develop multi-physics models of planar magnetics. These models will comprehensively describe the (HF) losses in the windings, the parasitic capacitances of the windings, and also the temperature distribution in the winding and also the core. Furthermore, you will develop models for designing the electrical insulation of the winding. Based on these models, you will work on optimising the core and winding geometry, as well as developing advanced cooling concepts for the windings and core. Based on the models and developed concepts, you will then identify technological barriers to power density of planar magnetics. The developed models should be integrated into optimisation procedures for power electronic converter systems in a computationally efficient manner. 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 various modelling aspects. For verifying the new cooling and winding concepts as well as the developed models, you will design and build different prototypes, including PE converter systems, to operate the planar magnetics under realistic conditions.

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).

• You must have a diploma/M.Sc. degree in electrical engineering with excellent grades

• Fundamental knowledge of power electronic converter systems

• Good communication skills

• Fluency in English

• The willingness to fully commit yourself as part of an international team.

• In addition, you should be interested in the detailed modelling and design of magnetic components and the optimisation of power electronic systems.